The Rust engine: one binary replaces every script and the JS detector, fully open (#714)

* Add oracle harness: verb goldens and function-level vectors

Records stdout/stderr/exit/files for every impeccable verb over a fixed
corpus and replays them against an alternate implementation. Adds a loader
hook that captures per-function call vectors from the pure engine modules.

Prepared with AI assistance (Claude Code).

* Oracle: hook, hook-before-edit, hook-admin cases and goldens

Prepared with AI assistance (Claude Code).

* Add docs/CLI-CONTRACT.md: observable behavior of every impeccable verb

Prepared with AI assistance (Claude Code).

* Oracle: context/doctor/pin/surface-brief/critique/palette/embed/signals/csp/seed/genimg/question cases and goldens

Prepared with AI assistance (Claude Code).

* Oracle: live-mode cases and goldens (roots, inject, wrap, insert, accept, session, manual edits, daemon)

Prepared with AI assistance (Claude Code).

* Oracle: mask the binary path before HOME; export launcher env to the binary

Prepared with AI assistance (Claude Code).

* detect: set process.exitCode instead of exiting after the final write

process.exit() right after a large piped stdout write truncated JSON output
at the pipe buffer boundary; found by the oracle harness. Re-record the six
directory-scan goldens that had captured the truncation.

Prepared with AI assistance (Claude Code).

* Oracle: normalize the hook-admin command in both runtimes' forms and audit chars

Prepared with AI assistance (Claude Code).

* Skill text: invoke the impeccable launcher instead of node scripts

Every `node {{scripts_path}}/<name>.mjs` becomes `{{scripts_path}}/impeccable <verb>`
(context-signals -> signals, hook-admin -> hooks). Setup step 1 drops Node, points
Windows shells without sh at impeccable.cmd, and says the launcher runs a
self-contained binary. allowed-tools follows.

Prepared with AI assistance (Claude Code).

* Scripts dir: replace the Node scripts with the impeccable launcher

skill/scripts keeps command-metadata.json and the page JS; every .mjs entry
point, lib/, and live/ are gone (the binary owns those verbs). Adds the POSIX
launcher, impeccable.cmd, VERSION (copied from the new root ENGINE_VERSION),
scripts/fetch-engine.mjs (bun run fetch:engine) to pull the pinned binary
into skill/scripts/bin/<os>-<arch>/, and gitignores that bin dir.

Prepared with AI assistance (Claude Code).

* Build: ship the launcher instead of bundling the JS engine

readSourceFiles no longer copies cli/engine into the skill; the scripts
payload is the launcher (executable bit preserved through dist, plugin/, and
universal.zip), impeccable.cmd, VERSION (synced from ENGINE_VERSION on every
build), the page JS, and command-metadata.json. Hook manifests call
`<scripts>/impeccable hook` behind an existence guard (Codex adds a
commandWindows sibling calling impeccable.cmd; Cursor runs hook-before-edit;
GitHub keeps the git rev-parse form; Grok mirrors Claude); the Node probe and
systemMessage notice are gone. build:release fetches the pinned engine for
every target (lenient) and stages bin/<os-arch>/ into the dist skill copies
after root harness dirs and plugin/ were synced, so git-delivered trees stay
launcher-only. The detection-rule count check reads the vendored
extension/detector/antipatterns.json and is skipped when absent.
build:browser is a stub; the codex prefix rewrite leaves
`{{scripts_path}}/impeccable` alone.

Prepared with AI assistance (Claude Code).

* CLI: turn the impeccable npm package into a platform-binary shim

cli/engine, cli/lib, and cli/bin/commands are gone; their behavior lives in
the engine binary. cli/bin/cli.js now resolves the binary from IMPECCABLE_BIN,
the @impeccable/cli-<os>-<arch> optional dependency (templates under
cli/platform-packages/, published by the engine release), the
~/.impeccable/bin/<version>/ cache, or a checksum-verified download, and
execs it. package.json drops the engine dependencies and the library
exports; puppeteer moves to devDependencies for the icon scripts.
README.npm.md describes the shim.

Prepared with AI assistance (Claude Code).

* Tests: gate behavior on the oracle and the engine binary

Unit tests of the deleted Node scripts and the JS detector are removed;
their behavior is pinned by tests/oracle goldens (frozen JS behavior plus
reviewed deltas) and the engine's own tests. tests/oracle.test.mjs replays
the corpus against the binary (IMPECCABLE_BIN or skill/scripts/bin/<target>/,
via tests/lib/engine-bin.mjs) and skips cleanly without one; the framework
fixture sweep drives live-inject, live-wrap, and detect-csp through the
binary the same way. record.mjs learns --bin. The function-level vectors
under tests/oracle/vectors/calls are committed as the frozen snapshot they
can no longer be regenerated from. Suites: core trimmed to build and
transformer tests, oracle added to the default run, detector/live reduced to
packaging and reference checks, the live-e2e helper tests move to the opt-in
live-e2e lane pending its retarget, cli-remote-e2e is an empty placeholder.

Prepared with AI assistance (Claude Code).

* Docs: describe the launcher, the engine pin, and the oracle gate

CLAUDE.md gains an Engine binary section (launcher lookup order, ENGINE_VERSION,
untracked binaries, how tests get one, the oracle as behavior gate, what stays
JavaScript) and drops the Node-script and JS-detector descriptions; the CLI
and detection-rule sections point at the shim and the engine repo. README.md
states the skill needs no runtime and lists the launcher-based hook commands;
AGENTS.md follows. CLI-CONTRACT.md's intro notes the scripts it quotes are
the recorded source, not the tree.

Prepared with AI assistance (Claude Code).

* Tests: tighten the hook command guard assertion

Prepared with AI assistance (Claude Code).

* Oracle: re-golden 46 cases for the engine's own command names; record them in DELTAS.md

Prepared with AI assistance (Claude Code).

* Build: ship launcher-only release zips by default

IMPECCABLE_BUNDLE_ENGINE=1 opts in to staging the engine binaries into the
dist skill copies. Bundling every target into every provider copy put
dist/universal.zip near 340 MB, past the 25 MB Cloudflare Pages file cap
that impeccable install downloads through.

Prepared with AI assistance (Claude Code).

* Tests: drive the live-e2e orchestrator through the engine binary

The session, fake-agent loop, steer test, and manual-edit probe spawn
<binary> <verb> (live-server, live, live-inject, live-wrap, live-insert,
live-accept, live-poll, live-complete) resolved by tests/lib/engine-bin.mjs
instead of node skill/scripts/live-*.mjs; the completion typing the agent
imported from the deleted live/completion.mjs is a small local helper. The
live-e2e helper unit tests move back into the default live suite (the steer
loop skips without a binary).

Prepared with AI assistance (Claude Code).

* Tests: run new-work-e2e through the engine's serve-question and generate-image verbs

Prepared with AI assistance (Claude Code).

* Tests: point the skill-behavior harness at the launcher and engine binary

The bash tool exports IMPECCABLE_BIN so the staged skill's launcher runs
without a download; scenarios assert on 'impeccable context' instead of
context.mjs and skip without a binary.

Prepared with AI assistance (Claude Code).

* Tests: note what plugin-e2e validates before and after the generated-output sync

Prepared with AI assistance (Claude Code).

* Oracle: record the engine's 'wasm-unsafe-eval' CSP meta patch as a reviewed delta

Prepared with AI assistance (Claude Code).

* Rebase reconciliation: fold main's post-freeze work into the swapped tree

The rebase onto origin/main brought changes whose JS engine halves left the
tree with the swap. This commit reconciles what survives:

- Suite map: register main's comp-fidelity unit tests (build-phase,
  comp-diff, font-match, hero-checks) in the core suite and
  live-browser-ignores in the live suite.
- Payload guard: the skill scripts payload now allowlists the comp-fidelity
  build pipeline (comp-spec/comp-diff/build-phase/font-match and their libs),
  the one Node toolchain that has not moved into the engine.
- Drop skill/scripts/live/project-ignores.mjs, lib/live-path-globs.mjs, and
  their test: they import hook-lib/live-inject/impeccable-paths, which the
  swap deleted, and their consumer (the JS live server) is the engine now.
- skill text: the comp pipeline's calls to engine verbs (generate-image,
  embed-prompt) use the launcher spelling.
- Oracle: re-record 17 detect goldens over the fixture set main changed
  (oklch #592, color-mix #578, 1D grid #615, the two comp-fidelity rules)
  and record the gap in DELTAS.md; those JS rule changes are not yet ported
  to the engine, and the goldens pin its current behavior.

bun run test (oracle included) and bun run build are green on this tree.

AI-assisted change: implemented with Claude Code.

Co-Authored-By: Claude <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WaJv2c4oN8wS7Ttq4XRqyx

* Launcher: engine-probe PATH validation, working .cmd download path; CI: drop stale path, add oracle job

Byte-identical copies of the engine repo's launchers (engine main
af7572c): the retired 3.x npm CLI on PATH or in ~/.impeccable/bin is
rejected by the engine-probe handshake instead of hijacking every verb;
impeccable.cmd's download path is rewritten as straight-line goto flow
(the parenthesized blocks expanded %url%/%cached% at parse time, making
it dead code) with certutil sha256 verification and a windows-arm64 ->
x64 asset fallback; the final error points at the release download
instead of npm i -g (npm still serves the 3.x CLI).

ci.yml: the generated-output check no longer diffs the deleted
cli/engine/detect-antipatterns-browser.js, and a new oracle job fetches
the pinned engine (bun run fetch:engine) and replays tests/oracle/
against it. The job is continue-on-error with a loud warning until the
first engine release exists; flipping it to required is a release-time
toggle, documented in the workflow.

Verified here: sh -n on both launcher copies, bun run build green, full
oracle replay against the rebuilt engine binary green (770 pass, 0
fail), and a launcher behavior test proving a fake 3.x CLI on PATH is
skipped while the download + checksum chain completes against a local
file server.

Prepared with AI assistance (Claude Code).

* Oracle: restore detector goldens to post-fix behavior after the engine ports

The Aug 17-31 detector fixes (oklch parsing, color-mix nested hex, 1D grid
pass, comment stripping, root-relative linked stylesheets, URL userinfo
redaction, inert ignore-value refusal) and the comp-fidelity rules
organic-clip-path / buried-raster are ported to the engine. Re-records the
gap-pinning detect goldens from the fixed binary (glow.html included: its
.photo-opaque-grad column now carries the buried-raster finding it was
written for), replays the frozen checkHtmlPatterns call vectors through the
last JS engine state in history (db1462b9^; args untouched, 14 of 101
results moved), and rewrites the DELTAS gap section into the landed-ports
note. Each re-recorded json fixture golden byte-matches that JS state's
output; oracle: 770 pass, 0 fail.

Prepared with AI assistance (Claude Code).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WaJv2c4oN8wS7Ttq4XRqyx

* Oracle: pin the Aug 17-31 verb fixes ported to the Rust engine

New cases: hook-session-grok-edit-then-stop (Grok Build camelCase envelope,
end_turn/shutdown/stopHookActive Stop handling, 35ae0733 + bfe634e2 +
3c442af7, #646), hook-session-codex-stop-decision (Codex Stop emits
decision/block, c9e7cd8a, #603), and doctor-order-boot-and-deep (boot and
deep findings keep their established artifact order, 80997663).

Re-recorded goldens whose old bytes froze pre-fix behavior, with a
DELTAS.md entry naming each upstream hash: the Stop finding-cache sync
(3c442af7), the Edit|Write manifests without the retired MultiEdit matcher
(7d5c60d2), and the failWithRollback field order (1f2c3f9d).

Prepared with AI assistance (Claude Code).

* Oracle: drop a duplicated DELTAS section

The verb-fix section landed twice when two porting sessions staged the
same file; keep one copy.

Prepared with AI assistance (Claude Code).

* Oracle: pin the hooks ignore-value inert-entry refusal

Three hadmin-ignore-value-inert-* cases record the engine's port of
be87f5eb (#662) to hooks ignore-value: an exact value for a rule whose
findings can never extract one is refused with the wildcard-plus-file
route (and no config write), while the wildcard scoped form for the same
rule is accepted. Goldens recorded from the engine binary and verified
byte-for-byte against the ea360025 hook-admin.mjs on the same sequences.
No existing golden changes, so no DELTAS entry is owed.

Prepared with AI assistance (Claude Code).

* Launcher: fail closed on a missing download checksum (engine triage C1)

Byte-identical sync of the engine repo's launchers: a freshly downloaded
engine binary now runs only after verifying against its .sha256 sidecar.
A sidecar that cannot be fetched, or a machine with no sha256 tool,
refuses the download instead of exec'ing an unverified binary; the
wget-only path fetches the sidecar too. Binaries already on PATH or in
the cache that pass engine-probe are unaffected.

Prepared with AI assistance (Claude Code).

Co-Authored-By: Claude Code <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WaJv2c4oN8wS7Ttq4XRqyx

* Enforce engine-before-skill release order (triage D4)

The launcher, npm shim, and `impeccable install` all resolve the engine
binary for the pinned ENGINE_VERSION, so a skill/CLI release or a rust-swap
merge published ahead of the engine release + platform packages dead-ends
every install path. Add a mechanical guard:

- scripts/check-engine-release.mjs: verifies all five dist binaries +
  .sha256 and the five @impeccable/cli-<os>-<arch> npm platform packages
  exist for the pinned ENGINE_VERSION; names missing assets, exits non-zero.
  Honors IMPECCABLE_DOWNLOAD_BASE.
- release.mjs: hard-fails release:skill and release:cli when assets are
  missing; extension is exempt (vendored WASM detector, no engine exec).
- CI engine-release-ready job: runs the check, continue-on-error with a
  loud ::warning until the first engine release exists (flip to false then).
- CLAUDE.md Releases: documents the enforced ordering.

Prepared with AI assistance (Claude Code).

* Oracle: re-record the Sep-1 verb fixes ported to the Rust engine

Five fixes landed on main in JS between the swap branch and its rebase and were
ported to the engine; the goldens they touch are re-recorded from the fixed
binary, each engine output first diffed byte-for-byte against the upstream JS on
the same inputs. DELTAS.md documents every case with its upstream hash.

- critique-* (usage/unknown/latest-existing/write-then-read/write-monorepo-child):
  the #660 critique close path (identity + fingerprint freshness, ~NNNN
  collision suffix, closed flag, close verb, latest --json). Upstream 5211bdf4.
- detect-* (new overused-font fixture cases, dir/scope/no-advisory sweeps):
  the #678 overused-font primary-face change (a system stack keeps its system
  face, so a Roboto fallback no longer flags). Upstream 2cfd6076.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WaJv2c4oN8wS7Ttq4XRqyx

* Tests: fix pre-existing release-guard staging on the swap branch

release.test.mjs was already red on the swap branch: release.mjs imports
check-engine-release.mjs and fetch-engine.mjs (the D4 engine release-order
guard), which the temp work tree never staged, so every dry run failed to
resolve the module instead of exercising the guard. Stage both modules and set
IMPECCABLE_SKIP_ENGINE_CHECK=1 so the guard does not probe the network; this
suite predates the guard and only covers the version/changelog/artifact checks.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WaJv2c4oN8wS7Ttq4XRqyx

* oracle: pin E8 stale-hook-manifest detector fallback (context)

Cover the v3-to-launcher upgrade fix (triage E8) recorded from the engine
binary and hand-reviewed:

- context-stale-hook-manifest: a .claude/settings.local.json naming the retired
  `node .../hook.mjs` script under the claude-code provider emits
  MANUAL_DETECTOR_REQUIRED, because the stale marker no longer counts as an
  active hook (its script is gone after the update).
- context-launcher-hook-active: the same manifest in the launcher form still
  suppresses MANUAL_DETECTOR_REQUIRED, confirming the launcher marker is
  recognized as active.

The only difference between the two goldens is the MANUAL_DETECTOR_REQUIRED
block. No existing golden moved: every other context case runs under the source
provider, whose hook-manifest list is empty, so none of them scan a manifest.
Also null IMPECCABLE_PROVIDER_ID in the case BASE_ENV so a recording machine's
value cannot leak. DELTAS.md records the intentional divergence from JS parity.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WaJv2c4oN8wS7Ttq4XRqyx

* Tests: stop two harness hangs from wedging a whole run

Two suites could hang forever and never print a tally, because the one
mechanism that could interrupt the wedged work was missing on both paths.

Hang 1 (bun run test / build-phase.test.mjs): the test's run() helper
spawned every child with spawnSync and no timeout. spawnSync blocks the
test worker's thread, so node's --test-timeout (an event-loop timer)
cannot interrupt a child that wedges (a fork/exec blocked on OS resources
under concurrency, a gate's comp-diff grandchild, or a stray browser
launch). Bound every child with spawnSync timeout + killSignal SIGKILL so
a wedge becomes a fast, named failure the next test survives.

Hang 2 (bun run test:skill-behavior): runTurn called generateText with no
client-side deadline, so a stalled provider stream kept the fetch (and the
whole node process) alive past the per-test timeout, producing no tally.
Attach a real AbortSignal (default 840s, under the 900s per-test cap):
on expiry the fetch aborts, the turn throws, and the scenario
fails-and-continues. The unref'd timer is cleared on completion.

Runner backstops: run-tests.mjs now spawns each command as a detached
process-group leader and enforces a per-suite wall-clock cap that SIGKILLs
the entire group (workers, grandchildren, browsers) on expiry, with
SIGINT/SIGTERM forwarded so Ctrl-C still reaps the tree. The core node
batch gets a finite --test-timeout (180s); skill-behavior gets a 60min
group cap. Env overrides: IMPECCABLE_TEST_WALL_CLOCK_MS,
IMPECCABLE_SKILL_BEHAVIOR_TURN_TIMEOUT_MS,
IMPECCABLE_BUILD_PHASE_RUN_TIMEOUT_MS.

Proof: bun run test green twice (~60s); scoped claude-sonnet-5
skill-behavior sweep terminates with a tally (20 tests, ~32min) where the
840s abort caught a wedged redesign turn and the sweep continued instead
of hanging.

Prepared with AI assistance (Claude Code).

* launcher: export skill-dir env before the IMPECCABLE_BIN exec (sync engine fix)

Prepared with AI assistance (Claude Code).

* Node-free swap: comp-fidelity verbs move to the engine

The four comp-fidelity scripts (comp-spec, comp-diff, font-match, build-phase)
and their six libs are ported into the impeccable-engine binary. This removes
the last Node .mjs from the skill: `git ls-files skill/scripts | grep '\.mjs$'`
now returns nothing.

- reference/new-work.md, reference/visualize.md, and the asset-producer /
  finish-reviewer agents now invoke `{{scripts_path}}/impeccable <verb>` instead
  of `node <script>.mjs`.
- Deleted the ten ported .mjs and the four JS unit tests that imported them
  (their behavior is now covered by the engine's Rust tests and the oracle);
  removed those files from scripts/test-suites.mjs.
- Added oracle cases (comp-*, font-match-*, build-phase-*) over a comp-basic
  workspace, recorded from the engine binary; the deterministic outputs are
  byte-identical to the JS the scripts left behind.
- docs/CLI-CONTRACT.md documents the four verbs, the CDP font rendering, and
  the runtime-resolved (never-committed) font-index catalog.

The font-index catalog JSON stays shipped in the skill (data/font-index.json);
the engine resolves it at run time and never vendors it.

Prepared with AI assistance (Claude Code).

* reorg: public plumbing for the in-repo Rust workspace and the two-release flow

The engine binaries move from the impeccable-dist channel to this repo's own
GitHub Releases (tag engine-v<ENGINE_VERSION>), and the closed detector the
engine links arrives as detector-v<DETECTOR_VERSION> releases on the same
repo. This commit wires the public side for that; the crates themselves land
in the next commit.

- Launcher (sh + cmd), npm shim, fetch-engine and check-engine-release now
  download from github.com/pbakaus/impeccable/releases/download/engine-v<X>/.
- release.mjs gains `engine`: verifies ENGINE_VERSION against the platform
  package pins and the detector release, tags, pushes; release-engine.yml
  builds the five targets and publishes. check-detector-release.mjs is the
  matching release-order guard (with tests).
- Root Cargo.toml (workspace, lto = false with the reason), rust-toolchain.toml
  (exact pin), DETECTOR_VERSION, /target ignored.
- CI: rust + rust-windows jobs and an oracle job that replays the goldens
  against a source build, warn-only until the first detector release exists;
  ci-test-plan exposes a `rust` output.
- docs/ENGINE.md (the crate map and the closed-detector mechanism) and the
  CLAUDE.md engine, release-order and rules sections.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* reorg C: the open Rust runtime joins this repo as one Cargo workspace

The engine no longer lives in a separate repo. `crates/` is a snapshot of the
open crates (foundation, core, common, context, live, hook, skills, comp,
comp-verbs, html, browser, detect, cli) plus `Cargo.lock`, taken as a git
archive of the engine repo at the commit that finished the boundary split.
None of that repo's history comes with it, and none of it should: the closed
half stays private.

The closed half is the rule engine. It ships as a prebuilt native archive per
target, `libimpeccable_detector.a`, published as a `detector-v<X>` GitHub
Release on this repo. `crates/core/build.rs` resolves and links it three ways:
`IMPECCABLE_DETECTOR_LIB=<dir>` for a local detector build, else the
`~/.impeccable/detector/<version>/<target>/` cache, else a download verified
against its `.sha256` sidecar. `crates/core` is a thin shim over a three-symbol
C ABI; nothing above it knows the boundary exists.

What changed versus the engine repo copy:

- Every crate manifest moves from `license-file.workspace` to
  `license.workspace` (this workspace declares Apache-2.0), and the workspace
  gains the `postcard` dependency the boundary encoding needs.
- The launcher contract test reads `skill/scripts/impeccable{,.cmd}` instead of
  a sibling `launcher/` dir, and `engine_binary` downloads from
  `github.com/pbakaus/impeccable/releases/download/engine-v<version>/` instead
  of the retired dist repo. No oracle golden carried the old URL, so no
  re-recording was owed.
- The tests that hunted for a public repo through `IMPECCABLE_PUBLIC_REPO`,
  `../impeccable-second` or a hardcoded home directory now resolve the root as
  `CARGO_MANIFEST_DIR/../..`, because they are in it. The env var stays as an
  override for an out-of-tree checkout.
- The in-page bundle (`detect-antipatterns-browser.js`, 2 MB of generated wasm
  glue) is no longer tracked. `crates/core/build.rs` resolves it beside the
  archive, hands the path to `impeccable_core::browser::IN_PAGE_BUNDLE_JS`, and
  live mode serves that. `scripts/check-detector-release.mjs` now requires it
  and its `.sha256` in a detector release.
- The live crate embeds `skill/scripts/live-browser*.js` and
  `modern-screenshot.umd.js` directly rather than through vendored copies, so
  the binary and the installed skill cannot drift.
- `crates/browser/assets/` (an unused second copy of the bundle) is gone.
- `tests/lib/engine-bin.mjs` also accepts `target/release/impeccable`, so a
  plain `cargo build --release -p impeccable` is enough to run `bun run test`.

Verified with the archive from a local detector build: `cargo test --workspace`
267 pass, oracle 795 pass / 0 fail / 0 missing, `bun run build` clean, the
default suite green, and the launcher's `engine-probe` handshake answering
through `skill/scripts/impeccable`.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* docs: bring RUNTIME-ENV and PORTING-GUIDE over with the runtime

They describe the binary's environment contract and the parity method every
crate here was ported with; both belong next to the crates now.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* core/build.rs: refuse a detector archive built by another rustc, in plain words

The archive links only against the exact rustc that built it; a mismatch
used to surface as pages of undefined std symbols from the linker. The
detector repo now writes rustc-version.txt next to the archive (and ships it
with the release); when it is present, build.rs compares it with its own
compiler and names both versions.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* build:extension: ship the wasm-core extension shell and vendor its detector from the detector release

`bun run build:extension` was broken on this branch: it still imported the
deleted JS engine (cli/engine/registry/antipatterns.mjs,
scripts/lib/browser-detector-bundle.js).

The shipped shell now matches the new design. The content script only
snapshots the DOM; an extension-owned offscreen document runs the
WebAssembly rule core over that snapshot, so the scanned page's CSP no
longer matters. That replaces the old approach of injecting a JS rules
bundle into the page. New files: extension/offscreen/offscreen.html, plus
the "offscreen" permission and a 'wasm-unsafe-eval' extension_pages CSP in
the manifest.

The manifest version stays at 1.3.3. The shell's own manifest carried
2.0.0; feature branches never bump versions, so the bump is a release step.

The five generated detector pieces (core.js, core_bg.wasm, snapshot.js,
overlay.js, antipatterns.json) are vendored at build time into the
gitignored extension/detector/ by the new scripts/lib/detector-bundle.mjs,
which resolves them the same three ways crates/core/build.rs resolves the
native archive: IMPECCABLE_DETECTOR_LIB/extension-detector/, the
~/.impeccable/detector/<DETECTOR_VERSION>/ cache, then a checksum-verified
download of detector-browser-bundle.zip from the detector release.
antipatterns.json is no longer regenerated here.

The zip packaging is unchanged. The Firefox variant still builds so
`web-ext lint` keeps covering the shared shell, but it cannot scan: Gecko
has no chrome.offscreen API. The build prints a one-line warning saying so.

Also here: a referenced-path check that fails the build when the manifest
or the service worker points at a file that is not in extension/, a
resolver unit test wired into the core suite, and the detector rule count
in the READMEs synced to the 61 the vendored registry carries.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* oracle: replay byte-for-byte on Linux too

The corpus was recorded on macOS and eight cases failed on ubuntu CI for
reasons that were all environment, not behavior:

- stageWorkspace returns the realpath of the staged dir. macOS's tmpdir is a
  symlink and two goldens (context-dir-override, live-accept-source-locked)
  had recorded that artifact; both re-recorded, reviewed in DELTAS.md. The
  source-locked case now actually exercises the lock it is named for.
- context-lowercase-product-name declares platforms: ['darwin', 'win32'];
  run.mjs skips such cases elsewhere and says so in the summary.
- The hook-project workspace's empty provider skill folders (.claude,
  .cursor) are now tracked with .gitkeep; git cannot track empty
  directories, so a fresh checkout had none and hooks on found nothing to
  repair.
- crates/live's read_dir_raw sorts entries by name: the goldens hold the
  order macOS returned, Linux returns hash order, and the source-candidate
  lists in live-commit output depended on it.

macOS: 795 pass, 0 fail. The Svelte accept cases additionally need the
public repo's node_modules on the machine that runs them (CI now installs
them).

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* oracle: mask <HOME> only at path boundaries (a short home like /root ate 'roots.json')

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* oracle: track live-html's dist/generated.html (the root dist/ ignore hid it from CI checkouts)

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* release-engine: darwin-x64 builds on macos-14 (macos-13 is retired)

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* Open the detector: the rule crates join the workspace, the C-ABI goes away

The detector is open source. The rules it ships were already public in this
repo's git history and in every npm tarball of the JS engine, so a closed
binary bought nothing it could keep; the moat is the service (the catalog,
the labs, the review pipeline), not the check functions. Keeping them behind
a prebuilt archive cost a C-ABI, an exact toolchain pin, a build-time
download, a second release to order ahead of every engine release, and a
serde layer that had to serve two encodings.

Deleted
- crates/core/src/ffi.rs, crates/core/build.rs, crates/core/tests/boundary.rs
  and the shim modules under src/checks and src/browser.
- crates/foundation/src/boundary.rs and the postcard dependency.
- DETECTOR_VERSION, scripts/check-detector-release.mjs and its test, the
  check:detector-release script, the detector gate and
  IMPECCABLE_SKIP_DETECTOR_CHECK in scripts/release.mjs.
- scripts/lib/detector-bundle.mjs and tests/detector-bundle.test.mjs (the
  vendoring path for the closed browser bundle).
- scripts/build-browser-detector.js and the build:browser script (a stub
  since the JS engine left the tree).
- xtask's detector-archive subcommand and its public-repo lookup.

Came back
- crates/core is now the rule logic itself: every check_* / scan_*, the
  browser adapters, the visual-contrast decisions. It re-exports foundation
  as before, so no consumer changed. Its vectors dispatcher is the union of
  both id tables again, and tests/vectors.rs replays the frozen vectors
  straight through it.
- crates/wasm and crates/xtask join the workspace. cargo xtask bundle builds
  the in-page bundle from browser-bundle/ plus the wasm core, writes
  dist/, refreshes the tracked crates/live/assets/detect-antipatterns-
  browser.js, and writes extension/detector/. bun run build:extension runs
  it instead of downloading.
- crates/live/assets/detect-antipatterns-browser.js is tracked again; live
  mode embeds it and serves it as /detect.js.
- Serde is back to plain derives: no is_human_readable branch in
  js::json_number, derived Serialize for Rgba and BrowserFinding with their
  skip_serializing_if attributes.
- profile.release has lto = "fat" again; rust-toolchain.toml is plain
  stable plus the wasm32 target. The rust, rust-windows and oracle CI jobs
  lose continue-on-error and can be required.

Verified
- cargo build --workspace --all-targets: clean, no warnings.
- cargo test --workspace: 346 pass, 0 fail (the 8 boundary tests are gone
  with the boundary).
- cargo build -p impeccable-wasm --target wasm32-unknown-unknown --release: ok.
- cargo xtask bundle && cargo xtask bundle --check: reproducible; the
  regenerated bundle is committed (it differs from the archived one, which
  was built with a pinned rustc and lto = false).
- cargo build --release -p impeccable: no linker warnings, 12.5 MB (the
  same source at lto = false is 13.1 MB).
- oracle: 795 pass, 0 fail, 0 accepted deltas, 0 missing goldens.
- bun run build, bun run build:extension, web-ext lint (0 errors,
  8 warnings), bun run test: 363 + 80 + 1 + 1 + 133 + 180 + 4 pass, 0 fail.
- impeccable detect --no-config --json tests/fixtures/antipatterns: 128.7 ms
  median of 5.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* core: doc comments drop the open/closed split

The rule crate and the foundation crate are both Apache-2.0 in one
workspace now, so "open", "closed" and "crosses the boundary" no longer
describe anything. Comments only.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* Rule packs: downstream crates add rules on all three engines; wasm detect surface

A crate that depends on this workspace can now add rules without forking
it. `impeccable_core::rule_pack::RulePack` (object-safe, Send + Sync +
Debug) carries a pack's registry rows plus three hooks that default to
empty: `check_text` for the text engine, `check_element_dom` and
`check_page_dom` for the browser driver. `impeccable_html::StaticRulePack`
adds `check_document` for the static engine, where the document model
belongs to the html crate and detect cannot name it.

The registry keeps ANTIPATTERNS as the built-in list; `registry::extend`
appends a pack's rows and every lookup consults them after the built-ins,
so a pack can never shadow a built-in id (extend panics on a collision and
is idempotent per slice). `all_antipatterns()` is the built-ins followed by
the registered rows.

Hook order, chosen so built-in output cannot move:

- detect_text: after every matcher, analyzer and the dedupe, before inline
  ignores, so `impeccable-disable` waives pack rules like built-in ones.
- detect_html_source: after the element rules, the design-system merge and
  the page passes, again before inline ignores. One pack pass per HTML
  file: the document hook when set, otherwise the text hook over the raw
  source, so a pack implementing both never reports twice.
- collect_browser_findings: the element hook at the end of the per-element
  loop through the same disabled-rules filter and group, the page hook
  after every built-in page pass with the same el-or-body attribution.

A pack travels on TextOptions / ScanOptions, DetectHtmlOptions
(static_rule_pack plus rule_pack), StaticHtmlEngine, and BrowserConfig
(serde-skipped: a pack is a Rust value, not JSON from the page). The
shipped binary installs none.

`crates/wasm --features detect` exposes the two file engines as JSON
exports for hosts that cannot exec the binary: `detect_text_json` and
`detect_html_source_json`, options `{ inlineIgnores?, designSystem? }`,
returning the findings array `detect --json` prints. `antipatterns_json`
now includes a pack's rows. `set_rule_pack` and `set_static_rule_pack` are
Rust-only, for a crate that links this one as an rlib.

Tests: registry extension and collision in foundation, one test pack per
engine (crates/core, crates/detect, crates/html tests) proving each hook
fires, that the built-in findings are unchanged, and that the waivers and
the disabled-rules list cover pack rules, plus the wasm export shapes.
Workspace tests 346 to 361, oracle 795/0 unchanged.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* docs: the cutover checklist under the open design

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* bundle: the page JS and the bundler become a library crate downstream packs can reuse

The in-page bundle, the extension pieces, the registry JSON and the
wasm-pack call were reachable only through `cargo xtask bundle`, which read
`browser-bundle/*.js` from the repo root. A downstream crate that links
impeccable-core + impeccable-wasm with its own rule pack had to copy the
page JS to produce a detector bundle for its module.

They move to `impeccable-bundle` (crates/bundle), which embeds every
`browser-bundle/*.js` with `include_str!` and exposes `in_page_bundle`,
`extension_pieces`, `registry_json`, `check_capture_contract` and
`wasm_pack_build`. Nothing writes files or exits the process; the caller
places the bytes. `registry_json` now reads `all_antipatterns()`, so an
installed pack's rows land in `antipatterns.json` too (no built-in change).

xtask becomes the workspace's caller and writes the same files to the same
places; `cargo xtask bundle` is byte-identical, tracked live asset included.
`IMPECCABLE_BUNDLE_SKIP_WASM_PACK` is the skip switch's new name, the old
`IMPECCABLE_XTASK_SKIP_WASM_PACK` still works.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* The immediate tier moves to the registry, and reaches wasm

The design hook's immediate-tier list is the set of rule ids worth fixing
at the edit site, and a downstream reviewer wants the same set to decide
how loudly a finding is reported. `impeccable-hook` is native-only, so the
list moves to `impeccable_core::registry` (the hook re-exports it) and the
`detect` feature gains `immediate_tier_rules_json()`.

The export is behind `detect`, which the in-page bundle does not build, so
the tracked browser asset is unchanged.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* docs: Pristine tracks the engine by revision pin, not npm

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* docs: the cutover checklist is maintainer-side, not part of the tree

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* Port: Fix flat type hierarchy false positives (#702)

Upstream sha 84728e9ce4.

The rule now reads rendered semantic roles and the dominant size per role
instead of the raw set of font sizes on the page, and it fires only when
every adjacent role step is under 1.25x.

- crates/core checks::rules gains TYPE_HIERARCHY_SELECTOR / MIN_ROLES /
  MIN_STEP_RATIO, typeHierarchyRole, dominantTypeRoleSize and
  checkFlatTypeHierarchySamples, the shared half of checks.mjs.
- crates/core browser::page_checks gets checkFlatTypeHierarchyFromDoc over
  the Dom trait, with the overlay skip selector checkTypography passes.
- crates/html page.rs gets the same walk over StaticDocument.
- crates/detect drops the source-only analyzer: flat-type-hierarchy leaves
  REGEX_ANALYZERS, the text-content analyzers shift to index 1, and
  analyzer_rule_id loses its first row.
- crates/html cascade defaults gain contentVisibility, and crates/foundation
  registry carries the reworded description.

Goldens re-recorded (the binary now matches origin/main's JS engine on every
one of these fixtures, verified by scanning the shared corpus with both):
glow, icon-tile-stack, layout, modern-color-borders, motion,
named-color-borders, numbered-section-markers, oklch-neon-text,
typography-should-flag, json and text.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* Port: Fix detector URL scans and advisory handling (#709)

Upstream sha fa44839f72.

Advisory handling. `severity` becomes the canonical registry field: the
`advisory` bool leaves `Antipattern`, `advisory_rule_ids` filters on
`severity == "advisory"`, and `derive_advisory_flag` stamps the finding's
`advisory: true` from the effective severity, so a per-finding promotion or
demotion carries the flag. The html and browser engines call it after their
severity override; the detect CLI and the hook accept either spelling; the
driver's serializer and the wasm registry exports derive it the same way.
em-dash-overuse moves from `advisory: true` to `severity: "advisory"`.

URL scans. `expand_joined_url_targets` splits an argv value that is entirely
whitespace-separated URLs and leaves paths with spaces alone. The browser
driver reads the readable linked-stylesheet corpus into the HTML pattern
corpora and resolves a finding's selector with `selector_nodes_for_live_dom`
/ `pseudo_element_host_selector`, so an unresolvable selector drops the
finding instead of keeping it page-level. The CSSOM walk itself is page JS:
`browser-bundle/15-snapshot.js` gains `__snapLinkedStylesheetText` (grouping
rules flattened, container-query probes, effective keyframes) and puts it in
the snapshot as `linkedCss`; `10-probe.js` exposes the same for the in-page
route, and the Dom trait carries `linked_stylesheet_text`.

Also `enclosing_css_selector` blanks comments before hunting the previous
declaration delimiter, and `check_typography` reports the uniquely most-used
family instead of every family over a 15% share.

Verified: `impeccable detect --no-config --json tests/fixtures/antipatterns`
is now byte-identical to `node cli/bin/cli.js` on an origin/main worktree
over the shared corpus (432 findings). The two changed lines in
tests/oracle/vectors/calls/rules.checks/checkHtmlPatterns.jsonl were
re-recorded by running origin/main's `checkHtmlPatterns` over the frozen
args; only the comment-polluted selector changed. Goldens re-recorded for
the advisory partition (config-*, fixture gemini/gpt-tells,
numbered-section-labels, scoped-ignore, shape-assembled-illustration,
color, em-dash-entities) and the help text, each cross-checked against the
JS on origin/main.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* Port: stop gray-on-color false positives on Tailwind opacity and JSX (#707)

Upstream sha 32b270f4e8.

`find_solid_chromatic_bg` replaces the bare `bg-<hue>-<n>` match in both
engines: a `bg-blue-500/10` tint is a wash, not a solid fill. The `regex`
crate has no lookahead, so the maximal digit run plus the word boundary is
matched as before and the byte after it is tested for `/`.

The text engine gains the JS-source scanner (`scan_js`) and the scope
helpers on top of it: `containing_markup_tag` keeps a gray text class from
pairing with a background in a sibling tag on the same line, and
`find_ternary_split` / `exclusive_class_scopes` split a `cond ? a : b`
class expression into its arms, recursing into nested ternaries, ignoring
`?.` and `??`, and keeping a common prefix and post-ternary suffix in every
arm. `MatchCtx` now carries the match offset the scope lookup needs.

Verified against origin/main's JS: all eleven cases from the upstream test
file plus a nested / nullish / suffix set produce byte-identical findings on
both engines; they are pinned as Rust unit tests in `regex_matchers` and
`checks::rules`. The shared fixture corpus stays byte-identical.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* Port: resolve unique --target names in monorepos (#706)

Upstream sha 8b326fc81e.

`resolve_target_path` / `find_unique_bare_target` in `crates/context`: a
`--target` that does not exist and reduces to a single path segment under
cwd resolves to the one workspace candidate with that name, so `--target a`
selects `apps/a`. A caller that already absolutized the name against cwd
(live and the other helpers do) takes the same route. Ambiguous or unknown
names still report the miss.

The context CLI resolves the target once and hands the resolved path to
`load_context`, replacing `path_exists_for_target`.

Oracle: four new `context-monorepo-target-bare-*` cases (bare name,
absolutized bare name, unknown name, bare name from a child cwd).
`context-monorepo-target-b-inherits` was re-recorded: resolving the target
before `load_context` changes its `surfaceBriefReason` from `not-found` to
`invalid-target`, which is what origin/main's `context.mjs` prints for the
same run.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* Port: Fix Next.js 16 CSP and parent hook discovery (#710)

Upstream sha 672ca29642.

CSP. `detect-csp` recognizes Next.js 16's `proxy.{ts,js,mjs}` request hook
beside `middleware.*`, but only where it sits at a project root or its `src/`
directory: the scan root itself, or a nested directory carrying a Next
project marker (a `next.config.*`, an `app` / `pages` dir, or a `next`
dependency). A same-named helper elsewhere in the tree is not the framework
hook.

Context. `find_git_boundary_root` gives `resolve_project` a git-boundary
notion: an explicit target inside its own repository resolves against that
repository, and an external target resolves against its own root, so caller
context never leaks across the boundary. `hook_manifest_search_roots`
replaces the cwd/projectRoot/repoRoot triple with a walk up from the
project root that stops at the first git boundary, and each root's own hook
lifecycle config is honored before its manifest counts as coverage.

Verified against origin/main's JS: nine `detect-csp` placements and five
hook-discovery scenarios (enclosing harness root, that root disabled,
sibling target, nested git target, markerless nested git target) produce
identical output.

Oracle: five `csp-proxy-*` cases and five `context-hook-*` /
`context-markerless-nested-git-target` cases. Four route-target goldens were
re-recorded because #710 resolves a `/`-prefixed target outside the
workspace; each was cross-checked against origin/main, and
`surface-brief-write-route` has a DELTAS entry for the one wording
difference (an unwritable filesystem root).

`tests/framework-fixtures.test.mjs`'s new proxy-placement block came in from
the merge importing the deleted `detectCsp`; it now drives `detect-csp`
through the binary like the rest of that file.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* Port: fail URL scans when the browser is unavailable (#711)

Upstream sha f2f9958be1e6a4ecb1fbd5ef1ae1b7d9c53e0d24 (Fix: fail URL scans
when the browser is unavailable).

`detect` gains an operational-failure flag. Exit 1 now means at least one
requested target could not be scanned, and it takes precedence over exit 2,
because findings from the targets that did scan do not turn a partial scan
into a complete one. The flag is set by an unreachable path, an unreadable
directory or file in a dir walk, a per-file scan that throws, a URL scan
that throws, and a shared-browser setup failure.

- `walk_dir_reporting` and `build_import_graph_reporting` take a read-error
  callback; the plain wrappers stay for callers that do not report. A file
  the graph could not read is skipped for the scan too.
- `SharedBrowser::ensure_launched` is the eager half of
  `createBrowserDetector()`: the CLI brings the browser up before the loop so
  a launch failure prints one `Error:` line and every URL target is skipped,
  instead of the lazy launch reporting once per URL.
- The static engine and the text path spell a permission failure the way Node
  does (`EACCES: permission denied, open '<path>'`), which is what
  `Error: cannot scan <target>: <message>` prints.
- Usage text and docs/CLI-CONTRACT.md carry the exit-status block.

Verified against origin/main's JS: missing target, missing target alongside a
flagging file, unreadable file, unreadable file beside a readable sibling,
unreadable directory, unreadable nested directory, a clean scan, and a
browser-unavailable scan of one and of two URLs all agree on exit code,
stdout and stderr (the browser-not-found wording is the pre-existing
puppeteer-vs-discovery difference).

Oracle: `detect-missing-file` and `detect-missing-file-json` re-recorded at
exit 1, plus new `detect-missing-file-with-findings`,
`detect-unreadable-file-json` and `detect-unreadable-file-in-dir`, each
cross-checked against origin/main. `detect-help` carries the new block.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* Port: OpenCode slash command bridge (#483)

Upstream sha 9736a9f6e9.

OpenCode does not honor `user-invocable: true` on SKILL.md frontmatter, so a
pinned skill never reaches its slash menu. `pin` now writes
`commands/impeccable-<cmd>.md` on the OpenCode command schema instead, and
skips `.opencode` in the SKILL.md loop so no unreachable
`.opencode/skills/<cmd>` is left behind. `unpin` mirrors it, marker-guarded,
and reaches both scopes even when the skill itself is gone.

`find_opencode_commands_dirs` covers the project-local dir when the project
has the skill and the user config dir when Impeccable is installed globally,
resolving that dir the way the CLI does (`OPENCODE_CONFIG_DIR` ->
`XDG_CONFIG_HOME/opencode` -> `~/.config/opencode`).

The build-tooling half of the upstream change (transformers, the OpenCode
command the build generates, `root-commands-sync`) came in with the merge and
needed no port.

Verified against origin/main's pin.mjs across seven scenarios (no harness,
project scope, user scope, a foreign command file, pin then unpin, unpin over
a foreign file, unpin with nothing pinned): identical stdout, identical file
sets, identical file contents apart from the one deliberate difference.

Oracle: five `pin-opencode-*` cases, with a DELTAS entry for the bridge body
naming the launcher rather than `node .../context.mjs`.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* Port: Fix Codex skill version metadata (#703)

Upstream sha 482368511a.

Codex's validator rejects unknown top-level keys, so the Codex and `.agents`
skills now carry `version` under the spec-defined `metadata:` map. Both
version readers learn the same parser: `parse_skill_frontmatter_version` in
`crates/context` (the boot update check) and `extract_version` in
`crates/skills` (`getSkillsVersion`). A metadata version wins, a legacy
top-level one still reads, only the map's own indent level counts, tabs count
as two spaces, and a comment line is skipped.

The build-tooling half (`versionInMetadata` on the two providers, the YAML
emitter's nested-object branch) came in with the merge.

Fourteen frontmatter shapes were recorded from origin/main's
`parseSkillFrontmatterVersion` and pinned as unit tests in both crates.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* Port: Fix skill subcommand help handling (#708)

Upstream sha a264199177.

`install`, `link`, `update` and `check` render static help before entering
any operational path, through both the top-level verb and the legacy `skills`
namespace, for `--help` and `-h` alike.

Verified against origin/main's `cli/bin/cli.js`: all six spellings produce
identical text and exit codes.

Oracle: a new `tests/oracle/cases/skills.mjs` with seven help cases. Only the
help paths are pinned there; every other installer path writes into harness
directories or reaches the network.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* Oracle: goldens for the three fixtures the merge added

`tests/fixtures/antipatterns/` gained `flat-type-hierarchy.html` (#702) and
`linked-url-patterns.{css,html}` (#709) with the merge, so the corpus
generator produced six `detect-fixture-*` cases with no goldens and the
directory-wide cases (`detect-dir-*`, `detect-scope-*`, `detect-no-advisory-*`)
moved.

Every golden here was recorded from the binary and then cross-checked against
`node cli/bin/cli.js` on an origin/main worktree over the same files: the six
per-fixture cases agree byte for byte in JSON and text, and a full scan of
`tests/fixtures/antipatterns` produces 432 findings identical on both engines
after normalizing the repo path.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* Port: the installer half of the OpenCode command bridge (#483)

Upstream sha 9736a9f6e9, the part of it that
lives in `cli/bin/commands/skills.mjs` rather than `pin.mjs`.

`copy_provider_commands` mirrors `copy_provider_skills` for a provider's
compiled `commands/` dir: project scope writes `<root>/<configDir>/commands`,
user scope writes the config dir OpenCode actually scans
(`OPENCODE_CONFIG_DIR` -> `XDG_CONFIG_HOME/opencode` -> `~/.config/opencode`),
and a pre-#406 global install at `~/.opencode/commands/` loses exactly the
files just written while siblings, symlinked dirs and home-rooted git repos
are left alone. It runs on install, on the reinstall refresh, on update, and
on link, which is the only path that can deliver the bridge to a linked
install.

`is_up_to_date` now compares the bundle's command files too, so an install
whose skills match but whose bridge is missing or drifted refreshes instead of
reporting success while the slash command stays absent. Only bundle-shipped
files are compared, so a pinned shortcut never affects freshness.

`tests/copy-provider-commands.test.js` arrived with the merge importing the
deleted `cli/bin/commands/skills.mjs`; its scenarios are ported to
`crates/skills/tests/provider_commands_tests.rs` (project scope, the three
user-scope dir resolutions, the legacy migration and its two guards, a
provider with no commands dir, and the four `isUpToDate` command-awareness
cases), and the file is removed and deregistered.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* CI: the first full run on the branch, three fixes

- The oracle harness masks the climb to the root a /-prefixed target
  produces (<UP_TO_ROOT>/): the number of `../` is the staged tmpdir's depth
  (7 on macOS, 2 on Linux), not the verb's behavior. surface-brief-path-slash
  re-recorded.
- Two context test helpers canonicalized their temp dir, which on Windows
  yields a \\?\ verbatim path that takes `/` literally; they strip the prefix
  like Node's realpathSync. The critique-storage identity test compares
  against the platform's own resolved path.
- Every job that drives the binary end to end (live-e2e smoke and full,
  accept-cleanup, the DeepSeek sweep, the remote CLI smoke) builds it from
  the checkout first; before, they looked for a release that does not exist.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* context tests: the verbatim-prefix strip spells the prefix once

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* context test: derive the snapshot identity from the verb's own resolver

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* context test: JSON-quote the snapshot identity, as the verb does

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* detect test: import resolution against platform-form paths

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* hook test: the stock cache path in the host's path form; Windows CI runs every crate's tests before failing

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* windows: skills tests pass on Windows

The two test temp roots kept `canonicalize`'s `\\?\` verbatim prefix, and the
kernel takes a verbatim path literally, so every `/`-joined path built under
them was an invalid filename. Strip it the way Node's `realpathSync` does.
The manifest, artifact and sibling-binary expectations hard-coded POSIX
separators for paths the product joins with the host's semantics; derive them
from `jsp::join` instead.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* windows: hook tests pass on Windows

Same verbatim-prefix strip on the test temp roots, plus expectations derived
from the helpers the product uses: cache keys and scan targets from
`jsp::join`, the config path in an admin message from the same relative form
`path.relative` renders, and the footer hints from `quote_command_arg`, which
deliberately switches to the double-quoted Windows form (#476 / #533). The
env lock no longer poisons the sibling tests when one of them fails.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* windows: html oracle goldens compare on Windows

The goldens pin the `<REPO>`-masked fixture path recorded on POSIX. Mask, then
render the remainder with `/` so a Windows checkout's backslashes are not read
as a finding difference. The goldens are untouched.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* windows: widen the live read-deadline test's margin

Timing only. The watchdog polls in 50ms steps against a ~15.6ms Windows system
timer while the crate's tests run in parallel, so the later request takes its
turn later there. The bound stays far under the 60s read timeout a
deadline-less read would hold the ticket for, so the test still distinguishes
the fix from the regression.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* windows: the request read deadline was not enforced on Windows

Windows does not unblock a `recv` already parked in the kernel when another
thread calls `shutdown` on the same socket, so the watchdog could not end a
silent connection's read and it held its turnstile place for the whole 60s
header timeout instead of the 10s deadline. Bound the read at the socket too,
which enforces the same deadline everywhere; the watchdog stays as the backstop
for a connection that trickles bytes without ever completing a request. POSIX
behavior is unchanged: the watchdog already closed the socket at the deadline.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* windows: hook tests derive the rest of the host path forms

The test temp helper's `write` returned a `PathBuf::join` result, which keeps
the `/` inside the relative part and so does not match what the hook resolves a
relative target to on Windows. Three more admin messages and the cache-root slug
pinned the POSIX spelling of paths the product renders with the host's
semantics (`path.resolve` also prefixes the current drive there).

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* windows: skills test fixtures name USERPROFILE, and the win32 quoted form

`os.homedir()` reads USERPROFILE on Windows, so a fixture home that named only
HOME sent the global installs into the runner's real profile. The Windows hook
command carries the JSON-quoted path, so a host path's backslashes arrive
escaped; derive the expectation instead of pinning the POSIX spelling.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* windows: check the oracle fixtures out with LF

A finding's snippet carries the scanned file's own bytes, and the goldens were
recorded from a POSIX checkout, so a CRLF checkout of a linked stylesheet reads
as a finding difference. The goldens are untouched.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* windows: check the grok global-install manifests as JSON

The Windows hook command carries the JSON-quoted launcher path, so the path's
backslashes are escaped once inside the command and again by the manifest file
itself. Read the manifest as JSON and look for either quoting form instead of
counting escaping layers in a raw substring match.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* npm shim: refuse a download with no verifiable sidecar

The skill launcher and `impeccable install` both fail closed when a
release binary's `.sha256` sidecar cannot be fetched or carries no hash:
they refuse rather than cache an unverified binary. The npm shim did not.
It only compared when a hash was present, so a 404, an empty sidecar, or
a truncated one all wrote the payload straight into
`~/.impeccable/bin/<version>/` and exec'd it.

It now refuses in the same cases, with wording that matches the launcher,
and writes nothing until the hash matches, so a refusal leaves the cache
dir empty. IMPECCABLE_BIN and the optional-dependency lookup are
untouched: neither downloads.

tests/cli-shim.test.mjs runs the real shim against a throwaway HTTP
server and covers missing, empty, and mismatched sidecars, plus the
matching-sidecar and IMPECCABLE_BIN paths. The two refusal cases fail
against the old shim.

Co-Authored-By: Claude Code <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* Oracle fixture: declare the vite plugin the web workspace imports

`live-workspaces/apps/web/vite.config.js` imports `@vitejs/plugin-react`
but the workspace's package.json listed only `vite`. No oracle case
installs or evaluates that config (the three `live-boot-workspaces-*`
cases stop at root resolution), so the fixture was never wrong at
runtime, only self-contradictory to read. Adding the devDependency keeps
the goldens byte-equal.

Co-Authored-By: Claude Code <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* Vectors: drop the 12,208 byte-identical repeat lines

The recorder deduplicated by arguments per run, not across runs, so the
frozen call snapshot arrived with 12,208 lines (43% of 28,266) that
repeat an earlier line byte for byte. Every one re-asserts what its first
occurrence already asserts, and `crates/core/tests/vectors.rs` replays
line by line with no count anywhere, so removing them changes nothing it
checks: the replay still reports 8,321 pass, 0 fail.

Duplicates were removed with `awk '!seen[$0]++'`, keeping first
occurrences and file order, and every changed file was checked to equal
that transform of its old contents. No line was added, reordered, or
rewritten, and no vector file gained or lost a distinct call. The tree
drops from 9.2 MB to 5.7 MB.

Co-Authored-By: Claude Code <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* Fix: restore the live overlay's disabledValues waivers in the engine

The JS engine applied value-level ignore waivers at the tail of
collectBrowserFindings: `_disabledValues` read the entries the live
overlay resolved for the page (skill/scripts/live-browser-ignores.js
sends them as config.disabledValues), and filtered the assembled
findings by the value each one reported, with design-system-color
compared by color value rather than by spelling so a hex waiver
suppressed a finding the browser reported as rgb(...). The Rust port
dropped that stage: `disabledValues` appeared nowhere in the workspace
or in browser-bundle, so a project entry like

    [detector]
    ignoreValues = [{ rule = "overused-font", value = "geist mono" }]

stopped reaching the overlay. The rules the CLI and the edit hook waive
kept drawing markers and counting toward the badge.

Restore it end to end:

* BrowserConfig gains `disabled_values`, parsed leniently so a
  hand-edited __IMPECCABLE_CONFIG__ entry of the wrong shape is dropped
  rather than failing the whole config, the way the JS filter did.
* The driver applies the waivers after every pass, so a rule pack's
  findings are covered the same way the built-in ones are, honoring the
  entries only in extension mode exactly as the JS read them. The
  normalizer, the value extractor (including the rule that bounce-easing
  without a direct ignoreValue offers no value) and the hex/rgb color
  key are ported alongside it.
* collectConfigJson in the in-page bundle and configJson in the
  offscreen bundle forward the field. The extension never sends it, so
  its behavior is unchanged.

Coverage: two driver unit tests (suppression by font value, by hex
waiver across the rgb spelling, and the extension-mode gate; plus the
config parse and the normalizers), a skipScan test that pins the empty
shape for every stage the core produces, and
crates/wasm/tools/disabled-values-check.mjs, a browser-backed check
ported from the retired tests/detect-antipatterns-browser.test.mjs case
that the swap left without a replacement. Against the previous bundle it
fails on exactly the three waiver assertions and passes the skipScan
one, which is the shape of the regression.

Two related review findings were checked and are not defects. skipScan
is gated on extension mode in both the driver and the bundle, which is
what the JS did (index.mjs#skipScanActive), and the live overlay runs in
extension mode: live-browser.js sets `s.dataset.impeccableExtension` on
the injected /detect.js tag, and the overlay's whole detect toggle
travels over the postMessage loop that 50-scan.js installs only under
EXTENSION_MODE. The visual contrast stage is not leaking either:
collectBrowserFindingsAsync and scan() both consult skipScanActive(),
and the offscreen path skips its visual pass on config.skipScan.

The tracked live asset is regenerated (cargo xtask bundle). The oracle
replays with zero unreviewed differences: the new field defaults empty
and the filter is inert without it, and no CLI path sets extension mode.

AI-assisted change: implemented with Claude Code under maintainer
direction.

Co-Authored-By: Claude Code <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* Shim test: run from a staged copy and prove the download happened

The three fail-closed cases cleared IMPECCABLE_BIN and pointed
IMPECCABLE_HOME at a temp dir, but locate() prefers an installed
@impeccable/cli-<os>-<arch> before the cache or a download. Those
platform packages ship with every engine release and are a merge
prerequisite, so as soon as one is installed under the repo the cases
would resolve it and go green without fetching anything. Confirmed by
hand: with a platform package staged in node_modules, running the shim
against an unreachable download base still exits 0 from the package.

The shim now runs from a throwaway copy at <tmp>/cli/bin/cli.js beside a
copy of the repo's package.json, with no node_modules on the lookup path
above it, so require.resolve of the platform package fails the way it
does on a machine without the optional dependency. Production code is
unchanged; there is no test-only branch in the shim.

The fixture server also records every request now, and each download case
asserts the asset and sidecar URLs were actually requested, so a future
lookup shortcut fails loudly instead of passing on an untested path. A
sixth case installs a fake platform package next to the staged shim and
asserts the shim prefers it with the server untouched, which pins the
precedence the other cases depend on being absent.

Co-Authored-By: Claude Code <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* Live: the loader now hands off when the resume is the arrival

The overlay could sit in its generating shader over a DOM that already
held all three variants, and only a page refresh cleared it (#719).

The server's generation preflight runs live-wrap with
--defer-source-write, so the wrapper and every variant reach the DOM in a
single HMR batch. The deferred-wrapper scout is constructed at init and
the variant MutationObserver at Go; observer callbacks run in
construction order, so on that batch the scout resumes first and
resumeSession, not the observer, is the transition into CYCLING. It set
the state and the bar but never called hideShaderOverlay(), so the frozen
capture of the original stayed painted over the variants. It also
reported browser_resumed, which does not count as publication progress,
and then disconnected and re-created the observer, dropping the records
that observer had already queued for the same batch, so variants_ready
never fired at all.

resumeSession now finishes the same transition the observer does (shader
down, inline edit off, insert session finalized, params panel rebuilt)
and reports variants_ready when it already holds every variant. The
deferred scout names itself in the journal as
browser_resumed_deferred_wrapper, so the two resume paths are no longer
indistinguishable.

Wrapper resolution goes through findVariantsWrapper, which prefers a
wrapper that actually holds non-original variants. A target inside a
.map() renders one wrapper per item, and an agent that relocates the
wrapper out of the shared primitive live-wrap scaffolded leaves an empty
one behind; first match could pin either and strand the session at 0/N.
With zero or one match this is the querySelector it replaces.

Tests: waitForCycling now asserts the generating shader is gone once the
bar cycles, across every runtime fixture (it failed on vite8-react-plain
before this change and passes after), marked no-retry so the reload
recovery cannot hide it. Source-shape tests pin the transition, the
variants_ready report, and the wrapper preference.

Co-Authored-By: Claude Code <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* Live server: stop ends the process, SSE skips the mutation lane

Two Rust-only regressions found while investigating #719, both of which
can leave a tab waiting on a broadcast that never comes.

/stop ran shutdown() but never set shutting_down, and the accept loop
only breaks on that flag or a signal, so a stopped server kept its port
and kept answering while its server.json was already deleted. The next
`impeccable live` then booted a second server on another port and a tab
could reattach to the zombie. Node's shutdown() ended in process.exit(0).
The flag is now set after the response is written, so `stop` still reads
"stopping" instead of a reset connection, and the accept loop (already
non-blocking) exits on its next pass.

GET /events took a turnstile ticket and waited its turn before
registering, even though handle_sse releases that ticket two statements
later and needs no arrival ordering. A peer that stalls mid-request holds
the lane for the whole READ_REQUEST_DEADLINE, so a reconnecting stream
could sit unregistered for up to 10 seconds (measured 9.71s against 0.00s
on Node); broadcast is fire-and-forget, so a `done` landing in that
window reaches an empty client set and is gone. Registering early can
only make a stream see more broadcasts. The one cost is that the
connected frame's activeSessions snapshot may miss a mutation still in
flight, and the browser treats that snapshot as a hint. Preflights still
take a turn: answering those out of order reorders the POSTs the browser
issues behind them.

The route classification moved into releases_ticket_up_front so it can be
unit tested. tests/live-server-leak.test.mjs gains a guard that a stopped
server's pid is gone and its port is free.

Co-Authored-By: Claude Code <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* Live: the shader teardown can no longer race its own construction

The new cycling assertion caught a real defect on CI: vite8-react-insert
reached CYCLING with #impeccable-live-shader still painted over the page.

showShaderOverlay is async. It appends its canvas synchronously, then
awaits createImageBitmap and finishes the GL setup before it publishes
shaderState. hideShaderOverlay returned early on a null shaderState, so a
teardown that landed inside that window did nothing, and the construction
then published itself over a session that had already left GENERATING,
with no teardown left to run. The scroll tick kept repositioning it,
which is why the CI page.html shows the canvas sized from the capture
rect but styled to the cycling anchor.

Every teardown now bumps a shader epoch before it does anything else, and
a construction pins the epoch it owns and abandons its canvas (releasing
the GL context) at every point past an await and before any publish,
including both bitmap-fallback publishes. A teardown also drops a shader
node that no shaderState owns, so an already-orphaned canvas cannot
survive one.

Reproduced by widening the append-to-publish window: with a 400ms delay
after uiAppend, vite8-react-insert failed with the CI error and the probe
showed the teardown arriving at CYCLING with shaderState still null.
The same run passes with this change, as does a 1500ms window on insert
and plain. Locally that window is about 4ms, which is why it only showed
on a slower runner.

The four remaining setLiveState('CYCLING') sites that did not lower the
loader now do: the SSE done handler (the one route that can reach CYCLING
from GENERATING), the Svelte republish remount, and the two accept
failure recoveries.

The e2e assertion already waits up to 5s for the shader to clear, so it
was never racing a legitimate teardown; it is left as it is.

Co-Authored-By: Claude Code <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* Live: every active-session wrapper lookup goes through the resolver

Cursor Bugbot on #720: findVariantsWrapper alone was not enough.
resolveBarAnchor, the visible-variant element, mountedParameterCount,
readVisibleVariantFromDOM, showVariantInDOM, the source injection, and
the whole accept path still took the first [data-impeccable-variants]
match, so in the relocated-wrapper case Tune never bound and the bar kept
anchoring to the empty scaffold even after the resume reached CYCLING.

Thirteen call sites now resolve through findVariantsWrapper. The resolver
split in two so a missing id cannot silently widen the lookup to any
session: findVariantsWrapper(sessionId) returns null without an id, and
findAnyVariantsWrapper() is the entry point for the two resume paths that
have no id yet. Both share pickPopulatedVariantsWrapper, which is the old
querySelector whenever there are fewer than two matches.

Discard cleanup now hides every duplicate wrapper rather than the first,
since a target inside a `.map()` renders one per item and hiding one left
the rest of the discarded variants on screen.

What still takes a raw first match is deliberate: bare existence checks,
selector strings for stylesheets and observers (which want to cover every
match), querySelectorAll sweeps, the parsed source document, and the
Svelte component wrapper, which holds no variant children at all. The
source-shape test pins that exact set by name, so a new raw lookup fails
until it is either routed through the resolver or justified there.

Co-Authored-By: Claude Code <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* Live: a discard releases every wrapper it hid

Bugbot on #720: the non-restoreOriginal discard now hides every matching
wrapper, but the delayed fallback still released only the first
querySelector hit. A target inside a `.map()` renders one wrapper per
item, so the rest stayed at display:none and their original content never
came back on the static and missed-HMR flows that fallback exists for.

The hide, the existence checks, and the release now all speak about the
same set. discardedWrappers(sessionId) is the one place that collects it;
releaseDiscardedStaticWrappers takes the stylesheet down once and
releases each wrapper; releaseDiscardedStaticWrapper drops its sessionId
argument and just unwinds the node it is given. The HMR-ownership
decision still reads the first wrapper, which is fair: duplicates all
render from one source element, so ownership is uniform across them. The
reload branch is unchanged because a reload restores every original at
once.

Covered by a source-shape test rather than an e2e scenario:
hasFrameworkHmrOwnership is true for every React, Vue, and Svelte runtime
fixture, so all of them take the watcher path and none can reach the
static release. The existing framework-ownership guards in the same file
move to the new shape and keep their intent, including the one that says
only non-discard cleanup may blank the wrapper while waiting for HMR.

Co-Authored-By: Claude Code <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* Release: publish the npm platform packages in one command

bun run release:platform-packages downloads each engine-v<ENGINE_VERSION>
binary with its .sha256 sidecar (required; nothing unverified is
published), stages the package from cli/platform-packages/<target> with
the version stamped, the executable at bin/ and the repo LICENSE, and
runs npm publish --access public. Targets already on the registry are
skipped so a re-run resumes after a partial failure. Preconditions:
package.json pins equal ENGINE_VERSION and npm is logged in.

Co-Authored-By: Claude Code <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* release-engine: pin checkout, upload-artifact and download-artifact at v7

The v4 pins target Node 20, which the runner now deprecates and forces
onto Node 24 with a warning on every step. The rest of the workflows
already use v7.

Co-Authored-By: Claude Code <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* Tests: make the temp-dir helpers unique under a coarse clock

Windows' system clock is coarse enough that two parallel tests could get
the same pid-plus-nanoseconds directory name and then remove each
other's files (rust-windows: close_verb_round_trip_and_ownership,
NotFound). A per-process counter is appended to the name.

Co-Authored-By: Claude Code <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

* Tests: declare the temp-dir counter in the hook cache-root tests

The previous commit referenced TMP_SEQ there without defining it.

Co-Authored-By: Claude Code <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

---------

Co-authored-by: Claude <noreply@anthropic.com>
This commit is contained in:
Paul Bakaus
2026-09-04 10:42:45 -07:00
committed by GitHub
co-authored by Claude
parent 695df68a58
commit e2ff625b63
1676 changed files with 161105 additions and 110026 deletions
+80 -95
View File
@@ -1,102 +1,87 @@
#!/usr/bin/env node
// `impeccable` npm shim: finds the platform binary and execs it with argv.
// Order: $IMPECCABLE_BIN, the @impeccable/cli-<os>-<arch> optional dependency,
// the version-pinned user cache (~/.impeccable/bin/<version>/), then a
// download into that cache from the public release channel.
import { spawnSync } from 'node:child_process';
import { createHash } from 'node:crypto';
import fs from 'node:fs';
import { createRequire } from 'node:module';
import os from 'node:os';
import path from 'node:path';
/**
* Impeccable CLI
*
* Usage:
* npx impeccable detect [file-or-dir-or-url...]
* npx impeccable ignores <list|add-file|add-value|remove-...>
* npx impeccable help|install|update
* npx impeccable --help
*/
const require = createRequire(import.meta.url);
const pkg = require('../../package.json');
const OS = { darwin: 'darwin', linux: 'linux', win32: 'windows' }[process.platform] || process.platform;
const ARCH = { arm64: 'arm64', x64: 'x64' }[process.arch] || process.arch;
const TARGET = `${OS}-${ARCH}`;
const EXE = OS === 'windows' ? 'impeccable.exe' : 'impeccable';
const PLATFORM_PKG = `@impeccable/cli-${TARGET}`;
// The engine version travels as the pinned optionalDependency range.
const VERSION = String(pkg.optionalDependencies?.[PLATFORM_PKG] || Object.values(pkg.optionalDependencies || {})[0] || '').replace(/^[^\d]*/, '');
const CACHE_ROOT = process.env.IMPECCABLE_HOME || path.join(os.homedir(), '.impeccable');
const CACHED = path.join(CACHE_ROOT, 'bin', VERSION, EXE);
const BASE = (process.env.IMPECCABLE_DOWNLOAD_BASE || 'https://github.com/pbakaus/impeccable/releases/download').replace(/\/$/, '');
const URL = `${BASE}/engine-v${VERSION}/impeccable-${TARGET}${OS === 'windows' ? '.exe' : ''}`;
import { readFileSync, existsSync } from 'node:fs';
import { join, dirname, resolve } from 'node:path';
import { fileURLToPath } from 'node:url';
const __dirname = dirname(fileURLToPath(import.meta.url));
const SKILL_COMMANDS = new Set(['help', 'install', 'link', 'update', 'check']);
// Is this a detect target (the `npx impeccable src/` shorthand) or a mistyped
// command? Flags, URLs, path-shaped args, and real files/dirs (e.g. an
// extension-less `Dockerfile`) are targets; anything else is an unknown command.
function looksLikeDetectTarget(arg) {
const isFlag = arg.startsWith('-');
const isUrl = /^https?:\/\//i.test(arg);
const isPathShaped = arg.includes('/') || arg.includes('\\') || arg.includes('.');
const isExistingPath = existsSync(resolve(arg));
return isFlag || isUrl || isPathShaped || isExistingPath;
function exists(p) { try { return !!p && fs.statSync(p).isFile(); } catch { return false; } }
function fromPackage() {
try { return path.join(path.dirname(require.resolve(`${PLATFORM_PKG}/package.json`)), 'bin', EXE); } catch { return null; }
}
async function download() {
if (!VERSION) return null;
const res = await fetch(URL, { redirect: 'follow' });
if (!res.ok) return null;
const buf = Buffer.from(await res.arrayBuffer());
// Fail closed, like the skill launcher and `impeccable install`: a sidecar
// that cannot be fetched, or that carries no hash, refuses the download
// instead of caching an unverified binary. Nothing is written until the
// hash matches, so a refusal leaves the cache dir untouched.
const sum = await fetch(`${URL}.sha256`, { redirect: 'follow' }).then(r => (r.ok ? r.text() : ''), () => '');
const expected = sum.trim().split(/\s+/)[0].toLowerCase();
if (!expected) {
throw new Error(
`cannot verify ${URL} against ${URL}.sha256 (sidecar unavailable or empty); `
+ 'refusing the unverified download',
);
}
if (createHash('sha256').update(buf).digest('hex') !== expected) {
throw new Error(`checksum mismatch downloading ${URL}`);
}
fs.mkdirSync(path.dirname(CACHED), { recursive: true });
const tmp = `${CACHED}.part.${process.pid}`;
try {
fs.writeFileSync(tmp, buf, { mode: 0o755 });
fs.renameSync(tmp, CACHED);
} catch (err) {
try { fs.rmSync(tmp, { force: true }); } catch { /* best effort */ }
throw err;
}
return CACHED;
}
async function locate() {
const envBin = process.env.IMPECCABLE_BIN;
if (exists(envBin)) return envBin;
const fromPkg = fromPackage();
if (exists(fromPkg)) return fromPkg;
if (exists(CACHED)) return CACHED;
return download().catch((err) => { process.stderr.write(`impeccable: ${err.message}\n`); return null; });
}
async function main() {
const args = process.argv.slice(2);
const command = args[0];
if (!command || command === '--help' || command === '-h') {
console.log(`Usage: impeccable <command> [options]
Commands:
detect [file-or-dir-or-url...] Scan for UI anti-patterns and design quality issues
ignores Manage detector ignore rules, files, and values
help List all available skills and commands
install Install impeccable skills into your project or global harness
link Symlink skills from a local checkout or submodule
update Update skills to the latest version
check Check if skill updates are available
Options:
--help Show this help message
--version Show version number
Compatibility:
impeccable skills <command> Legacy namespace; still supported.`);
process.exit(0);
}
if (command === '--version' || command === '-v') {
const pkg = JSON.parse(readFileSync(join(__dirname, '..', '..', 'package.json'), 'utf8'));
console.log(pkg.version);
process.exit(0);
}
if (command === 'detect') {
process.argv = [process.argv[0], process.argv[1], ...args.slice(1)];
const { detectCli } = await import('../engine/detect-antipatterns.mjs');
await detectCli();
} else if (command === 'ignores' || command === 'ignore') {
const { run } = await import('./commands/ignores.mjs');
await run(args.slice(1));
} else if (command === 'skills') {
const { run } = await import('./commands/skills.mjs');
await run(args.slice(1));
} else if (SKILL_COMMANDS.has(command)) {
const { run } = await import('./commands/skills.mjs');
await run(args);
} else if (looksLikeDetectTarget(command)) {
// Default: treat as detect arguments (allow `npx impeccable src/` shorthand)
process.argv = [process.argv[0], process.argv[1], ...args];
const { detectCli } = await import('../engine/detect-antipatterns.mjs');
await detectCli();
} else if (command === 'init') {
// The follow-up mistake from issue #472: `/impeccable init` belongs in an AI
// coding agent's chat, and a user who typed it into their shell is likely to
// retry it here as `npx impeccable init`.
console.error(`"init" is not a CLI command. Type /impeccable init in your AI coding agent's chat (Claude Code, Cursor, Codex, ...), not in this terminal.`);
process.exit(1);
} else {
// An unknown bareword: a mistyped command (or an old cached version run
// against newer docs). Fail loudly instead of silently statting it as a path.
console.error(`Unknown command: "${command}"\n\nTo see a list of supported commands, run:\n impeccable --help`);
process.exit(1);
}
const bin = await locate();
if (!bin) {
process.stderr.write(
`impeccable: no binary for ${TARGET}. Install ${PLATFORM_PKG}@${VERSION}, set IMPECCABLE_BIN, `
+ `or download impeccable-${TARGET} v${VERSION} from ${BASE} into ${CACHED}.\n`,
);
process.exit(127);
}
main().catch(error => {
if (error?.code === 'IMPECCABLE_PROMPT_ABORT') {
console.log('\nAborted.');
process.exit(130);
}
console.error(error?.message || error);
process.exit(1);
const result = spawnSync(bin, process.argv.slice(2), {
stdio: 'inherit',
env: { IMPECCABLE_SELF: 'npx impeccable', ...process.env },
});
if (result.error) {
process.stderr.write(`impeccable: failed to run ${bin}: ${result.error.message}\n`);
process.exit(127);
}
process.exit(result.status === null ? 1 : result.status);
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@@ -1,355 +0,0 @@
import path from 'node:path';
import {
getConfigPath,
getLocalConfigPath,
normalizeIgnoreValue,
readDetectionConfig,
readRawDetectionConfig,
writeDetectionConfig,
extractFindingIgnoreValue,
} from '../../lib/impeccable-config.mjs';
const ACTION_ALIASES = new Map([
['status', 'list'],
['ls', 'list'],
['list', 'list'],
['add-rule', 'add-rule'],
['ignore-rule', 'add-rule'],
['add-file', 'add-file'],
['ignore-file', 'add-file'],
['add-value', 'add-value'],
['ignore-value', 'add-value'],
['update-value', 'add-value'],
['remove-rule', 'remove-rule'],
['rm-rule', 'remove-rule'],
['remove-file', 'remove-file'],
['rm-file', 'remove-file'],
['remove-value', 'remove-value'],
['rm-value', 'remove-value'],
['clear', 'clear'],
]);
function printUsage() {
console.log(`Usage: impeccable ignores <action> [options]
Manage detector ignores in .impeccable config.
Actions:
list Show merged, shared, and local ignores
add-rule <rule> [--all-values] Ignore a rule
add-file <glob> Ignore files by glob
add-value <rule> <value> Ignore one rule/value pair
remove-rule <rule> Remove a rule ignore
remove-file <glob> Remove a file ignore
remove-value <rule> <value> Remove a rule/value ignore
clear Clear detector ignores in the selected scope
Scope:
--shared Write .impeccable/config.json (default)
--local Write .impeccable/config.local.json
--all For remove/clear, apply to shared and local
Value options:
--file <glob> Scope add-value/remove-value to a file glob
--reason <text> Store or update a reason on add-value
Examples:
impeccable ignores add-file "src/legacy/**"
impeccable ignores add-value overused-font Inter --reason "Brand font"
impeccable ignores add-value design-system-color "*" --file "src/demo.css"
impeccable ignores remove-value overused-font Inter`);
}
function parseScope(args, { allowAll = false } = {}) {
const rest = [];
let local = false;
let shared = false;
let all = false;
for (const arg of args) {
if (arg === '--local') local = true;
else if (arg === '--shared') shared = true;
else if (arg === '--all') all = true;
else rest.push(arg);
}
if ([local, shared, all].filter(Boolean).length > 1) {
throw new Error(`Pass only one scope flag: --shared${allowAll ? ', --local, or --all' : ' or --local'}`);
}
if (all && !allowAll) throw new Error('--all is only supported for remove and clear actions');
return { local, all, rest };
}
// An empty glob used to be dropped by filter(Boolean), so `--file=` reported
// success and wrote an entry with no files: the user asked to scope a rule to one
// file and silently got the project-wide suppression instead. Refuse it.
function requireGlob(raw, flag) {
const glob = String(raw ?? '').trim();
if (!glob) throw new Error(`${flag} requires a non-empty glob`);
// A following flag is not a glob. `--file --reason "why"` consumed `--reason`
// as the scope and left the reason text to fold into the value, storing
// value="* why" files=["--reason"] and reporting success. Same silent-no-op
// class as an unknown flag folding into the value; refuse it the same way.
if (glob.startsWith('--')) throw new Error(`${flag} requires a glob, got the flag ${glob}`);
return glob;
}
function parseValueArgs(args, { allowUnscopedWildcard = false } = {}) {
const positionals = [];
const files = [];
let reason = '';
for (let i = 0; i < args.length; i++) {
const arg = String(args[i] || '');
if (arg === '--reason') {
const chunks = [];
while (i + 1 < args.length && !String(args[i + 1]).startsWith('--')) chunks.push(args[++i]);
reason = chunks.join(' ').trim();
} else if (arg.startsWith('--reason=')) {
reason = arg.slice('--reason='.length).trim();
} else if (arg === '--file' || arg === '--files') {
if (i + 1 >= args.length) throw new Error(`${arg} requires a glob`);
files.push(requireGlob(args[++i], arg));
} else if (arg.startsWith('--file=')) {
files.push(requireGlob(arg.slice('--file='.length), '--file'));
} else if (arg.startsWith('--files=')) {
files.push(requireGlob(arg.slice('--files='.length), '--files'));
} else if (arg.startsWith('--')) {
throw new Error(`Unknown add-value flag: ${arg}`);
} else {
positionals.push(arg);
}
}
const [rule, ...valueParts] = positionals;
const value = normalizeIgnoreValue(valueParts.join(' '));
if (!rule || !value) throw new Error('Pass a rule id and value, e.g. impeccable ignores add-value overused-font Inter');
// Sorted: the dedup key compares the files array, so an unsorted scope made
// `--file b.css --file a.css` a different entry from `--file a.css --file b.css`.
const scopedFiles = Array.from(new Set(files.filter(Boolean))).sort();
if (value === '*' && scopedFiles.length === 0 && !allowUnscopedWildcard) {
throw new Error('Wildcard value ignores must be scoped with --file <glob>.');
}
return {
rule: String(rule).trim().toLowerCase(),
value,
files: scopedFiles,
reason,
};
}
function formatValues(values) {
if (!values.length) return '(none)';
return values
.map((entry) => {
const fileSuffix = Array.isArray(entry.files) && entry.files.length
? ` [${entry.files.join(', ')}]`
: '';
const reasonSuffix = entry.reason ? ` - ${entry.reason}` : '';
return `${entry.rule}=${entry.value}${fileSuffix}${reasonSuffix}`;
})
.join(', ');
}
function formatConfig(label, config) {
return [
`${label}:`,
` ignoreRules: ${config.ignoreRules.length ? config.ignoreRules.join(', ') : '(none)'}`,
` ignoreFiles: ${config.ignoreFiles.length ? config.ignoreFiles.join(', ') : '(none)'}`,
` ignoreValues: ${formatValues(config.ignoreValues)}`,
` designSystem: ${config.designSystem?.enabled === false ? 'disabled' : 'enabled'}`,
].join('\n');
}
function list(cwd) {
const merged = readDetectionConfig(cwd);
const shared = readRawDetectionConfig(cwd);
const local = readRawDetectionConfig(cwd, { local: true });
return [
'Impeccable detector ignores',
` shared file: ${path.relative(cwd, getConfigPath(cwd)) || getConfigPath(cwd)}`,
` local file: ${path.relative(cwd, getLocalConfigPath(cwd)) || getLocalConfigPath(cwd)}`,
'',
formatConfig('Merged', merged),
'',
formatConfig('Shared', shared),
'',
formatConfig('Local', local),
].join('\n');
}
function readScopeConfig(cwd, local) {
return readRawDetectionConfig(cwd, { local });
}
function writeScopeConfig(cwd, config, local) {
return writeDetectionConfig(cwd, config, { local });
}
function parseRuleArgs(args) {
const positionals = [];
let allValues = false;
for (let i = 0; i < args.length; i++) {
const arg = String(args[i] || '');
if (arg === '--all-values') {
allValues = true;
} else if (arg === '--reason') {
while (i + 1 < args.length && !String(args[i + 1]).startsWith('--')) i++;
} else if (arg.startsWith('--reason=')) {
// Accepted for symmetry with add-value; ignoreRules stores ids only.
} else if (arg.startsWith('--')) {
throw new Error(`Unknown add-rule flag: ${arg}`);
} else {
positionals.push(arg);
}
}
return {
rule: String(positionals[0] || '').trim().toLowerCase(),
allValues,
};
}
function addRule(cwd, args) {
const { local, rest } = parseScope(args);
const { rule, allValues } = parseRuleArgs(rest);
if (!rule) throw new Error('Pass a rule id, e.g. impeccable ignores add-rule side-tab');
if (rule === 'overused-font' && !allValues) {
throw new Error('overused-font is value-specific by default. Use add-value overused-font <font>, or add-rule overused-font --all-values for broad suppression.');
}
const config = readScopeConfig(cwd, local);
if (!config.ignoreRules.includes(rule)) config.ignoreRules.push(rule);
const target = writeScopeConfig(cwd, config, local);
return `Added ${rule} to ${local ? 'local' : 'shared'} detector ignoreRules (${path.relative(cwd, target) || target}).`;
}
function addFile(cwd, args) {
const { local, rest } = parseScope(args);
const glob = String(rest[0] || '').trim();
if (!glob) throw new Error('Pass a glob, e.g. impeccable ignores add-file "src/legacy/**"');
const config = readScopeConfig(cwd, local);
if (!config.ignoreFiles.includes(glob)) config.ignoreFiles.push(glob);
const target = writeScopeConfig(cwd, config, local);
return `Added ${glob} to ${local ? 'local' : 'shared'} detector ignoreFiles (${path.relative(cwd, target) || target}).`;
}
function addValue(cwd, args) {
const { local, rest } = parseScope(args);
const parsed = parseValueArgs(rest);
if (parsed.value !== '*' && !extractFindingIgnoreValue({ antipattern: parsed.rule, ignoreValue: parsed.value })) {
throw new Error(`${parsed.rule} has no extractable ignore value. Use impeccable ignores add-value ${parsed.rule} "*" --file <glob> to suppress it in matching files.`);
}
const config = readScopeConfig(cwd, local);
const key = ignoreValueKey(parsed);
const existing = config.ignoreValues.find((entry) => ignoreValueKey(entry) === key);
if (existing) {
if (parsed.reason) existing.reason = parsed.reason;
if (parsed.files.length) existing.files = parsed.files;
} else {
// rule, value, files, createdAt, reason — the same order the normalizers emit,
// so a fresh entry survives the next write untouched.
const entry = {
rule: parsed.rule,
value: parsed.value,
};
if (parsed.files.length) entry.files = parsed.files;
entry.createdAt = new Date().toISOString();
if (parsed.reason) entry.reason = parsed.reason;
config.ignoreValues.push(entry);
}
const target = writeScopeConfig(cwd, config, local);
return `Added ${parsed.rule}=${parsed.value} to ${local ? 'local' : 'shared'} detector ignoreValues (${path.relative(cwd, target) || target}).`;
}
function removeFromScopes(cwd, args, remover) {
const { local, all, rest } = parseScope(args, { allowAll: true });
const scopes = all ? [false, true] : [local];
const removed = [];
for (const isLocal of scopes) {
const config = readScopeConfig(cwd, isLocal);
const count = remover(config, rest);
if (count > 0) {
const target = writeScopeConfig(cwd, config, isLocal);
removed.push(`${count} from ${isLocal ? 'local' : 'shared'} (${path.relative(cwd, target) || target})`);
}
}
return removed.length ? `Removed ${removed.join(', ')}.` : 'No matching detector ignore found.';
}
function removeRule(cwd, args) {
return removeFromScopes(cwd, args, (config, rest) => {
const rule = String(rest[0] || '').trim().toLowerCase();
if (!rule) throw new Error('Pass a rule id, e.g. impeccable ignores remove-rule side-tab');
const before = config.ignoreRules.length;
config.ignoreRules = config.ignoreRules.filter((entry) => entry !== rule);
return before - config.ignoreRules.length;
});
}
function removeFile(cwd, args) {
return removeFromScopes(cwd, args, (config, rest) => {
const glob = String(rest[0] || '').trim();
if (!glob) throw new Error('Pass a glob, e.g. impeccable ignores remove-file "src/legacy/**"');
const before = config.ignoreFiles.length;
config.ignoreFiles = config.ignoreFiles.filter((entry) => entry !== glob);
return before - config.ignoreFiles.length;
});
}
function removeValue(cwd, args) {
return removeFromScopes(cwd, args, (config, rest) => {
const parsed = parseValueArgs(rest, { allowUnscopedWildcard: true });
const key = ignoreValueKey(parsed);
const before = config.ignoreValues.length;
config.ignoreValues = config.ignoreValues.filter((entry) => ignoreValueKey(entry) !== key);
return before - config.ignoreValues.length;
});
}
function clear(cwd, args) {
const { local, all, rest } = parseScope(args, { allowAll: true });
if (rest.length > 0) throw new Error('clear does not take positional arguments');
const scopes = all ? [false, true] : [local];
for (const isLocal of scopes) {
const config = readScopeConfig(cwd, isLocal);
config.ignoreRules = [];
config.ignoreFiles = [];
config.ignoreValues = [];
writeScopeConfig(cwd, config, isLocal);
}
return `Cleared detector ignores in ${all ? 'shared and local config' : local ? 'local config' : 'shared config'}.`;
}
function ignoreValueKey(entry) {
// Sorted: a file scope is a set. Comparing stored order made an on-disk scope
// miss the sorted argv form, so a re-add duplicated the entry and a remove
// silently failed. Every key that hashes `files` must sort — there are four.
const files = Array.isArray(entry.files) && entry.files.length ? [...entry.files].sort().join('\x1f') : '';
return `${String(entry.rule || '').trim().toLowerCase()}\0${normalizeIgnoreValue(entry.value)}\0${files}`;
}
export async function run(args = [], opts = {}) {
const cwd = opts.cwd || process.cwd();
const actionArg = args[0] || 'list';
if (actionArg === '--help' || actionArg === '-h') {
printUsage();
return;
}
const action = ACTION_ALIASES.get(String(actionArg).toLowerCase());
if (!action) {
throw new Error(`Unknown ignores action: ${actionArg}. Run "impeccable ignores --help".`);
}
const rest = args.slice(1);
let out;
switch (action) {
case 'list': out = list(cwd); break;
case 'add-rule': out = addRule(cwd, rest); break;
case 'add-file': out = addFile(cwd, rest); break;
case 'add-value': out = addValue(cwd, rest); break;
case 'remove-rule': out = removeRule(cwd, rest); break;
case 'remove-file': out = removeFile(cwd, rest); break;
case 'remove-value': out = removeValue(cwd, rest); break;
case 'clear': out = clear(cwd, rest); break;
}
if (out) console.log(out);
}
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import fs from 'node:fs';
import path from 'node:path';
import { fileURLToPath } from 'node:url';
import { loadDesignSystemForTarget } from '../design-system.mjs';
import { RULE_SCOPES, filterByScopes } from '../registry/antipatterns.mjs';
import { createBrowserDetector, detectUrl } from '../engines/browser/detect-url.mjs';
import { detectHtml } from '../engines/static-html/detect-html.mjs';
import { detectText } from '../engines/regex/detect-text.mjs';
import {
filterDetectionFindings,
readDetectionConfig,
shouldIgnoreDetectionFile,
} from '../../lib/impeccable-config.mjs';
import {
HTML_EXTENSIONS,
buildImportGraph,
detectFrameworkConfig,
isPortListening,
walkDir,
} from '../node/file-system.mjs';
// ---------------------------------------------------------------------------
// Output formatting
// ---------------------------------------------------------------------------
function formatFindingSummary(count) {
return `${count} anti-pattern${count === 1 ? '' : 's'} found.`;
}
// Local filesystem path behind a file:// URL, or null when it can't be mapped.
function fileUrlToLocalPath(url) {
try {
return fileURLToPath(url);
} catch {
return null;
}
}
const URL_TARGET_RE = /^(?:https?|file):\/\//i;
// Some agent runners hand a shell-ready URL list to Node as one argv value.
// A browser accepts the spaces as part of one encoded URL, producing a
// plausible scan attributed to a bogus joined path. Expand only when every
// whitespace-delimited token is independently a URL, preserving ordinary
// filesystem paths that contain spaces.
function expandJoinedUrlTargets(targets) {
return targets.flatMap((target) => {
if (!/\s/.test(target)) return [target];
const parts = target.trim().split(/\s+/).filter(Boolean);
return parts.length > 1 && parts.every(part => URL_TARGET_RE.test(part))
? parts
: [target];
});
}
// Advisory findings are detected but never treated as failures: they list in a
// separate, visually dimmed section, are excluded from the failure count that
// drives the exit code, and carry `"advisory": true` in JSON so consumers can
// filter. Every advisory finding carries the flag (stamped by the registry via
// findings.mjs).
function isAdvisory(finding) {
return Boolean(finding && (finding.advisory === true || finding.severity === 'advisory'));
}
function partitionAdvisory(findings) {
const primary = [];
const advisory = [];
for (const f of findings) (isAdvisory(f) ? advisory : primary).push(f);
return { primary, advisory };
}
// ANSI dim, when stderr is a TTY. Advisory output is chrome, so keep it quiet.
function dim(text) {
return process.stderr.isTTY ? `\x1b[2m${text}\x1b[0m` : text;
}
function formatFindingsBody(findings) {
const grouped = {};
for (const f of findings) {
if (!grouped[f.file]) grouped[f.file] = [];
grouped[f.file].push(f);
}
const out = [];
for (const [file, items] of Object.entries(grouped)) {
const importNote = items[0]?.importedBy?.length ? ` (imported by ${items[0].importedBy.join(', ')})` : '';
out.push(`\n${file}${importNote}`);
for (const item of items) {
out.push(` ${item.line ? `line ${item.line}: ` : ''}[${item.antipattern}] ${item.snippet}`);
out.push(`${item.description}`);
}
}
return out;
}
function formatAdvisorySection(advisory) {
if (!advisory || advisory.length === 0) return '';
const lines = [`\n${dim('── Advisory (not counted as failures) ──')}`];
for (const line of formatFindingsBody(advisory)) lines.push(dim(line));
lines.push(dim(`\n${advisory.length} advisory note${advisory.length === 1 ? '' : 's'}. Suppress with --no-advisory.`));
return lines.join('\n');
}
// Text/JSON formatter. `findings` is the full set; advisory items are separated
// out into their own section and excluded from the failure summary count. JSON
// output keeps every finding (each advisory one flagged) in a single array.
function formatFindings(findings, jsonMode) {
if (jsonMode) return JSON.stringify(findings, null, 2);
const { primary, advisory } = partitionAdvisory(findings);
const out = [...formatFindingsBody(primary)];
out.push(`\n${formatFindingSummary(primary.length)}`);
const advisorySection = formatAdvisorySection(advisory);
if (advisorySection) out.push(advisorySection);
return out.join('\n');
}
// ---------------------------------------------------------------------------
// Stdin handling
// ---------------------------------------------------------------------------
// `optionsFor` maps a local path to scan options carrying that path's own
// project design system (or base options when null). Falls back to a plain
// object so direct/legacy callers still work.
async function detectLocalFile(filePath, options) {
if (HTML_EXTENSIONS.has(path.extname(filePath).toLowerCase())) {
return detectHtml(filePath, options);
}
return detectText(fs.readFileSync(filePath, 'utf-8'), filePath, options);
}
async function handleStdin(optionsFor = () => ({})) {
const resolve = typeof optionsFor === 'function' ? optionsFor : () => optionsFor;
const chunks = [];
for await (const chunk of process.stdin) chunks.push(chunk);
const input = Buffer.concat(chunks).toString('utf-8');
try {
const parsed = JSON.parse(input);
const fp = parsed?.tool_input?.file_path;
if (fp && fs.existsSync(fp)) {
return detectLocalFile(fp, resolve(fp));
}
} catch { /* not JSON */ }
return detectText(input, '<stdin>', resolve(null));
}
// ---------------------------------------------------------------------------
// CLI
// ---------------------------------------------------------------------------
async function confirm(question) {
const rl = (await import('node:readline')).default.createInterface({
input: process.stdin, output: process.stderr,
});
return new Promise((resolve) => {
rl.question(`${question} [Y/n] `, (answer) => {
rl.close();
resolve(!answer || /^y(es)?$/i.test(answer.trim()));
});
});
}
function printUsage() {
console.log(`Usage: impeccable detect [options] [file-or-dir-or-url...]
Scan files or URLs for UI anti-patterns and design quality issues.
Options:
--json Output results as JSON
--quiet In text mode, only print the final findings count
--scope <name> Only report rules in the given design domain
(type, layout). Comma-separated.
--viewport <WxH> Browser viewport for URL scans (default 1280x800),
e.g. --viewport 390x844 for a mobile-width pass
--no-config Do not apply project config, detector ignores, inline
ignore comments, or DESIGN.md
--no-inline-ignores Do not honor in-file impeccable-disable* ignore comments
--no-design-system Do not load local DESIGN.md / .impeccable/design.json context
--no-advisory Suppress advisory findings entirely (e.g. em-dash overuse)
--help Show this help message
Advisory findings:
Some rules are advisory: detected and listed in a separate section, but never
counted as failures and never changing the exit code. They stay out of the
failure count so they never block automation. --no-advisory hides them.
Output streams:
Human-readable findings go to stderr so stdout stays available for structured
output. Use --json for JSON on stdout, or redirect text with 2> findings.txt.
Exit status:
0 Scan completed with no primary findings (advisories may still be listed)
1 At least one requested target could not be scanned
2 Scan completed with primary findings
Operational failure takes precedence when a multi-target scan is partial.
Project config:
Respects .impeccable/config.json and .impeccable/config.local.json detector
settings: detector.ignoreRules, detector.ignoreFiles, detector.ignoreValues,
and detector.designSystem.enabled.
Inline ignores:
In-file comments waive a finding where it lives and travel with the file:
<!-- impeccable-disable overused-font -- exported brand doc -->
.brand { font-family: Inter } /* impeccable-disable-line overused-font */
// impeccable-disable-next-line bounce-easing: intentional bounce
impeccable-disable applies to the whole file; -line / -next-line are scoped.
List one or more rule ids (comma-separated), or omit them / use * for all.
Detection modes:
HTML files Static HTML/CSS analysis (default, catches linked CSS)
Non-HTML files Regex pattern matching (CSS, JSX, TSX, etc.)
URLs Puppeteer full browser rendering (auto-detected;
http(s):// and file:// URLs; accessible linked CSS included)
Examples:
impeccable detect src/
impeccable detect index.html
impeccable detect https://example.com
impeccable detect --json .
impeccable detect --no-config src/`);
}
async function detectCli() {
let args = process.argv.slice(2).map(arg => {
if (arg === '-json') return '--json';
if (arg === '-fast') return '--fast';
return arg;
});
if (args[0] === 'detect') args = args.slice(1);
const jsonMode = args.includes('--json');
const quietMode = args.includes('--quiet');
const helpMode = args.includes('--help');
const noAdvisory = args.includes('--no-advisory');
// --fast (regex-only) is deprecated: since the jsdom removal, the static
// HTML/CSS analysis is fast and covers every rule, so the regex-only path
// only loses coverage for no real speed win. Accept the flag for back-compat
// but ignore it and run the full scan.
if (args.includes('--fast')) {
process.stderr.write(
'Note: --fast is deprecated and ignored. The full scan is fast now and runs every rule.\n',
);
}
if (args.includes('--gpt') || args.includes('--gemini')) {
process.stderr.write(
'Note: --gpt and --gemini are deprecated and ignored. Generated-UI tells now run by default.\n',
);
}
const configEnabled = !args.includes('--no-config');
const detectionConfig = configEnabled
? readDetectionConfig(process.cwd())
: { ignoreRules: [], ignoreFiles: [], ignoreValues: [] };
const scopes = [];
for (let i = 0; i < args.length; i++) {
if (args[i] !== '--scope' && !args[i].startsWith('--scope=')) continue;
const inline = args[i].startsWith('--scope=');
const value = inline ? args[i].slice('--scope='.length) : args[i + 1];
const parsed = (value && !value.startsWith('--'))
? value.split(',').map(s => s.trim()).filter(Boolean)
: [];
// A bare `--scope` would otherwise fall out of `targets` and scan unscoped;
// fail loudly so a mistyped pre-scan never runs the wrong rule set.
if (parsed.length === 0) {
process.stderr.write(
`Error: --scope requires a value. Valid scopes: ${[...RULE_SCOPES].join(', ')}\n`,
);
process.exit(1);
}
scopes.push(...parsed);
args.splice(i, inline ? 1 : 2);
i -= 1;
}
let viewport = null;
for (let i = 0; i < args.length; i++) {
if (args[i] !== '--viewport' && !args[i].startsWith('--viewport=')) continue;
const inline = args[i].startsWith('--viewport=');
const value = inline ? args[i].slice('--viewport='.length) : args[i + 1];
const match = /^(\d{2,5})x(\d{2,5})$/i.exec(value || '');
if (!match) {
process.stderr.write('Error: --viewport requires a WxH value, e.g. --viewport 390x844\n');
process.exit(1);
}
viewport = { width: Number(match[1]), height: Number(match[2]) };
args.splice(i, inline ? 1 : 2);
i -= 1;
}
const unknownScopes = scopes.filter(s => !RULE_SCOPES.has(s));
if (unknownScopes.length > 0) {
process.stderr.write(
`Error: unknown --scope value(s): ${unknownScopes.join(', ')}. Valid scopes: ${[...RULE_SCOPES].join(', ')}\n`,
);
process.exit(1);
}
const designSystemEnabled = configEnabled && !args.includes('--no-design-system') && detectionConfig.designSystem?.enabled !== false;
// Inline `impeccable-disable*` waivers are part of the scanned file, so they
// apply by default. `--no-config` (raw scan) and the dedicated
// `--no-inline-ignores` both turn them off.
const inlineIgnoresEnabled = configEnabled && !args.includes('--no-inline-ignores');
const baseScanOptions = { inlineIgnores: inlineIgnoresEnabled };
if (viewport) baseScanOptions.viewport = viewport;
// DESIGN.md must resolve from EACH scan target's own project root, not from
// process.cwd(): scanning project B's files from inside project A applied A's
// design rules (cross-project contamination). Resolve per target, memoized by
// resolved project root so a multi-file scan pays the read once per project.
// A target with no project marker above it gets no design system (never cwd's).
const designSystemCache = new Map();
const scanOptionsFor = (localPath) => {
if (!designSystemEnabled || !localPath) return baseScanOptions;
const designSystem = loadDesignSystemForTarget(localPath, { cache: designSystemCache });
return designSystem ? { ...baseScanOptions, designSystem } : baseScanOptions;
};
const targets = expandJoinedUrlTargets(args.filter(a => !a.startsWith('--')));
if (helpMode) { printUsage(); process.exit(0); }
let allFindings = [];
let hadOperationalFailure = false;
const reportLocalScanFailure = (target, error) => {
hadOperationalFailure = true;
process.stderr.write(`Error: cannot scan ${target}: ${error.message}\n`);
};
if (!process.stdin.isTTY && targets.length === 0) {
allFindings = await handleStdin(scanOptionsFor);
} else {
const paths = targets.length > 0 ? targets : [process.cwd()];
// file:// URLs get the same Puppeteer-rendered pass as http(s) — the
// real cascade, real computed styles, real layout. Callers that want a
// browser-grade scan of a local artifact can pass file:///abs/path.html
// instead of the bare path (which stays on the static engine).
const urlTargetCount = paths.filter(target => URL_TARGET_RE.test(target)).length;
let browserDetector = null;
let browserSetupFailed = false;
if (urlTargetCount > 1) {
try {
browserDetector = await createBrowserDetector();
} catch (e) {
browserSetupFailed = true;
hadOperationalFailure = true;
process.stderr.write(`Error: ${e.message}\n`);
}
}
try {
for (const target of paths) {
if (URL_TARGET_RE.test(target)) {
if (browserSetupFailed) continue;
// A file:// URL points at a local artifact, so its design system
// resolves from that file's project. A remote http(s) URL has no
// local project — it gets base options (no design system), never
// process.cwd()'s.
const urlOptions = /^file:/i.test(target)
? scanOptionsFor(fileUrlToLocalPath(target))
: baseScanOptions;
try {
const scanner = browserDetector
? (url) => browserDetector.detectUrl(url, urlOptions)
: (url) => detectUrl(url, urlOptions);
allFindings.push(...await scanner(target));
} catch (e) {
hadOperationalFailure = true;
process.stderr.write(`Error: ${e.message}\n`);
}
continue;
}
const resolved = path.resolve(target);
let stat;
try { stat = fs.statSync(resolved); }
catch {
hadOperationalFailure = true;
process.stderr.write(`Warning: cannot access ${target}\n`);
continue;
}
if (stat.isDirectory()) {
// Check for framework dev server config (skip in JSON/quiet modes to avoid polluting output)
if (!jsonMode && !quietMode) {
const fwConfig = detectFrameworkConfig(resolved);
if (fwConfig) {
const probe = await isPortListening(fwConfig.port, fwConfig.fingerprint);
if (probe.listening && probe.matched) {
process.stderr.write(
`\n${fwConfig.name} dev server detected on localhost:${fwConfig.port}.\n` +
`For more accurate results, scan the running site:\n` +
` npx impeccable detect http://localhost:${fwConfig.port}\n\n`
);
} else if (probe.listening && !probe.matched) {
process.stderr.write(
`\n${fwConfig.name} project detected (${path.basename(fwConfig.configPath)}).\n` +
`Port ${fwConfig.port} is in use by another service. Start the ${fwConfig.name} dev server and scan via URL for best results.\n\n`
);
} else {
process.stderr.write(
`\n${fwConfig.name} project detected (${path.basename(fwConfig.configPath)}).\n` +
`Start the dev server and scan via URL for best results:\n` +
` npx impeccable detect http://localhost:${fwConfig.port}\n\n`
);
}
}
}
const files = walkDir(resolved, reportLocalScanFailure)
.filter(file => !shouldIgnoreDetectionFile(file, process.cwd(), detectionConfig));
const htmlCount = files.filter(f => HTML_EXTENSIONS.has(path.extname(f).toLowerCase())).length;
// Warn and confirm if scanning many files (static HTML/CSS processes each HTML file)
if (files.length > 50 && process.stdin.isTTY && !jsonMode && !quietMode) {
process.stderr.write(
`\nFound ${files.length} files (${htmlCount} HTML) in ${target}.\n` +
`Scanning may take a while${htmlCount > 10 ? ' (static HTML/CSS processes each HTML file individually)' : ''}.\n` +
`Target a specific subdirectory to narrow scope.\n`
);
const ok = await confirm('Continue?');
if (!ok) { process.stderr.write('Aborted.\n'); process.exit(0); }
}
// Build import graph for multi-file awareness
const unreadableFiles = new Set();
const graph = buildImportGraph(files, (file, error) => {
unreadableFiles.add(file);
reportLocalScanFailure(file, error);
});
// Build reverse map: file -> set of files that import it
const importedByMap = new Map();
for (const [importer, imports] of graph) {
for (const imported of imports) {
if (!importedByMap.has(imported)) importedByMap.set(imported, new Set());
importedByMap.get(imported).add(importer);
}
}
for (const file of files) {
if (unreadableFiles.has(file)) continue;
try {
// Each file resolves its own project design system (cached by root),
// so a scan spanning sibling projects applies the right rules per file.
const fileOptions = scanOptionsFor(file);
const fileFindings = await detectLocalFile(file, fileOptions);
// Annotate findings with import context
const importers = importedByMap.get(file);
if (importers && importers.size > 0) {
const importerNames = [...importers].map(f => path.basename(f));
for (const f of fileFindings) {
f.importedBy = importerNames;
}
}
allFindings.push(...fileFindings);
} catch (error) {
reportLocalScanFailure(file, error);
}
}
} else if (stat.isFile()) {
if (shouldIgnoreDetectionFile(resolved, process.cwd(), detectionConfig)) continue;
try {
const fileOptions = scanOptionsFor(resolved);
allFindings.push(...await detectLocalFile(resolved, fileOptions));
} catch (error) {
reportLocalScanFailure(target, error);
}
}
}
} finally {
if (browserDetector) await browserDetector.close();
}
}
allFindings = filterDetectionFindings(allFindings, detectionConfig);
allFindings = filterByScopes(allFindings, scopes);
// --no-advisory drops advisory findings before any output or exit-code math.
if (noAdvisory) allFindings = allFindings.filter((f) => !isAdvisory(f));
// The exit code and failure count reflect non-advisory findings only. An
// advisory-only scan still prints its notes but exits 0 (a clean pass), so
// advisory rules never break CI or block automation.
const { primary, advisory } = partitionAdvisory(allFindings);
// Exit 1 means at least one requested scan could not complete. It takes
// precedence over exit 2 because findings from the remaining targets do not
// turn a partial scan into a complete one.
const exitCode = hadOperationalFailure ? 1 : (primary.length > 0 ? 2 : 0);
if (allFindings.length > 0) {
if (jsonMode) process.stdout.write(formatFindings(allFindings, true) + '\n');
else if (quietMode) {
process.stderr.write(formatFindingSummary(primary.length) + '\n');
if (advisory.length > 0) {
process.stderr.write(dim(`${advisory.length} advisory note${advisory.length === 1 ? '' : 's'} (not counted).`) + '\n');
}
}
else process.stderr.write(formatFindings(allFindings, false) + '\n');
process.exit(exitCode);
}
if (jsonMode) process.stdout.write('[]\n');
process.exit(exitCode);
}
export { formatFindings, handleStdin, confirm, printUsage, detectCli };
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#!/usr/bin/env node
/**
* Anti-Pattern Detector for Impeccable
* Copyright (c) 2026 Paul Bakaus
* SPDX-License-Identifier: Apache-2.0
*
* Public API facade. Runtime engines live under cli/engine/engines/.
*/
import { detectCli } from './cli/main.mjs';
export { ANTIPATTERNS, RULE_ENGINE_SUPPORT, getAntipattern, getRulesForCategory, getRuleEngineSupport } from './registry/antipatterns.mjs';
export { SAFE_TAGS, BORDER_SAFE_TAGS, OVERUSED_FONTS, GENERIC_FONTS, KNOWN_SERIF_FONTS } from './shared/constants.mjs';
export { isNeutralColor, parseRgb, relativeLuminance, contrastRatio, parseGradientColors, hasChroma, getHue, colorToHex } from './shared/color.mjs';
export { isFullPage } from './shared/page.mjs';
export {
checkElementBorders,
checkElementMotion,
checkElementGlow,
checkPageTypography,
checkPageLayout,
checkHtmlPatterns,
} from './rules/checks.mjs';
export { createDetectorProfile, summarizeDetectorProfile } from './profile/profiler.mjs';
export {
parseFrontmatter as parseDesignFrontmatter,
normalizeDesignSystem,
loadDesignSystemForCwd,
checkSourceDesignSystem,
collectStaticDesignSystemFindings,
} from './design-system.mjs';
export { detectHtml } from './engines/static-html/detect-html.mjs';
export { detectUrl, createBrowserDetector } from './engines/browser/detect-url.mjs';
export { detectText, extractStyleBlocks, extractCSSinJS } from './engines/regex/detect-text.mjs';
export {
walkDir,
hasScannableExtension,
SCANNABLE_EXTENSIONS,
SKIP_DIRS,
buildImportGraph,
resolveImport,
detectFrameworkConfig,
isPortListening,
FRAMEWORK_CONFIGS,
} from './node/file-system.mjs';
export { formatFindings, detectCli } from './cli/main.mjs';
const isMainModule = process.argv[1]?.endsWith('detect-antipatterns.mjs') ||
process.argv[1]?.endsWith('detect-antipatterns.mjs/');
if (isMainModule) detectCli();
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@@ -1,434 +0,0 @@
import fs from 'node:fs';
import path from 'node:path';
import { fileURLToPath } from 'node:url';
import { deriveAdvisoryFlag, finding } from '../../findings.mjs';
import { profileFindingsAsync, profileStep, profileStepAsync } from '../../profile/profiler.mjs';
import { captureVisualContrastCandidate } from '../visual/screenshot-contrast.mjs';
import { checkContentHiddenAtRest } from '../../rules/checks.mjs';
// On Windows, puppeteer's bundled Chrome lives in a user-writable cache
// directory. Its GPU process can be denied (STATUS_ACCESS_DENIED) by security
// software or the GPU sandbox because it launches from an untrusted path.
// Chrome then crash-loops the GPU process, and each relaunch briefly flashes a
// compositor surface, the black window users report during `detect <url>`
// (issue #372). The system-installed Chrome runs from a trusted location with a
// healthy GPU, so channel:'chrome' avoids the crash entirely; both use hardware
// GPU, so contrast measurement is unaffected. Scope this to Windows only: other
// platforms do not have the bug, so they keep the pinned bundled build for
// consistent measurement across machines. Fall back to bundled when the switch
// fails (Chrome not installed, or channel resolution fails). If the bundled
// launch then also fails, surface the original system-Chrome error as the
// cause so the real failure is not lost.
async function launchBrowser(puppeteer, { headless = true, args = [] } = {}) {
let channelError;
if (process.platform === 'win32') {
try {
return await puppeteer.default.launch({ channel: 'chrome', headless, args });
} catch (err) {
// System Chrome unavailable or unlaunchable; fall through to the bundled
// browser, but keep the error in case the fallback fails too.
channelError = err;
}
}
try {
return await puppeteer.default.launch({ headless, args });
} catch (err) {
if (channelError && err && err.cause === undefined) err.cause = channelError;
throw err;
}
}
// Reveal sweep + invisible-text measurement for the content-hidden-at-rest
// rule. Scrolls through the document with instant jumps (bypasses CSS
// scroll-behavior: smooth) so IntersectionObserver / scroll reveal handlers
// get every chance to fire, returns to the top, lets transitions settle,
// then measures how much text still renders invisible. A healthy
// reveal-on-scroll page drops to ~0 after the sweep; a page whose reveal
// script died keeps most of its text at opacity 0.
async function measureContentHiddenAfterReveal(page) {
await page.evaluate(async () => {
const step = Math.max(200, Math.floor(window.innerHeight * 0.7));
const max = Math.max(
document.documentElement.scrollHeight || 0,
document.body?.scrollHeight || 0,
);
for (let y = 0; y <= max; y += step) {
window.scrollTo({ top: y, left: 0, behavior: 'instant' });
await new Promise(resolve => requestAnimationFrame(() => setTimeout(resolve, 40)));
}
window.scrollTo({ top: 0, left: 0, behavior: 'instant' });
await new Promise(resolve => setTimeout(resolve, 700));
});
return page.evaluate(() => {
if (typeof window.impeccableMeasureHiddenText !== 'function') return null;
return window.impeccableMeasureHiddenText();
});
}
function serializeDesignSystemForBrowser(designSystem) {
if (!designSystem?.present) return null;
return {
present: true,
hasFonts: designSystem.hasFonts === true,
allowedFonts: Array.from(designSystem.allowedFonts || []),
hasColors: designSystem.hasColors === true,
allowedColors: Array.from(designSystem.allowedColorKeys?.values?.() || [])
.map(entry => entry?.color)
.filter(color => color && Number.isFinite(color.r) && Number.isFinite(color.g) && Number.isFinite(color.b))
.map(color => ({ r: color.r, g: color.g, b: color.b })),
hasRadii: designSystem.hasRadii === true,
allowedRadii: (designSystem.allowedRadii || [])
.map(entry => Number(entry?.px))
.filter(px => Number.isFinite(px)),
hasPillRadius: designSystem.hasPillRadius === true,
};
}
async function runVisualContrastFallback(page, serializedGroups, options, profile, target) {
if (options?.visualContrast === false) return [];
const maxCandidates = Number.isFinite(options?.visualContrastMaxCandidates)
? options.visualContrastMaxCandidates
: 12;
const scrollOffscreen = options?.visualContrastScrollOffscreen !== false;
const existingLowContrastSelectors = new Set(
serializedGroups
.filter(group => group.findings?.some(f => f.type === 'low-contrast'))
.map(group => group.selector)
.filter(Boolean)
);
let browserAnalyses = [];
const findings = [];
if (options?.visualContrastBrowser !== false) {
const browserFindings = await profileFindingsAsync(profile, {
engine: 'browser',
phase: 'visual-contrast',
ruleId: 'browser-fallback',
target,
}, async () => {
browserAnalyses = await page.evaluate(async ({ maxCandidates, scrollOffscreen }) => {
if (typeof window.impeccableAnalyzeVisualContrast !== 'function') return [];
return window.impeccableAnalyzeVisualContrast({ maxCandidates, scrollOffscreen });
}, { maxCandidates, scrollOffscreen });
return browserAnalyses
.filter(result => result.finding && !existingLowContrastSelectors.has(result.selector))
.map(result => result.finding);
});
findings.push(...browserFindings);
}
let candidates = browserAnalyses.length > 0 ? browserAnalyses : [];
if (candidates.length === 0) {
candidates = await profileStepAsync(profile, {
engine: 'browser',
phase: 'visual-contrast',
ruleId: 'collect-candidates',
target,
}, () => page.evaluate(({ maxCandidates }) => {
if (typeof window.impeccableCollectVisualContrastCandidates !== 'function') return [];
return window.impeccableCollectVisualContrastCandidates({ maxCandidates });
}, { maxCandidates }));
}
const viewport = options?.viewport || { width: 1280, height: 800 };
const browserResolvedSelectors = new Set(
browserAnalyses
.filter(result => result.status === 'fail' || result.status === 'pass')
.map(result => result.selector)
.filter(Boolean)
);
const filtered = candidates.filter(candidate =>
!existingLowContrastSelectors.has(candidate.selector) &&
!browserResolvedSelectors.has(candidate.selector)
);
if (options?.visualContrastPixel === false) return findings;
for (const candidate of filtered) {
const result = await profileFindingsAsync(profile, {
engine: 'browser',
phase: 'visual-contrast',
ruleId: 'pixel-diff',
target,
}, async () => {
const finding = await captureVisualContrastCandidate(page, candidate, viewport);
return finding ? [finding] : [];
});
findings.push(...result);
}
return findings;
}
// ---------------------------------------------------------------------------
// Puppeteer detection (for URLs)
// ---------------------------------------------------------------------------
function decodeUrlComponent(value) {
try {
return decodeURIComponent(value);
} catch {
return value;
}
}
function splitScanUrl(url) {
let parsed;
try {
parsed = new URL(url);
} catch {
return { href: url, credentials: null };
}
if (!parsed.username && !parsed.password) {
return { href: url, credentials: null };
}
const credentials =
parsed.protocol === 'http:' || parsed.protocol === 'https:'
? {
username: decodeUrlComponent(parsed.username),
password: decodeUrlComponent(parsed.password),
}
: null;
parsed.username = '';
parsed.password = '';
return { href: parsed.href, credentials };
}
function basicAuthHeader(credentials) {
return `Basic ${Buffer.from(`${credentials.username}:${credentials.password}`).toString('base64')}`;
}
// page.authenticate is page-wide: a cross-origin redirect that then 401s
// would receive these credentials. Attach Authorization only to the scan origin.
async function applyOriginScopedAuth(page, href, credentials) {
if (!credentials) return;
let origin = '';
try {
origin = new URL(href).origin;
} catch {
return;
}
if (!origin) return;
const header = basicAuthHeader(credentials);
await page.setRequestInterception(true);
page.on('request', (request) => {
let headers;
try {
if (new URL(request.url()).origin === origin) {
headers = { ...request.headers(), authorization: header };
}
} catch {
// invalid request URL: continue without auth
}
void request.continue(headers ? { headers } : undefined).catch(() => {});
});
}
async function detectUrl(rawUrl, options = {}) {
const { href: url, credentials } = splitScanUrl(rawUrl);
const profile = options?.profile;
const waitUntil = options?.waitUntil || 'networkidle0';
const settleMs = Number.isFinite(options?.settleMs) ? options.settleMs : 0;
const viewport = options?.viewport || { width: 1280, height: 800 };
const externalBrowser = options?.browser || null;
let puppeteer;
if (!externalBrowser) {
try {
puppeteer = await profileStepAsync(profile, {
engine: 'browser',
phase: 'setup',
ruleId: 'import-puppeteer',
target: url,
}, () => import('puppeteer'));
} catch {
throw new Error('puppeteer is required for URL scanning. Install: npm install puppeteer');
}
}
// Read the browser detection script — reuse it instead of reimplementing
const browserScriptPath = path.resolve(
path.dirname(fileURLToPath(import.meta.url)),
'..',
'..',
'detect-antipatterns-browser.js'
);
let browserScript;
try {
browserScript = profileStep(profile, {
engine: 'browser',
phase: 'setup',
ruleId: 'read-browser-script',
target: url,
}, () => fs.readFileSync(browserScriptPath, 'utf-8'));
} catch {
throw new Error(`Browser script not found at ${browserScriptPath}`);
}
// CI runners (GitHub Actions Ubuntu) block unprivileged user namespaces, so
// Chrome can't initialize its sandbox there. Disable the sandbox only when
// running in CI; local users keep the default hardened launch.
const launchArgs = process.env.CI ? ['--no-sandbox', '--disable-setuid-sandbox'] : [];
const browser = externalBrowser || await profileStepAsync(profile, {
engine: 'browser',
phase: 'load',
ruleId: 'launch-browser',
target: url,
}, () => launchBrowser(puppeteer, { headless: options?.headless ?? true, args: launchArgs }));
const page = await profileStepAsync(profile, {
engine: 'browser',
phase: 'load',
ruleId: 'new-page',
target: url,
}, () => browser.newPage());
// Uncaught exceptions and parse errors surface as pageerror events. The
// listener must attach before goto: a syntax error fires during the
// initial parse, long before the load event. Dedupe by message; a single
// broken loop can otherwise throw hundreds of identical errors.
const pageErrors = [];
if (options?.scriptErrors !== false) {
page.on('pageerror', (err) => {
const message = String(err?.message || err).split('\n')[0].trim().slice(0, 160);
if (message && !pageErrors.includes(message)) pageErrors.push(message);
});
}
let results = [];
try {
await profileStepAsync(profile, {
engine: 'browser',
phase: 'load',
ruleId: 'set-viewport',
target: url,
}, () => page.setViewport(viewport));
await applyOriginScopedAuth(page, url, credentials);
await profileStepAsync(profile, {
engine: 'browser',
phase: 'load',
ruleId: `goto:${waitUntil}`,
target: url,
}, () => page.goto(url, { waitUntil, timeout: 30000 }));
if (settleMs > 0) {
await profileStepAsync(profile, {
engine: 'browser',
phase: 'load',
ruleId: 'settle',
target: url,
}, () => new Promise(resolve => setTimeout(resolve, settleMs)));
}
// Inject the browser detection script and collect results
const browserDesignSystem = serializeDesignSystemForBrowser(options?.designSystem);
await profileStepAsync(profile, {
engine: 'browser',
phase: 'scan',
ruleId: 'configure-pure-detect',
target: url,
}, () => page.evaluate((designSystem) => {
window.__IMPECCABLE_CONFIG__ = {
...(window.__IMPECCABLE_CONFIG__ || {}),
autoScan: false,
...(designSystem ? { designSystem } : {}),
};
}, browserDesignSystem));
await profileStepAsync(profile, {
engine: 'browser',
phase: 'scan',
ruleId: 'inject-browser-script',
target: url,
}, () => page.evaluate(browserScript));
let serializedGroups = [];
results = await profileFindingsAsync(profile, {
engine: 'browser',
phase: 'scan',
ruleId: 'browser-scan',
target: url,
}, async () => {
serializedGroups = await page.evaluate(() => {
if (!window.impeccableDetect) return [];
return window.impeccableDetect({ decorate: false, serialize: true });
});
return serializedGroups.flatMap(({ findings }) =>
findings.map(f => ({ id: f.type, snippet: f.detail, ignoreValue: f.ignoreValue || '', severity: f.severity || '' }))
);
});
// Content invisible at rest: reveal sweep, then re-measure. Runs after
// the main scan (which must see the true at-rest state) and before the
// visual contrast fallback (the sweep restores scroll to the top).
if (options?.contentHidden !== false) {
const hiddenFindings = await profileFindingsAsync(profile, {
engine: 'browser',
phase: 'scan',
ruleId: 'content-hidden-at-rest',
target: url,
}, async () => {
const measured = await measureContentHiddenAfterReveal(page);
return measured ? checkContentHiddenAtRest(measured) : [];
});
results.push(...hiddenFindings);
}
for (const message of pageErrors.slice(0, 3)) {
results.push({ id: 'script-error', snippet: message });
}
const visualFindings = await runVisualContrastFallback(page, serializedGroups, options, profile, url);
results.push(...visualFindings);
} finally {
await profileStepAsync(profile, {
engine: 'browser',
phase: 'load',
ruleId: 'close-page',
target: url,
}, () => page.close().catch(() => {}));
if (!externalBrowser) {
await profileStepAsync(profile, {
engine: 'browser',
phase: 'load',
ruleId: 'close-browser',
target: url,
}, () => browser.close());
}
}
return results.map(f => {
const item = finding(f.id, url, f.snippet);
if (f.ignoreValue) item.ignoreValue = f.ignoreValue;
// Per-finding severity promotion (e.g. hero-region pulsing dot)
// overrides the registry default carried by finding().
if (f.severity && f.severity !== item.severity) item.severity = f.severity;
return deriveAdvisoryFlag(item);
});
}
async function createBrowserDetector(options = {}) {
let puppeteer;
try {
puppeteer = await import('puppeteer');
} catch {
throw new Error('puppeteer is required for URL scanning. Install: npm install puppeteer');
}
const launchArgs = options.launchArgs || (process.env.CI ? ['--no-sandbox', '--disable-setuid-sandbox'] : []);
const browser = options.browser || await launchBrowser(puppeteer, {
headless: options.headless ?? true,
args: launchArgs,
});
const ownsBrowser = !options.browser;
const defaults = {
waitUntil: options.waitUntil || 'load',
settleMs: Number.isFinite(options.settleMs) ? options.settleMs : 100,
viewport: options.viewport || { width: 1280, height: 800 },
};
return {
browser,
async detectUrl(url, scanOptions = {}) {
return detectUrl(url, {
...defaults,
...scanOptions,
browser,
});
},
async close() {
if (ownsBrowser) await browser.close().catch(() => {});
},
};
}
export { runVisualContrastFallback, detectUrl, createBrowserDetector, launchBrowser, splitScanUrl };
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@@ -1,278 +0,0 @@
import fs from 'node:fs';
import path from 'node:path';
import { OVERUSED_FONTS, primaryFontFace } from '../../shared/constants.mjs';
import {
checkSourceDesignSystem,
collectStaticDesignSystemFindings,
mergeDesignSystemFindings,
} from '../../design-system.mjs';
import { isFullPage } from '../../shared/page.mjs';
import { applyInlineIgnores } from '../../shared/inline-ignores.mjs';
import { deriveAdvisoryFlag, finding } from '../../findings.mjs';
import { profileFindings, profileStep, profileStepAsync } from '../../profile/profiler.mjs';
import {
checkElementBorders,
checkElementClippedOverflow,
checkElementColors,
checkElementGlow,
checkElementGptBorderShadow,
checkElementHeroEyebrow,
checkElementHoverContrast,
checkElementIconTile,
checkElementItalicSerif,
checkElementMotion,
checkElementOversizedH1,
checkElementQuality,
checkElementRadialSpotlight,
checkFlatTypeHierarchyFromDoc,
checkCreamPalette,
checkHtmlPatterns,
checkKickerAboveHeadingFromDoc,
scopedIgnoreActive,
checkNumberedSectionLabelsFromDoc,
checkPageLayout,
checkPageQualityFromDoc,
checkRepeatedContainerTextFromDoc,
resolveBackground,
resolveBorderRadiusPx,
} from '../../rules/checks.mjs';
import { detectText, runTextContentAnalyzers } from '../regex/detect-text.mjs';
import {
StaticDocument,
buildStaticStyleMap,
buildStaticWindow,
collectStaticCssText,
} from './css-cascade.mjs';
function checkStaticPageTypography(document, window) {
const findings = [];
const fonts = new Set();
const overusedFound = new Set();
for (const el of document.querySelectorAll('p, h1, h2, h3, h4, h5, h6, li, td, th, dd, blockquote, figcaption, a, button, label, span, div')) {
const hasText = el.childNodes.some(n => n.nodeType === 3 && n.textContent.trim().length > 0);
if (!hasText) continue;
const primary = primaryFontFace(window.getComputedStyle(el).fontFamily);
if (!primary) continue;
fonts.add(primary);
if (OVERUSED_FONTS.has(primary)) overusedFound.add(primary);
}
for (const font of overusedFound) {
findings.push({ id: 'overused-font', snippet: `Primary font: ${font}` });
}
findings.push(...checkFlatTypeHierarchyFromDoc(document, el => window.getComputedStyle(el)));
return findings;
}
function checkElementBrokenImage(el) {
const src = (el.getAttribute && el.getAttribute('src')) ?? el.attribs?.src;
// Missing src attribute entirely
if (src === undefined || src === null) {
return [{ id: 'broken-image', snippet: '<img> with no src attribute' }];
}
const trimmed = String(src).trim();
// Empty or placeholder-only src values
if (trimmed === '' || trimmed === '#') {
return [{ id: 'broken-image', snippet: `<img src="${src}">` }];
}
return [];
}
const STATIC_ELEMENT_RULES = [
{ id: 'border-rules', selector: '*', run: (el, tag, style, window, customPropMap) => checkElementBorders(tag, style, null, resolveBorderRadiusPx(el, style, parseFloat(style.width) || 0, window), el) },
{ id: 'color-rules', selector: '*', run: (el, tag, style, window, customPropMap) => checkElementColors(el, style, tag, window, customPropMap, false) },
{ id: 'hover-color-rules', selector: '*', run: (el, tag, style, window) => checkElementHoverContrast(el, style, tag, window) },
{ id: 'dark-glow', selector: '*', run: (el, tag, style, window, customPropMap) => checkElementGlow(tag, style, resolveBackground(el.parentElement || el, window, customPropMap)) },
{ id: 'motion-rules', selector: '*', run: (el, tag, style) => checkElementMotion(tag, style) },
{ id: 'icon-tile-stack', selector: 'h1,h2,h3,h4,h5,h6', run: (el, tag, _style, window) => checkElementIconTile(el, tag, window) },
{ id: 'italic-serif-display', selector: 'h1,h2', run: (el, tag, style) => checkElementItalicSerif(el, style, tag) },
{ id: 'hero-eyebrow-chip', selector: 'h1', run: (el, tag, style, window, customPropMap) => checkElementHeroEyebrow(el, style, tag, window, customPropMap) },
{ id: 'broken-image', selector: 'img', run: (el) => checkElementBrokenImage(el) },
{ id: 'quality-rules', selector: '*', run: (el, tag, style, window) => checkElementQuality(el, style, tag, window) },
{ id: 'oversized-h1', selector: 'h1', run: (el, tag, style, window) => checkElementOversizedH1(el, style, tag, window) },
{ id: 'clipped-overflow-container', selector: '*', run: (el, tag, style, window) => checkElementClippedOverflow(el, style, tag, window) },
{ id: 'gpt-thin-border-wide-shadow', selector: '*', run: (el, tag, style) => checkElementGptBorderShadow(el, style) },
{ id: 'radial-spotlight-glow', selector: '*', run: (el, tag, style, window) => checkElementRadialSpotlight(el, style, tag, window) },
];
async function detectHtml(filePath, options = {}) {
const profile = options?.profile;
const html = profileStep(profile, {
engine: 'static-html',
phase: 'setup',
ruleId: 'read-html',
target: filePath,
}, () => fs.readFileSync(filePath, 'utf-8'));
let modules;
try {
modules = await profileStepAsync(profile, {
engine: 'static-html',
phase: 'setup',
ruleId: 'import-static-parser',
target: filePath,
}, async () => {
const [htmlparser2, cssSelect, csstree, domutils] = await Promise.all([
import('htmlparser2'),
import('css-select'),
import('css-tree'),
import('domutils'),
]);
return {
parseDocument: htmlparser2.parseDocument,
selectAll: cssSelect.selectAll,
selectOne: cssSelect.selectOne,
compile: cssSelect.compile,
csstree,
domutils,
};
});
} catch (err) {
if (!globalThis.__impeccableStaticHtmlWarned) {
globalThis.__impeccableStaticHtmlWarned = true;
process.stderr.write(
'impeccable detect: DEGRADED - HTML parser modules unavailable ' +
'(htmlparser2, css-select, css-tree, domutils).\n' +
'Falling back to regex matching. Custom properties, selector matching and computed ' +
'contrast are NOT evaluated; findings are an undercount, not a clean bill of health.\n'
);
}
return detectText(html, filePath, options);
}
const resolvedPath = path.resolve(filePath);
const fileDir = path.dirname(resolvedPath);
const root = profileStep(profile, {
engine: 'static-html',
phase: 'parse-html',
ruleId: 'parse-document',
target: filePath,
}, () => modules.parseDocument(html, { lowerCaseAttributeNames: false, lowerCaseTags: true }));
const cssText = collectStaticCssText(root, fileDir, profile, filePath, modules);
const document = new StaticDocument(root, modules);
buildStaticStyleMap(root, document, cssText, modules, profile, filePath);
const window = buildStaticWindow(document);
const customPropMap = null;
const findings = [];
const runElementCheck = (ruleId, callback) => profile
? profileFindings(profile, { engine: 'static-html', phase: 'element', ruleId, target: filePath }, callback)
: callback();
const visitedByRule = new Map();
for (const rule of STATIC_ELEMENT_RULES) {
const elements = document.querySelectorAll(rule.selector);
visitedByRule.set(rule.id, elements.length);
for (const el of elements) {
const tag = el.tagName.toLowerCase();
const style = window.getComputedStyle(el);
for (const f of runElementCheck(rule.id, () => rule.run(el, tag, style, window, customPropMap))) {
// Element-scoped waivers: a data-impeccable-ignore ancestor suppresses
// matching findings for its subtree, same as the browser walk.
if (scopedIgnoreActive(el, f.id)) continue;
findings.push(finding(f.id, filePath, f.snippet));
}
}
}
if (options?.designSystem) {
const sourceDesignFindings = profileFindings(profile, {
engine: 'static-html',
phase: 'source',
ruleId: 'design-system',
target: filePath,
}, () => checkSourceDesignSystem(html, filePath, { designSystem: options.designSystem }));
const staticDesignFindings = profileFindings(profile, {
engine: 'static-html',
phase: 'page',
ruleId: 'design-system',
target: filePath,
}, () => collectStaticDesignSystemFindings(document, window, filePath, options.designSystem));
findings.push(...mergeDesignSystemFindings(staticDesignFindings, sourceDesignFindings));
}
if (isFullPage(html)) {
const runPageCheck = (ruleId, callback) => profile
? profileFindings(profile, { engine: 'static-html', phase: 'page', ruleId, target: filePath }, callback)
: callback();
for (const f of runPageCheck('typography-rules', () => checkStaticPageTypography(document, window))) {
findings.push(finding(f.id, filePath, f.snippet));
}
for (const f of runPageCheck('kicker-above-heading', () => checkKickerAboveHeadingFromDoc(document, window))) {
findings.push(finding(f.id, filePath, f.snippet));
}
for (const f of runPageCheck('numbered-section-labels', () => checkNumberedSectionLabelsFromDoc(document, window))) {
findings.push(finding(f.id, filePath, f.snippet));
}
for (const f of runPageCheck('repeated-container-text', () => checkRepeatedContainerTextFromDoc(document, window))) {
findings.push(finding(f.id, filePath, f.snippet));
}
for (const f of runPageCheck('layout-rules', () => checkPageLayout(document, window))) {
findings.push(finding(f.id, filePath, f.snippet));
}
for (const f of runPageCheck('cream-palette', () => checkCreamPalette(document, window))) {
findings.push(finding(f.id, filePath, f.snippet));
}
for (const f of runPageCheck('skipped-heading', () => checkPageQualityFromDoc(document))) {
findings.push(finding(f.id, filePath, f.snippet));
}
// Scoped corpora for the pattern checks (see buildHtmlPatternCorpora in
// rules/checks.mjs): CSS-property regexes must not fire on prose ABOUT
// css — `<code>background-clip: text</code>` in a changelog is
// documentation, not styling. cssText already carries the <style>
// blocks and any linked local stylesheets; style/class attributes come
// from the parsed document, so escaped code samples never contribute.
const styleAttrParts = [];
const classAttrParts = [];
for (const el of document.querySelectorAll('*')) {
const styleAttr = el.getAttribute('style');
if (styleAttr) styleAttrParts.push(`style="${styleAttr}"`);
const classAttr = el.getAttribute('class');
if (classAttr) classAttrParts.push(classAttr);
}
const patternCorpora = {
styleText: [cssText, ...styleAttrParts].join('\n'),
classText: classAttrParts.join('\n'),
};
for (const f of runPageCheck('html-patterns', () => checkHtmlPatterns(html, patternCorpora).filter(item =>
item.id !== 'bounce-easing' && item.id !== 'layout-transition'
))) {
// Selector-backed page findings honor scoped waivers here too, matching
// the browser pass: resolve the selector and drop the finding when an
// ignoring ancestor covers a match. Unlike the browser, an unmatched
// selector keeps the finding — static scans see partial documents.
if (f.selector) {
let matches = null;
try {
matches = document.querySelectorAll(String(f.selector).replace(/::?[a-zA-Z-]+(\([^)]*\))?/g, '').trim());
} catch { matches = null; }
if (matches && matches.length > 0 && [...matches].every(el => scopedIgnoreActive(el, f.id))) continue;
}
const item = finding(f.id, filePath, f.snippet);
// Position-aware severity promotion: checks may attach a per-finding
// severity (e.g. a pulsing dot inside a header/nav landmark) that
// overrides the registry default.
if (f.severity) item.severity = f.severity;
findings.push(deriveAdvisoryFlag(item));
}
// Text-content analyzers (em-dash overuse, marketing buzzwords,
// numbered section markers, aphoristic cadence) live in the regex
// engine. Call them from here so .html files get the same coverage
// as .css/.tsx files. These are scoped to text content only and
// don't overlap with static-html's element/page rules.
for (const f of runPageCheck('text-content', () => runTextContentAnalyzers(html, filePath, options))) {
findings.push(finding(f.antipattern, filePath, f.snippet));
}
}
// Static-HTML findings carry no line number, so only whole-file
// `impeccable-disable` directives apply here — exactly the standalone-document
// waiver this primitive targets. Bypassed by `--no-config` / `--no-inline-ignores`.
return options?.inlineIgnores === false ? findings : applyInlineIgnores(findings, html);
}
export { checkStaticPageTypography, STATIC_ELEMENT_RULES, detectHtml };
@@ -1,189 +0,0 @@
function sanitizeScreenshotClip(clip, viewport) {
if (!clip) return null;
const x = Math.max(0, Math.floor(clip.x || 0));
const y = Math.max(0, Math.floor(clip.y || 0));
const width = Math.min(
Math.max(1, Math.ceil(clip.width || 0)),
Math.max(1, viewport?.width || 1600),
);
const height = Math.min(
Math.max(1, Math.ceil(clip.height || 0)),
320,
);
if (width < 1 || height < 1) return null;
return { x, y, width, height };
}
async function compareScreenshotContrast(page, beforeBase64, afterBase64, candidate) {
return page.evaluate(async ({ beforeBase64, afterBase64, candidate }) => {
const loadImage = (base64) => new Promise((resolve, reject) => {
const img = new Image();
img.onload = () => resolve(img);
img.onerror = () => reject(new Error('Could not decode contrast screenshot'));
img.src = `data:image/png;base64,${base64}`;
});
const [before, after] = await Promise.all([loadImage(beforeBase64), loadImage(afterBase64)]);
const width = Math.min(before.width, after.width);
const height = Math.min(before.height, after.height);
if (width < 1 || height < 1) return null;
const canvas = document.createElement('canvas');
canvas.width = width;
canvas.height = height;
const ctx = canvas.getContext('2d', { willReadFrequently: true });
if (!ctx) return null;
ctx.drawImage(before, 0, 0, width, height);
const beforePixels = ctx.getImageData(0, 0, width, height).data;
ctx.clearRect(0, 0, width, height);
ctx.drawImage(after, 0, 0, width, height);
const afterPixels = ctx.getImageData(0, 0, width, height).data;
const luminance = ({ r, g, b }) => {
const convert = c => {
const v = c / 255;
return v <= 0.03928 ? v / 12.92 : ((v + 0.055) / 1.055) ** 2.4;
};
return 0.2126 * convert(r) + 0.7152 * convert(g) + 0.0722 * convert(b);
};
const ratio = (a, b) => {
const l1 = luminance(a);
const l2 = luminance(b);
return (Math.max(l1, l2) + 0.05) / (Math.min(l1, l2) + 0.05);
};
const cssTextColor = candidate.textColor && !candidate.preferRenderedForeground
? {
r: candidate.textColor.r,
g: candidate.textColor.g,
b: candidate.textColor.b,
}
: null;
const ratios = [];
let glyphPixels = 0;
let strongestDelta = 0;
for (let i = 0; i < beforePixels.length; i += 4) {
const delta = Math.abs(beforePixels[i] - afterPixels[i])
+ Math.abs(beforePixels[i + 1] - afterPixels[i + 1])
+ Math.abs(beforePixels[i + 2] - afterPixels[i + 2])
+ Math.abs(beforePixels[i + 3] - afterPixels[i + 3]);
strongestDelta = Math.max(strongestDelta, delta);
if (delta < 10) continue;
glyphPixels++;
const fg = cssTextColor || {
r: beforePixels[i],
g: beforePixels[i + 1],
b: beforePixels[i + 2],
};
const bg = {
r: afterPixels[i],
g: afterPixels[i + 1],
b: afterPixels[i + 2],
};
ratios.push(ratio(fg, bg));
}
if (ratios.length < 8) {
return {
glyphPixels,
strongestDelta,
worstRatio: null,
p10Ratio: null,
medianRatio: null,
};
}
ratios.sort((a, b) => a - b);
const pick = pct => ratios[Math.min(ratios.length - 1, Math.max(0, Math.floor((pct / 100) * ratios.length)))];
return {
glyphPixels,
strongestDelta,
worstRatio: ratios[0],
p10Ratio: pick(10),
medianRatio: pick(50),
};
}, { beforeBase64, afterBase64, candidate });
}
async function captureVisualContrastCandidate(page, candidate, viewport) {
const clip = sanitizeScreenshotClip(candidate.clip, viewport);
if (!clip) return null;
const beforeBase64 = await page.screenshot({
encoding: 'base64',
clip,
captureBeyondViewport: true,
});
const token = `impeccable-contrast-${Date.now()}-${Math.random().toString(36).slice(2)}`;
const applied = await page.evaluate(({ selector, token, backgroundClipText }) => {
let el;
try {
el = document.querySelector(selector);
} catch {
return false;
}
if (!el) return false;
let style = document.getElementById('impeccable-visual-contrast-hide-style');
if (!style) {
style = document.createElement('style');
style.id = 'impeccable-visual-contrast-hide-style';
style.textContent = [
'[data-impeccable-visual-contrast-target] {',
' color: transparent !important;',
' -webkit-text-fill-color: transparent !important;',
' text-shadow: none !important;',
'}',
'[data-impeccable-visual-contrast-target][data-impeccable-bgclip-text="true"] {',
' background-image: none !important;',
'}',
].join('\n');
document.head.appendChild(style);
}
el.setAttribute('data-impeccable-visual-contrast-target', token);
if (backgroundClipText) el.setAttribute('data-impeccable-bgclip-text', 'true');
return true;
}, {
selector: candidate.selector,
token,
backgroundClipText: candidate.backgroundClipText,
});
if (!applied) return null;
let afterBase64;
try {
afterBase64 = await page.screenshot({
encoding: 'base64',
clip,
captureBeyondViewport: true,
});
} finally {
await page.evaluate(({ selector }) => {
try {
const el = document.querySelector(selector);
if (el) {
el.removeAttribute('data-impeccable-visual-contrast-target');
el.removeAttribute('data-impeccable-bgclip-text');
}
} catch {
// Ignore invalid or stale selectors during cleanup.
}
}, { selector: candidate.selector }).catch(() => {});
}
const metrics = await compareScreenshotContrast(page, beforeBase64, afterBase64, candidate);
if (!metrics || !Number.isFinite(metrics.p10Ratio) || metrics.glyphPixels < 8) return null;
const measuredRatio = metrics.p10Ratio;
if (measuredRatio >= candidate.threshold) return null;
const textLabel = candidate.text ? ` "${candidate.text}"` : '';
const reasonLabel = (candidate.reasons || []).slice(0, 3).join(', ') || 'visual background';
return {
id: 'low-contrast',
snippet: `pixel contrast ${measuredRatio.toFixed(1)}:1 median ${metrics.medianRatio.toFixed(1)}:1 (need ${candidate.threshold}:1) on ${reasonLabel}${textLabel}`,
};
}
export {
sanitizeScreenshotClip,
compareScreenshotContrast,
captureVisualContrastCandidate,
};
-23
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@@ -1,23 +0,0 @@
import { getAntipattern } from './registry/antipatterns.mjs';
function getAP(id) {
return getAntipattern(id);
}
function deriveAdvisoryFlag(item) {
if (item.severity === 'advisory') item.advisory = true;
else delete item.advisory;
return item;
}
function finding(id, filePath, snippet, line = 0) {
const ap = getAP(id);
const base = { antipattern: id, name: ap.name, description: ap.description, severity: ap.severity || 'warning', category: ap.category || null, file: filePath, line, snippet };
// Advisory findings are detected but reported separately and never counted as
// failures. Carry the flag on the finding so every consumer (CLI, JSON, hook)
// can partition without a registry lookup. Only stamped when true to keep the
// finding shape stable for the vast majority of rules.
return deriveAdvisoryFlag(base);
}
export { getAP, finding, deriveAdvisoryFlag };
-225
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@@ -1,225 +0,0 @@
import fs from 'node:fs';
import path from 'node:path';
// ---------------------------------------------------------------------------
// File walker
// ---------------------------------------------------------------------------
// Hidden directories are skipped wholesale during recursion (below), which
// covers .git / .next / .nuxt / .svelte-kit / .turbo / .vercel and — the
// issue #303 class — every vendored AI-harness install (.claude, .cursor,
// .codex, .agents, .impeccable, ...) whose bundled detector source would
// otherwise be reported as findings on a root scan. Only the non-hidden
// build/dependency dirs need naming. An explicitly passed hidden target
// still scans: walkDir name-checks children, never the root it's given.
const SKIP_DIRS = new Set([
'node_modules', 'dist', 'build', '__pycache__',
]);
// The exceptions to the hidden-dir rule: hidden directories that
// conventionally hold real UI source rather than tooling or vendored code.
// VitePress and VuePress keep custom theme components in
// .vitepress/theme/*.vue / .vuepress/theme/, and Storybook keeps preview
// decorators/styles in .storybook/.
const HIDDEN_SOURCE_DIRS = new Set(['.vitepress', '.vuepress', '.storybook']);
const SCANNABLE_EXTENSIONS = new Set([
'.html', '.htm', '.css', '.scss', '.sass', '.less',
'.jsx', '.tsx', '.js', '.ts',
'.vue', '.svelte', '.astro', '.blade.php',
]);
const HTML_EXTENSIONS = new Set(['.html', '.htm']);
function hasScannableExtension(filename) {
const lower = filename.toLowerCase();
if (SCANNABLE_EXTENSIONS.has(path.extname(lower))) return true;
for (const ext of SCANNABLE_EXTENSIONS) {
if (ext.indexOf('.', 1) !== -1 && lower.endsWith(ext)) return true;
}
return false;
}
const IMPORT_SPECIFIER_PATTERNS = [
/import\s+(?:[\s\S]*?from\s+)?['"]([^'"]+)['"]/g,
/@import\s+(?:url\(\s*)?['"]?([^'");\s]+)['"]?\s*\)?/g,
/@(?:use|forward)\s+['"]([^'"]+)['"]/g,
];
function walkDir(dir, onReadError = null) {
const files = [];
let entries;
try {
entries = fs.readdirSync(dir, { withFileTypes: true });
} catch (error) {
if (onReadError) onReadError(dir, error);
return files;
}
for (const entry of entries) {
if (SKIP_DIRS.has(entry.name)) continue;
if (entry.isDirectory() && entry.name.startsWith('.') && !HIDDEN_SOURCE_DIRS.has(entry.name)) continue;
const full = path.join(dir, entry.name);
if (entry.isDirectory()) files.push(...walkDir(full, onReadError));
else if (hasScannableExtension(entry.name)) files.push(full);
}
return files;
}
// ---------------------------------------------------------------------------
// Import graph (multi-file awareness)
// ---------------------------------------------------------------------------
function resolveImport(specifier, fromDir, fileSet) {
if (!/^[./]/.test(specifier)) return null; // skip bare specifiers
const base = path.resolve(fromDir, specifier);
if (fileSet.has(base)) return base;
for (const ext of SCANNABLE_EXTENSIONS) {
const withExt = base + ext;
if (fileSet.has(withExt)) return withExt;
}
// index file convention
for (const ext of SCANNABLE_EXTENSIONS) {
const indexFile = path.join(base, 'index' + ext);
if (fileSet.has(indexFile)) return indexFile;
}
return null;
}
function buildImportGraph(files, onReadError = null) {
const fileSet = new Set(files);
const graph = new Map();
for (const file of files) {
let content;
try {
content = fs.readFileSync(file, 'utf-8');
} catch (error) {
if (!onReadError) throw error;
onReadError(file, error);
continue;
}
const dir = path.dirname(file);
const imports = new Set();
for (const pattern of IMPORT_SPECIFIER_PATTERNS) {
for (const match of content.matchAll(pattern)) {
const resolved = resolveImport(match[1], dir, fileSet);
if (resolved) imports.add(resolved);
}
}
graph.set(file, imports);
}
return graph;
}
// ---------------------------------------------------------------------------
// Framework dev server detection
// ---------------------------------------------------------------------------
const FRAMEWORK_CONFIGS = [
{ name: 'Next.js', files: ['next.config.js', 'next.config.mjs', 'next.config.ts'], defaultPort: 3000,
portRe: /port\s*[:=]\s*(\d+)/,
fingerprint: { header: 'x-powered-by', value: /next/i } },
{ name: 'SvelteKit', files: ['svelte.config.js', 'svelte.config.ts'], defaultPort: 5173,
portRe: /port\s*[:=]\s*(\d+)/,
fingerprint: { header: 'x-sveltekit-page', value: null } },
{ name: 'Nuxt', files: ['nuxt.config.js', 'nuxt.config.ts'], defaultPort: 3000,
portRe: /port\s*[:=]\s*(\d+)/,
fingerprint: { header: 'x-powered-by', value: /nuxt/i } },
{ name: 'Vite', files: ['vite.config.js', 'vite.config.ts', 'vite.config.mjs'], defaultPort: 5173,
portRe: /port\s*[:=]\s*(\d+)/,
fingerprint: { body: /@vite\/client/ } },
{ name: 'Astro', files: ['astro.config.js', 'astro.config.ts', 'astro.config.mjs'], defaultPort: 4321,
portRe: /port\s*[:=]\s*(\d+)/,
fingerprint: { body: /astro/i } },
{ name: 'Angular', files: ['angular.json'], defaultPort: 4200,
portRe: /"port"\s*:\s*(\d+)/,
fingerprint: { body: /ng-version/i } },
{ name: 'Remix', files: ['remix.config.js', 'remix.config.ts'], defaultPort: 3000,
portRe: /port\s*[:=]\s*(\d+)/,
fingerprint: { header: 'x-powered-by', value: /remix/i } },
];
function detectFrameworkConfig(dir) {
let entries;
try { entries = fs.readdirSync(dir); } catch { return null; }
const entrySet = new Set(entries);
for (const cfg of FRAMEWORK_CONFIGS) {
const match = cfg.files.find(f => entrySet.has(f));
if (!match) continue;
const configPath = path.join(dir, match);
let port = cfg.defaultPort;
try {
const content = fs.readFileSync(configPath, 'utf-8');
const portMatch = content.match(cfg.portRe);
if (portMatch) port = parseInt(portMatch[1], 10);
} catch { /* use default */ }
return { name: cfg.name, port, configPath, fingerprint: cfg.fingerprint };
}
return null;
}
/**
* Check if a port is listening and optionally verify it matches the expected framework.
* Returns { listening: true, matched: true/false } or { listening: false }.
*/
async function isPortListening(port, fingerprint = null) {
if (!fingerprint) {
// Simple TCP probe fallback
const net = await import('node:net');
return new Promise((resolve) => {
const sock = net.default.createConnection({ port, host: '127.0.0.1' });
sock.setTimeout(500);
sock.on('connect', () => { sock.destroy(); resolve({ listening: true, matched: true }); });
sock.on('error', () => resolve({ listening: false }));
sock.on('timeout', () => { sock.destroy(); resolve({ listening: false }); });
});
}
// HTTP probe with fingerprint matching
try {
const controller = new AbortController();
const timeout = setTimeout(() => controller.abort(), 2000);
const res = await fetch(`http://localhost:${port}/`, { signal: controller.signal, redirect: 'follow' });
clearTimeout(timeout);
// Check header fingerprint
if (fingerprint.header) {
const val = res.headers.get(fingerprint.header);
if (val && (!fingerprint.value || fingerprint.value.test(val))) {
return { listening: true, matched: true };
}
}
// Check body fingerprint
if (fingerprint.body) {
const body = await res.text();
if (fingerprint.body.test(body)) {
return { listening: true, matched: true };
}
}
// Port is listening but doesn't match the expected framework
return { listening: true, matched: false };
} catch {
return { listening: false };
}
}
export {
SKIP_DIRS,
SCANNABLE_EXTENSIONS,
HTML_EXTENSIONS,
hasScannableExtension,
walkDir,
resolveImport,
buildImportGraph,
FRAMEWORK_CONFIGS,
detectFrameworkConfig,
isPortListening,
};
-166
View File
@@ -1,166 +0,0 @@
function profileNow() {
return typeof performance !== 'undefined' && performance.now
? performance.now()
: Date.now();
}
function createDetectorProfile() {
return { events: [] };
}
function recordProfileEvent(profile, event) {
if (!profile) return;
const normalized = {
engine: event.engine || 'unknown',
phase: event.phase || 'unknown',
ruleId: event.ruleId || 'unknown',
target: event.target || '',
ms: Number.isFinite(event.ms) ? event.ms : 0,
findings: Number.isFinite(event.findings) ? event.findings : 0,
};
if (event.detail) normalized.detail = event.detail;
if (Array.isArray(event.findingIds) && event.findingIds.length) {
normalized.findingIds = event.findingIds;
}
if (typeof profile === 'function') {
profile(normalized);
} else if (typeof profile.record === 'function') {
profile.record(normalized);
} else if (Array.isArray(profile.events)) {
profile.events.push(normalized);
} else if (Array.isArray(profile)) {
profile.push(normalized);
}
}
function extractFindingIds(findings) {
if (!Array.isArray(findings) || findings.length === 0) return [];
return [...new Set(findings.map(f => f?.id || f?.type || f?.antipattern).filter(Boolean))];
}
function profileFindings(profile, meta, callback) {
if (!profile) return callback();
const started = profileNow();
const findings = callback();
recordProfileEvent(profile, {
...meta,
ms: profileNow() - started,
findings: Array.isArray(findings) ? findings.length : 0,
findingIds: extractFindingIds(findings),
});
return findings;
}
function profileStep(profile, meta, callback) {
if (!profile) return callback();
const started = profileNow();
try {
return callback();
} finally {
recordProfileEvent(profile, {
...meta,
ms: profileNow() - started,
findings: 0,
});
}
}
async function profileFindingsAsync(profile, meta, callback) {
if (!profile) return callback();
const started = profileNow();
const findings = await callback();
recordProfileEvent(profile, {
...meta,
ms: profileNow() - started,
findings: Array.isArray(findings) ? findings.length : 0,
findingIds: extractFindingIds(findings),
});
return findings;
}
async function profileStepAsync(profile, meta, callback) {
if (!profile) return callback();
const started = profileNow();
try {
return await callback();
} finally {
recordProfileEvent(profile, {
...meta,
ms: profileNow() - started,
findings: 0,
});
}
}
function percentile(sortedValues, pct) {
if (!sortedValues.length) return 0;
const idx = Math.min(
sortedValues.length - 1,
Math.max(0, Math.ceil((pct / 100) * sortedValues.length) - 1),
);
return sortedValues[idx];
}
function summarizeDetectorProfile(profile) {
const events = Array.isArray(profile)
? profile
: (Array.isArray(profile?.events) ? profile.events : []);
const groups = new Map();
for (const event of events) {
const key = [
event.engine || 'unknown',
event.phase || 'unknown',
event.ruleId || 'unknown',
event.target || '',
].join('\u0000');
let group = groups.get(key);
if (!group) {
group = {
engine: event.engine || 'unknown',
phase: event.phase || 'unknown',
ruleId: event.ruleId || 'unknown',
target: event.target || '',
calls: 0,
totalMs: 0,
findings: 0,
samples: [],
};
groups.set(key, group);
}
const ms = Number.isFinite(event.ms) ? event.ms : 0;
group.calls += 1;
group.totalMs += ms;
group.findings += Number.isFinite(event.findings) ? event.findings : 0;
group.samples.push(ms);
}
return [...groups.values()]
.map(group => {
const samples = group.samples.sort((a, b) => a - b);
return {
engine: group.engine,
phase: group.phase,
ruleId: group.ruleId,
target: group.target,
calls: group.calls,
totalMs: Number(group.totalMs.toFixed(3)),
avgMs: Number((group.totalMs / group.calls).toFixed(3)),
p50: Number(percentile(samples, 50).toFixed(3)),
p95: Number(percentile(samples, 95).toFixed(3)),
findings: group.findings,
};
})
.sort((a, b) => b.totalMs - a.totalMs);
}
export {
profileNow,
createDetectorProfile,
recordProfileEvent,
extractFindingIds,
profileFindings,
profileStep,
profileFindingsAsync,
profileStepAsync,
percentile,
summarizeDetectorProfile,
};
-636
View File
@@ -1,636 +0,0 @@
const ANTIPATTERNS = [
// ── AI slop: tells that something was AI-generated ──
{
id: 'side-tab',
category: 'slop',
name: 'Side-tab accent border',
description:
'Thick colored border on one side of a card — the most recognizable tell of AI-generated UIs. Use a subtler accent or remove it entirely.',
skillSection: 'Visual Details',
skillGuideline: 'colored accent stripe',
},
{
id: 'border-accent-on-rounded',
category: 'slop',
name: 'Border accent on rounded element',
description:
'Thick accent border on a rounded card — the border clashes with the rounded corners. Remove the border or the border-radius.',
skillSection: 'Visual Details',
skillGuideline: 'colored accent stripe',
},
{
id: 'overused-font',
category: 'slop',
scopes: ['type'],
name: 'Overused font',
description:
'Inter, Roboto, Fraunces, Geist, Plus Jakarta Sans, and Space Grotesk are used on so many sites they no longer feel distinctive. Each new wave of AI-generated UIs converges on the same handful of faces. Choose a face that gives your interface personality.',
skillSection: 'Typography',
skillGuideline: 'overused fonts like Inter',
},
{
id: 'flat-type-hierarchy',
category: 'slop',
scopes: ['type'],
name: 'Flat type hierarchy',
description:
'Dominant heading and body roles are separated by less than 1.25× at every step, leaving the size hierarchy flat. Add at least one stronger size step.',
skillSection: 'Typography',
skillGuideline: 'flat type hierarchy',
},
{
id: 'gradient-text',
category: 'slop',
name: 'Gradient text',
description:
'Gradient text is decorative rather than meaningful — a common AI tell, especially on headings and metrics. Use solid colors for text.',
skillSection: 'Color & Contrast',
skillGuideline: 'gradient text for',
},
{
id: 'ai-color-palette',
category: 'slop',
name: 'AI color palette',
description:
'Purple/violet gradients and cyan-on-dark are the most recognizable tells of AI-generated UIs. Choose a distinctive, intentional palette.',
skillSection: 'Color & Contrast',
skillGuideline: 'AI color palette',
},
{
id: 'cream-palette',
category: 'slop',
name: 'Cream / beige palette',
description:
'A warm cream or beige page background has become the default "tasteful" AI surface, reached for by reflex. Choose a background that comes from a deliberate palette, not the safe warm off-white.',
skillSection: 'Color & Contrast',
skillGuideline: 'cream and beige as the default surface',
},
{
id: 'nested-cards',
category: 'slop',
scopes: ['layout'],
name: 'Nested cards',
description:
'Cards inside cards create visual noise and excessive depth. Flatten the hierarchy — use spacing, typography, and dividers instead of nesting containers.',
skillSection: 'Layout & Space',
skillGuideline: 'Nest cards inside cards',
},
{
id: 'monotonous-spacing',
category: 'slop',
scopes: ['layout'],
name: 'Monotonous spacing',
description:
'The same spacing value used everywhere — no rhythm, no variation. Use tight groupings for related items and generous separations between sections.',
skillSection: 'Layout & Space',
skillGuideline: 'same spacing everywhere',
},
{
id: 'bounce-easing',
category: 'slop',
name: 'Bounce or elastic easing',
description:
'Bounce and elastic easing feel dated and tacky. Real objects decelerate smoothly — use exponential easing (ease-out-quart/quint/expo) instead.',
skillSection: 'Motion',
skillGuideline: 'bounce or elastic easing',
},
{
id: 'pulsing-dot',
category: 'slop',
name: 'Pulsing status dot',
description:
'Small pulsing status dots simulate liveness decoratively. Reserve pulse animation for indicators tied to genuinely live, changing data; a static indicator with clear labeling is honest and calmer.',
skillSection: 'Motion',
skillGuideline: 'decorative pulsing status dot',
},
{
id: 'blinking-cursor',
category: 'slop',
severity: 'advisory',
name: 'Decorative blinking cursor',
description:
'A blinking text cursor animated into a hero or landing section simulates typing where no input exists. It borrows the dev-tool aesthetic as decoration. Real editable fields draw their own caret; anywhere else, let the composition hold attention without a fake prompt.',
skillSection: 'Motion',
},
{
id: 'shape-assembled-illustration',
category: 'slop',
severity: 'advisory',
name: 'Shape-assembled illustration',
description:
'A large inline SVG that builds a pictorial scene from a pile of primitive shapes reads as placeholder clip art, not illustration. Icons, logos, and data graphics are fine at their scale; a hero-sized visual deserves real artwork, a photograph, or a deliberately drawn graphic.',
skillSection: 'Imagery',
},
{
id: 'organic-clip-path',
category: 'quality',
name: 'Organic contour drawn as clip-path',
description:
'A clip-path polygon with many arbitrary vertices, or a curved clip-path path(), is CSS approximating a torn edge, blob, or silhouette. It reads as the cheap version of the effect and is usually a produced or photographic material replaced with code. Derive an alpha matte from the real image, or ship the shape as a cut-out raster; keep clip-path for geometry (cut corners, diagonals, hexagons).',
skillSection: 'Imagery',
skillGuideline: 'geometric masks standing in for organic contours',
},
{
id: 'buried-raster',
category: 'quality',
name: 'Raster buried under a wash or opacity',
description:
'A background image under a near-opaque gradient wash, or a raster on an element at near-zero opacity, never reaches the screen: the page shows the wash, and the produced texture or photo ships as a compliance token. Let the material show (a tint under 0.9 alpha, a blend mode, an opacity you can see) or remove the file.',
skillSection: 'Imagery',
skillGuideline: 'a produced material must survive to the screen',
},
{
id: 'dark-glow',
category: 'slop',
name: 'Glowing shadow accents',
description:
'Colored glow shadows — a zero-offset chromatic halo (box- or text-shadow) on any background, or any colored blurred shadow on a dark background — are the default "cool" look of AI-generated UIs. Use neutral elevation shadows and subtle, purposeful lighting instead.',
skillSection: 'Color & Contrast',
skillGuideline: 'dark mode with glowing accents',
},
{
id: 'radial-halo',
category: 'slop',
name: 'Radial-gradient background halo',
description:
'A chromatic radial-gradient wash — saturated at the center, fading to transparent — used as a decorative background glow on a dark page. Same tell as glowing shadows, drawn with a gradient instead of a shadow. Ground the surface with a solid or subtly shifted background instead.',
skillSection: 'Color & Contrast',
skillGuideline: 'dark mode with glowing accents',
},
{
id: 'radial-spotlight-glow',
category: 'slop',
name: 'Decorative radial spotlight glow',
description:
'A soft, low-opacity accent-colored radial gradient fading to transparent, dropped behind a hero or section as a "spotlight." It is a reflex AI decoration — the translucent cousin of the saturated radial halo. Let the surface stand on its own, or light the composition with a deliberate material accent rather than a floating colored haze.',
skillSection: 'Color & Contrast',
skillGuideline: 'dark mode with glowing accents',
},
{
id: 'marquee',
category: 'slop',
name: 'Auto-scrolling marquee',
description:
'Continuously auto-scrolling content demands attention it has not earned and hides half its content at any moment. Reserve motion for content that changes; let readers move at their own pace.',
skillSection: 'Motion',
skillGuideline: 'auto-scrolling marquee',
},
{
id: 'icon-tile-stack',
category: 'slop',
scopes: ['layout'],
name: 'Icon tile stacked above heading',
description:
'A small rounded-square icon container above a heading is the universal AI feature-card template — every generator outputs this exact shape. Try a side-by-side icon and heading, or let the icon sit in flow without its own container.',
skillSection: 'Typography',
skillGuideline: 'large icons with rounded corners above every heading',
},
{
id: 'italic-serif-display',
category: 'slop',
scopes: ['type'],
name: 'Italic serif display headline',
description:
'Oversized italic serif (Fraunces, Recoleta, Playfair, Newsreader-italic) as the primary hero headline reads as taste in isolation but has become the universal AI-startup landing page hero. Set roman, or move to a non-serif display face. Editorial / magazine register may legitimately want this — judge by context.',
skillSection: 'Typography',
skillGuideline: 'oversized italic serif as the hero headline',
},
{
id: 'hero-eyebrow-chip',
category: 'slop',
scopes: ['type'],
name: 'Hero eyebrow / pill chip',
description:
'A tiny uppercase letter-spaced label sitting immediately above an oversized hero headline — or the same shape rendered as a pill chip — is now the default AI SaaS hero. Drop the eyebrow, integrate the kicker into the headline, or run it as a navigation breadcrumb instead.',
skillSection: 'Typography',
skillGuideline: 'tiny uppercase tracked label above the hero headline',
},
{
id: 'kicker-above-heading',
category: 'slop',
scopes: ['type'],
name: 'Kicker / eyebrow label above heading',
description:
'A tiny tracked uppercase or small-caps label sitting as its own block directly above a heading is banned outright, repeated or not. Generated kickers never earn their place: the heading carries its own weight. Delete the label and let the heading speak; if the words matter, work them into the heading or the body.',
skillSection: 'Typography',
skillGuideline: 'kicker or eyebrow labels above headings',
},
{
id: 'numbered-section-labels',
category: 'slop',
scopes: ['type'],
severity: 'advisory',
name: 'Tiny numbered section labels',
description:
'Small numeric index labels riding next to section headings, repeated section after section, are AI editorial scaffolding — a page numbering its own chapters instead of earning structure. Let hierarchy, content, and rhythm carry the sequence.',
skillSection: 'Layout & Space',
skillGuideline: 'numbered section markers',
},
{
id: 'em-dash-overuse',
category: 'slop',
// Advisory: humans use em-dashes legitimately, so this rule is opt-in noise
// rather than a failure. It fires only on the AI saturation pattern, not on
// ordinary prose. Advisory findings are surfaced separately, never counted
// as failures, and skipped by the design hook unless a project opts in.
severity: 'advisory',
name: 'Em-dash overuse',
description:
'Em-dash saturation in body copy is an AI cadence tell. Advisory only: humans use em-dashes legitimately, so this fires only on saturation — at least 8 em-dashes (— or --) at a density near one per 500 characters of body text — never on a long article that uses a few. Prefer commas, colons, periods, or parentheses.',
skillSection: 'Copy',
skillGuideline: 'no em dashes',
},
{
id: 'marketing-buzzword',
category: 'slop',
name: 'Marketing buzzword',
description:
'Generic SaaS phrases (streamline / empower / supercharge / world-class / enterprise-grade / next-generation / cutting-edge / etc) are instant AI tells. Pick a specific verb and noun that says what the product literally does.',
skillSection: 'Copy',
skillGuideline: 'marketing buzzwords',
},
{
id: 'aphoristic-cadence',
category: 'slop',
name: 'Aphoristic-cadence copy',
description:
'Three or more sections landing on a short rebuttal sentence ("X. No Y." / "X. Just Y.") or a manufactured-contrast aphorism ("Not a feature. A platform.") reads as AI cadence, not voice. Once is fine; the pattern is the tell.',
skillSection: 'Copy',
skillGuideline: 'aphoristic cadence',
},
{
id: 'oversized-h1',
category: 'slop',
scopes: ['type'],
name: 'Oversized hero headline',
description:
'A full-sentence headline set at display size ends up dominating the viewport, leaving no room for anything else above the fold. A punchy one- or two-word headline at that size is fine — the problem is a long headline blown up too large. Set long headlines smaller, or tighten the copy.',
skillSection: 'Typography',
skillGuideline: 'long headline set at display size',
},
{
id: 'extreme-negative-tracking',
category: 'slop',
scopes: ['type'],
name: 'Crushed letter spacing',
description:
'Letter-spacing pulled tighter than the point where characters keep their own shapes costs legibility. Tighten display type optically, not destructively.',
skillSection: 'Typography',
skillGuideline: 'letter spacing crushed past legibility',
},
{
id: 'broken-image',
category: 'quality',
name: 'Broken or placeholder image',
description:
'<img> tags with empty src, missing src, or placeholder values ship as broken-image boxes. Use real images, generated assets, or remove the tag.',
skillSection: 'Imagery',
skillGuideline: 'broken image references',
},
// ── Quality: general design and accessibility issues ──
{
id: 'script-error',
category: 'quality',
severity: 'error',
name: 'Uncaught script error on load',
description:
'A script threw an uncaught exception or failed to parse while the page loaded. Broken JavaScript silently kills reveals, interactions, and dynamic content, and can leave most of a page invisible. Fix the error before judging anything else.',
},
{
id: 'content-hidden-at-rest',
category: 'quality',
severity: 'error',
scopes: ['layout'],
name: 'Content invisible at rest',
description:
'A large share of the page text sits at opacity 0 or visibility hidden even after every reveal handler had a chance to run. This is the failed-reveal signature: the content shipped but never becomes visible. Make content visible by default and let JavaScript enhance its entrance instead of gating its existence.',
},
{
id: 'edge-flush-cards',
category: 'quality',
scopes: ['layout'],
name: 'Cards flush against the scroller edge',
description:
'Cards inside a horizontal scroller or tab panel sit flush against the container edge at rest while keeping a gutter on the other side, so their edges and rounded corners get cut off. Usually the panel is sized wider than its clip box. Keep a consistent inset on both sides.',
},
{
id: 'text-occlusion',
category: 'quality',
scopes: ['layout'],
name: 'Text occluded by an overlapping element',
description:
'Text is painted under an opaque element or a second text run, so part of it cannot be read. A decorative box, a stacked layer, or an inline element with leaked padding lands on the words instead of beside them. Give overlapping layers room, or move the text out from under the layer above it.',
skillSection: 'Layout & Space',
},
{
id: 'first-viewport-column-overflow',
category: 'quality',
scopes: ['layout'],
name: 'One column stretches the first viewport',
description:
'A multi-column opening section lets one column run far past the fold while its sibling fits in a single viewport, so the short column floats in dead space and the fold falls deep inside one section. Balance the columns, cap the tall one, or let the long content flow below the opening row.',
skillSection: 'Layout & Space',
},
{
id: 'gray-on-color',
category: 'quality',
name: 'Gray text on colored background',
description:
'Gray text looks washed out on colored backgrounds. Use a darker shade of the background color instead, or white/near-white for contrast.',
skillSection: 'Color & Contrast',
skillGuideline: 'gray text on colored backgrounds',
},
{
id: 'low-contrast',
category: 'quality',
name: 'Low contrast text',
description:
'Text does not meet WCAG AA contrast requirements (4.5:1 for body, 3:1 for large text). Increase the contrast between text and background.',
},
{
id: 'layout-transition',
category: 'quality',
name: 'Layout property animation',
description:
'Animating width, height, padding, or margin causes layout thrash and janky performance. Use transform and opacity instead, or grid-template-rows for height animations.',
skillSection: 'Motion',
skillGuideline: 'Animate layout properties',
},
{
id: 'line-length',
category: 'quality',
scopes: ['type', 'layout'],
name: 'Line length too long',
description:
'Text lines wider than ~80 characters are hard to read. The eye loses its place tracking back to the start of the next line. Add a max-width (65ch to 75ch) to text containers.',
skillSection: 'Layout & Space',
skillGuideline: 'wrap beyond ~80 characters',
},
{
id: 'cramped-padding',
category: 'quality',
scopes: ['layout'],
name: 'Cramped padding',
description:
'Text is too close to the edge of its container. Two shapes: (1) an element with its own text where the padding is too low for the font size, and (2) a wrapper with text-bearing children and near-zero padding against a visible boundary (border, outline, or non-transparent background) — children land flush against the boundary line. Add at least 8px (ideally 1216px) of padding inside bordered, outlined, or colored containers.',
skillSection: 'Layout & Space',
skillGuideline: 'inside bordered or colored containers',
},
{
id: 'body-text-viewport-edge',
category: 'quality',
scopes: ['layout'],
name: 'Body text touching viewport edge',
description:
'Body paragraphs render flush against the left or right viewport edge with no container providing horizontal padding. Wrap content in a container with at least 16px (ideally 24-32px) of horizontal padding, or apply max-width with mx-auto.',
},
{
id: 'tight-leading',
category: 'quality',
scopes: ['type'],
name: 'Tight line height',
description:
'Line height below 1.3x the font size makes multi-line text hard to read. Use 1.5 to 1.7 for body text so lines have room to breathe.',
},
{
id: 'skipped-heading',
category: 'quality',
scopes: ['type'],
name: 'Skipped heading level',
description:
'Heading levels should not skip (e.g. h1 then h3 with no h2). Screen readers use heading hierarchy for navigation. Skipping levels breaks the document outline.',
},
{
id: 'heading-rhythm',
category: 'quality',
scopes: ['layout', 'type'],
name: 'Heading crowded against the previous block',
description:
'A heading binds to the content it introduces, so the rendered space above it should exceed the space below it. When headings across a page sit as close or closer to the block above than to their own content, every section reads as if it captions the previous one. Open up the space above each heading.',
skillSection: 'Layout & Space',
},
{
id: 'justified-text',
category: 'quality',
scopes: ['type'],
name: 'Justified text',
description:
'Justified text without hyphenation creates uneven word spacing ("rivers of white"). Use text-align: left for body text, or enable hyphens: auto if you must justify.',
},
{
id: 'tiny-text',
category: 'quality',
scopes: ['type'],
name: 'Tiny body text',
description:
'Body text below 12px is hard to read, especially on high-DPI screens. Use at least 14px for body content, 16px is ideal.',
},
{
id: 'undersized-ui-text',
category: 'quality',
scopes: ['type'],
name: 'Undersized functional text',
description:
'Interactive and content-bearing UI text (links, buttons, nav items, labels, table cells, meta rows, timecodes) below 11px is a legibility failure, not a style choice. WCAG sets no absolute pixel floor, but functional text under 11px is a defensible quality bar: it fails on high-DPI and small viewports and it degrades tap and read targets. The 11px floor holds even inside a footer; only non-interactive legal smallprint gets the softer 10px floor. Being ON the DESIGN.md size ramp does not exempt a value here: adding 8px to the ramp launders the token but not the legibility problem, and that is exactly the escape hatch this rule closes. Exempts sup/sub, visually-hidden (sr-only) text, and code/terminal contexts. Decorative letterspaced micro-labels are still functional and stay in scope.',
},
{
id: 'all-caps-body',
category: 'quality',
scopes: ['type'],
name: 'All-caps body text',
description:
'Long passages in uppercase are hard to read. We recognize words by shape (ascenders and descenders), which all-caps removes. Reserve uppercase for short labels and headings.',
skillSection: 'Typography',
skillGuideline: 'long body passages in uppercase',
},
{
id: 'wide-tracking',
category: 'quality',
scopes: ['type'],
name: 'Wide letter spacing on body text',
description:
'Letter spacing above 0.05em on body text disrupts natural character groupings and slows reading. Reserve wide tracking for short uppercase labels only.',
},
{
id: 'text-overflow',
category: 'quality',
scopes: ['layout'],
name: 'Content overflowing its container',
description:
'Content renders wider than its container, spilling out or forcing a horizontal scrollbar. Let text wrap, constrain widths, or give the region a deliberate scroll affordance.',
skillSection: 'Layout & Space',
skillGuideline: 'content wider than its container',
},
{
id: 'repeated-container-text',
category: 'quality',
name: 'Same text repeated inside one container',
description:
'The same literal text rendered three or more times in structurally different spots inside a single card or panel is redundant messaging — usually a status or label wired into every slot of a template. Say it once, in the slot where it matters most.',
},
{
id: 'clipped-overflow-container',
category: 'quality',
scopes: ['layout'],
name: 'Positioned child clipped by overflow container',
description:
'A clipping container (overflow hidden or clip) wrapping an absolutely-positioned child cuts off tooltips, menus, and popovers that need to escape. Let the overflow be visible, or move the positioned layer out of the clip.',
skillSection: 'Layout & Space',
skillGuideline: 'overflow container clipping positioned children',
},
{
id: 'design-system-font',
category: 'quality',
scopes: ['type'],
name: 'Font outside DESIGN.md',
description:
'A font is used that is not declared in DESIGN.md typography. Use the documented type system or update DESIGN.md if this is an intentional brand addition.',
skillSection: 'Typography',
skillGuideline: 'font family outside the project design system',
},
{
id: 'design-system-color',
category: 'quality',
severity: 'advisory',
name: 'Color outside DESIGN.md',
description:
'A literal color is outside the DESIGN.md palette and sidecar tonal ramps. This may be legitimate, but it should be an intentional design-system addition rather than drift.',
skillSection: 'Color & Contrast',
skillGuideline: 'literal color outside the project design system',
},
{
id: 'design-system-radius',
category: 'quality',
severity: 'advisory',
name: 'Radius outside DESIGN.md',
description:
'A border-radius value is outside the DESIGN.md rounded scale. Use a documented radius token or update the design system if the new shape is intentional.',
skillSection: 'Visual Details',
skillGuideline: 'border radius outside the project design system',
},
{
id: 'design-system-font-size',
category: 'quality',
severity: 'advisory',
scopes: ['type'],
name: 'Font size outside DESIGN.md',
description:
'A literal font-size is off the type ramp documented in DESIGN.md typography. Use a documented size step or update the design system if the new step is intentional.',
skillSection: 'Typography',
skillGuideline: 'font size outside the project design system',
},
// ── Common generated-UI tells ───────────────────────────────────────────
{
id: 'gpt-thin-border-wide-shadow',
category: 'slop',
severity: 'advisory',
name: 'Hairline border with wide shadow',
description:
'A hairline border paired with a wide, diffuse shadow is a recurring generated-UI signature. Commit to one — a defined edge or a soft elevation — rather than both at once.',
skillSection: 'Visual Details',
skillGuideline: 'hairline border plus wide diffuse shadow',
},
{
id: 'repeating-stripes-gradient',
category: 'slop',
severity: 'advisory',
name: 'Repeating-gradient stripes',
description:
'Repeating-gradient stripes used as surface decoration are a recurring generated-UI signature. Reach for a deliberate texture or leave the surface plain.',
skillSection: 'Visual Details',
skillGuideline: 'repeating-gradient decorative stripes',
},
{
id: 'codex-grid-background',
category: 'slop',
severity: 'advisory',
name: 'Decorative grid-line background',
description:
'A decorative grid or line-field background drawn with hairline linear-gradient layers tiled by a fixed pixel cell is a recurring generated-UI signature. Reserve grid overlays for actual canvas, map, blueprint, or measurement surfaces; elsewhere use product structure or a plain surface.',
skillSection: 'Visual Details',
skillGuideline: 'two-axis grid-line gradient background',
},
{
id: 'theater-slop-phrase',
category: 'slop',
severity: 'advisory',
name: 'Theater framing copy',
description:
'Dismissing something as "theater" is a recurring generated-copy tic. Say plainly what the thing does or does not do.',
skillSection: 'Copy',
skillGuideline: 'theater framing copy',
},
{
id: 'image-hover-transform',
category: 'slop',
severity: 'advisory',
name: 'Image hover transform',
description:
'Scaling or rotating an image on hover is a recurring generated-UI signature. Let imagery sit still, or use a subtler, purposeful interaction.',
skillSection: 'Motion',
skillGuideline: 'image scale or rotate on hover',
},
];
const RULE_ENGINE_SUPPORT = {
regex: new Set(['source', 'page-analyzer']),
'static-html': new Set(['element', 'page']),
browser: new Set(['element', 'page', 'layout']),
visual: new Set(['visual-contrast']),
};
function getAntipattern(id) {
return ANTIPATTERNS.find(rule => rule.id === id);
}
// Advisory rules are detected and reported, but never treated as failures:
// the CLI lists them under a separate "Advisory" section, they do not affect
// exit codes or the failure count, and the design hook skips them by default.
// `severity` is the canonical registry field. The runtime finding serializer
// derives its `advisory: true` compatibility/output flag from this set.
const ADVISORY_RULE_IDS = new Set(
ANTIPATTERNS.filter(rule => rule.severity === 'advisory').map(rule => rule.id),
);
function isAdvisoryRule(id) {
return ADVISORY_RULE_IDS.has(id);
}
function getRulesForCategory(category) {
return ANTIPATTERNS.filter(rule => rule.category === category);
}
function getRuleEngineSupport(engine) {
return RULE_ENGINE_SUPPORT[engine] || new Set();
}
// Set of scope tags rules can declare (e.g. 'type', 'layout'). Used by the
// CLI --scope flag to narrow output to one design domain.
const RULE_SCOPES = new Set(
ANTIPATTERNS.flatMap(rule => rule.scopes || []),
);
// Keep only findings whose rule declares at least one of the requested
// scopes. An empty scope list means no filtering (default CLI behavior).
function filterByScopes(findings, scopes = []) {
if (!scopes || scopes.length === 0) return findings;
const enabled = new Set(scopes);
return findings.filter(f => {
const rule = getAntipattern(f.antipattern);
return (rule?.scopes || []).some(scope => enabled.has(scope));
});
}
export {
ANTIPATTERNS,
RULE_SCOPES,
RULE_ENGINE_SUPPORT,
ADVISORY_RULE_IDS,
getAntipattern,
getRulesForCategory,
getRuleEngineSupport,
isAdvisoryRule,
filterByScopes,
};
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// ─── Section 2: Color Utilities ─────────────────────────────────────────────
function isNeutralColor(color) {
if (!color || color === 'transparent') return true;
// rgb/rgba — use channel spread. Threshold 30 ≈ 11.7% of the 0255 range.
const rgb = color.match(/rgba?\((\d+),\s*(\d+),\s*(\d+)/);
if (rgb) {
return (Math.max(+rgb[1], +rgb[2], +rgb[3]) - Math.min(+rgb[1], +rgb[2], +rgb[3])) < 30;
}
// oklch()/lch() — chroma is the second numeric component.
// oklch chroma is ~00.4 in sRGB gamut; >= 0.02 reads as tinted, not gray.
// lch chroma is ~0150; >= 3 reads as tinted. jsdom emits both formats
// literally (it does NOT convert them to rgb).
const oklch = color.match(/oklch\(\s*[\d.]+%?\s*([\d.-]+)/i);
if (oklch) return parseFloat(oklch[1]) < 0.02;
const lch = color.match(/lch\(\s*[\d.]+%?\s*([\d.-]+)/i);
if (lch) return parseFloat(lch[1]) < 3;
// oklab()/lab() — a and b are signed axes; chroma = sqrt(a² + b²).
// oklab a/b are ~-0.4..0.4, threshold 0.02. lab a/b are ~-128..127, threshold 3.
const oklab = color.match(/oklab\(\s*[\d.]+%?\s*([\d.-]+)\s+([\d.-]+)/i);
if (oklab) {
const a = parseFloat(oklab[1]), b = parseFloat(oklab[2]);
return Math.hypot(a, b) < 0.02;
}
const lab = color.match(/lab\(\s*[\d.]+%?\s*([\d.-]+)\s+([\d.-]+)/i);
if (lab) {
const a = parseFloat(lab[1]), b = parseFloat(lab[2]);
return Math.hypot(a, b) < 3;
}
// hsl/hsla — saturation is the second numeric component (percent).
// Modern jsdom usually converts hsl() to rgb, but handle it directly for
// safety across versions and for any engine that preserves the format.
const hsl = color.match(/hsla?\(\s*[\d.-]+\s*,?\s*([\d.]+)%/i);
if (hsl) return parseFloat(hsl[1]) < 10;
// hwb(hue whiteness% blackness%) — a pixel is fully gray when
// whiteness + blackness >= 100; chroma-like saturation = 1 - (w+b)/100.
const hwb = color.match(/hwb\(\s*[\d.-]+\s+([\d.]+)%\s+([\d.]+)%/i);
if (hwb) {
const w = parseFloat(hwb[1]), b = parseFloat(hwb[2]);
return (1 - Math.min(100, w + b) / 100) < 0.1;
}
// Unknown / unrecognized format — err on the side of DETECTING rather
// than silently skipping. This is the opposite of the previous default,
// which was the root cause of the oklch bug.
return false;
}
function parseRgb(color) {
if (!color || color === 'transparent') return null;
const m = color.match(/rgba?\((\d+),\s*(\d+),\s*(\d+)(?:,\s*([\d.]+))?\)/);
if (!m) return null;
return { r: +m[1], g: +m[2], b: +m[3], a: m[4] !== undefined ? +m[4] : 1 };
}
function relativeLuminance({ r, g, b }) {
const [rs, gs, bs] = [r / 255, g / 255, b / 255].map(c =>
c <= 0.03928 ? c / 12.92 : ((c + 0.055) / 1.055) ** 2.4
);
return 0.2126 * rs + 0.7152 * gs + 0.0722 * bs;
}
function contrastRatio(c1, c2) {
const l1 = relativeLuminance(c1);
const l2 = relativeLuminance(c2);
return (Math.max(l1, l2) + 0.05) / (Math.min(l1, l2) + 0.05);
}
// The CSS color functions worth pulling out of a longer declaration. The set
// is deliberately closed: `linear-gradient(` and `url(` also look like
// `name(` and must not be read as colors.
const COLOR_FUNCTION_NAMES = new Set([
'rgb', 'rgba', 'hsl', 'hsla', 'hwb', 'oklch', 'oklab', 'lch', 'lab', 'color', 'color-mix',
]);
// Pull every color-function token out of a value, with balanced-paren capture
// so nested forms (`color-mix(in oklab, oklch(...) 20%, transparent)`) survive
// whole. Returns the raw substrings in source order.
function extractColorFunctionTokens(value) {
const str = String(value || '');
const tokens = [];
const re = /([a-z][a-z-]*)\(/gi;
let m;
while ((m = re.exec(str)) !== null) {
if (!COLOR_FUNCTION_NAMES.has(m[1].toLowerCase())) continue;
let depth = 0, end = -1;
for (let i = m.index + m[0].length - 1; i < str.length; i++) {
if (str[i] === '(') depth++;
else if (str[i] === ')') { depth--; if (depth === 0) { end = i; break; } }
}
if (end < 0) break;
tokens.push(str.slice(m.index, end + 1));
re.lastIndex = end + 1;
}
return tokens;
}
function parseGradientColors(bgImage) {
if (!bgImage || !bgImage.includes('gradient')) return [];
const colors = [];
const tokenSpans = [];
let from = 0;
// Stops arrive in whatever syntax the author wrote and the browser kept.
// A dark ground painted as `linear-gradient(oklch(...), oklch(...))` used
// to read as a gradient with no stops at all.
for (const token of extractColorFunctionTokens(bgImage)) {
const start = bgImage.indexOf(token, from);
if (start < 0) break;
tokenSpans.push({ start, end: start + token.length });
from = start + token.length;
const c = parseAnyColor(token);
if (c) colors.push(c);
}
for (const m of bgImage.matchAll(/#([0-9a-f]{6}|[0-9a-f]{3})\b/gi)) {
// Nested hex inside color-mix is an ingredient, not a stop (issue #578).
if (tokenSpans.some(s => m.index >= s.start && m.index < s.end)) continue;
const h = m[1];
if (h.length === 6) {
colors.push({ r: parseInt(h.slice(0,2),16), g: parseInt(h.slice(2,4),16), b: parseInt(h.slice(4,6),16), a: 1 });
} else {
colors.push({ r: parseInt(h[0]+h[0],16), g: parseInt(h[1]+h[1],16), b: parseInt(h[2]+h[2],16), a: 1 });
}
}
return colors;
}
function hasChroma(c, threshold = 30) {
if (!c) return false;
return (Math.max(c.r, c.g, c.b) - Math.min(c.r, c.g, c.b)) >= threshold;
}
function getHue(c) {
if (!c) return 0;
const r = c.r / 255, g = c.g / 255, b = c.b / 255;
const max = Math.max(r, g, b), min = Math.min(r, g, b);
if (max === min) return 0;
const d = max - min;
let h;
if (max === r) h = ((g - b) / d + (g < b ? 6 : 0)) / 6;
else if (max === g) h = ((b - r) / d + 2) / 6;
else h = ((r - g) / d + 4) / 6;
return Math.round(h * 360);
}
function colorToHex(c) {
if (!c) return '?';
return '#' + [c.r, c.g, c.b].map(v => v.toString(16).padStart(2, '0')).join('');
}
// ─── Color-space conversions ────────────────────────────────────────────────
//
// Every function here lands on 8-bit sRGB, clamped to gamut. Chrome, Safari,
// and Firefox all keep the authored color space in getComputedStyle output
// (`oklch(0.84 0.19 80.46)`, `lch(20 5 60)`, `color(srgb 1.04 0.72 -0.21)`),
// so a detector that only reads rgb() is blind on any modern palette. The
// expected outputs are pinned in tests/detect-antipatterns.test.js against
// what Chrome itself paints for the same strings.
function clamp01(x) {
return Number.isFinite(x) ? Math.max(0, Math.min(1, x)) : 0;
}
// Linear-light sRGB channel to the encoded 0-255 value.
function encodeSrgbChannel(x) {
const c = clamp01(x);
return Math.round((c <= 0.0031308 ? 12.92 * c : 1.055 * Math.pow(c, 1 / 2.4) - 0.055) * 255);
}
function decodeSrgbChannel(x) {
const c = Number.isFinite(x) ? x : 0;
const sign = c < 0 ? -1 : 1;
const abs = Math.abs(c);
return sign * (abs <= 0.04045 ? abs / 12.92 : Math.pow((abs + 0.055) / 1.055, 2.4));
}
function linearSrgbToColor(r, g, b, a = 1) {
return { r: encodeSrgbChannel(r), g: encodeSrgbChannel(g), b: encodeSrgbChannel(b), a };
}
// OKLab to sRGB (Björn Ottosson's matrices). L in 0..1, a/b are signed axes.
function oklabToRgb(L, a, b) {
const l_ = L + 0.3963377774 * a + 0.2158037573 * b;
const m_ = L - 0.1055613458 * a - 0.0638541728 * b;
const s_ = L - 0.0894841775 * a - 1.2914855480 * b;
const lc = l_ * l_ * l_, mc = m_ * m_ * m_, sc = s_ * s_ * s_;
return linearSrgbToColor(
4.0767416621 * lc - 3.3077115913 * mc + 0.2309699292 * sc,
-1.2684380046 * lc + 2.6097574011 * mc - 0.3413193965 * sc,
-0.0041960863 * lc - 0.7034186147 * mc + 1.7076147010 * sc,
);
}
// OKLCH to sRGB. L in 0..1, C in 0..~0.4 typical, H in degrees. Chroma past
// the sRGB gamut clamps per channel rather than producing NaN.
function oklchToRgb(L, C, H) {
const hRad = (H * Math.PI) / 180;
return oklabToRgb(L, C * Math.cos(hRad), C * Math.sin(hRad));
}
// CIE Lab to sRGB. CSS lab()/lch() use the D50 white point; the matrix below
// is the Bradford-adapted XYZ-D50 to linear-sRGB transform from CSS Color 4.
function labToRgb(L, a, b) {
const kappa = 24389 / 27, epsilon = 216 / 24389;
const fy = (L + 16) / 116, fx = fy + a / 500, fz = fy - b / 200;
const invert = (t) => (t * t * t > epsilon ? t * t * t : (116 * t - 16) / kappa);
const yr = L > kappa * epsilon ? Math.pow((L + 16) / 116, 3) : L / kappa;
const Xn = 0.3457 / 0.3585, Zn = (1 - 0.3457 - 0.3585) / 0.3585;
const x = invert(fx) * Xn, y = yr, z = invert(fz) * Zn;
return linearSrgbToColor(
3.1341359569958707 * x - 1.6173863321612538 * y - 0.4906619460083532 * z,
-0.9787955029120890 * x + 1.9162545672595240 * y + 0.0334427311613195 * z,
0.0719553798841168 * x - 0.2289768264158322 * y + 1.4053860583241250 * z,
);
}
function lchToRgb(L, C, H) {
const hRad = (H * Math.PI) / 180;
return labToRgb(L, C * Math.cos(hRad), C * Math.sin(hRad));
}
// color(<space> c1 c2 c3) for the spaces that turn up in real stylesheets.
// `srgb` is what Chrome serializes most color-mix() results into, routinely
// with channels outside 0..1. Spaces we do not model return null so callers
// abstain instead of measuring against a color we invented.
function colorFunctionToRgb(space, c1, c2, c3) {
switch (space) {
case 'srgb':
return { r: Math.round(clamp01(c1) * 255), g: Math.round(clamp01(c2) * 255), b: Math.round(clamp01(c3) * 255), a: 1 };
case 'srgb-linear':
return linearSrgbToColor(c1, c2, c3);
case 'display-p3': {
const [R, G, B] = [decodeSrgbChannel(c1), decodeSrgbChannel(c2), decodeSrgbChannel(c3)];
return linearSrgbToColor(
1.2249401762805587 * R - 0.2249404646817506 * G + 0.0000002884022551 * B,
-0.0420569547096138 * R + 1.0420571661298634 * G - 0.0000002113202247 * B,
-0.0196375587040044 * R - 0.0786360772174755 * G + 1.0982736359214800 * B,
);
}
default:
return null;
}
}
function hslToRgb(h, s, l) {
h = ((h % 360) + 360) % 360;
const c = (1 - Math.abs(2 * l - 1)) * s;
const x = c * (1 - Math.abs(((h / 60) % 2) - 1));
const m0 = l - c / 2;
const [r, g, b] =
h < 60 ? [c, x, 0] :
h < 120 ? [x, c, 0] :
h < 180 ? [0, c, x] :
h < 240 ? [0, x, c] :
h < 300 ? [x, 0, c] : [c, 0, x];
return {
r: Math.round((r + m0) * 255),
g: Math.round((g + m0) * 255),
b: Math.round((b + m0) * 255),
a: 1,
};
}
function hwbToRgb(h, w, bl) {
if (w + bl >= 1) {
const g = Math.round((w / (w + bl)) * 255);
return { r: g, g, b: g, a: 1 };
}
const base = hslToRgb(h, 1, 0.5);
const mix = (c) => Math.round(((c / 255) * (1 - w - bl) + w) * 255);
return { r: mix(base.r), g: mix(base.g), b: mix(base.b), a: 1 };
}
// Common CSS named colors — the handful that actually show up in generated
// UIs, not the full 148-name spec list. Includes the achromatic names so a
// named gray parses (and correctly reads as no-chroma) instead of being
// treated as an unknown color.
const CSS_NAMED_COLORS = {
black: { r: 0, g: 0, b: 0 },
white: { r: 255, g: 255, b: 255 },
gray: { r: 128, g: 128, b: 128 },
grey: { r: 128, g: 128, b: 128 },
silver: { r: 192, g: 192, b: 192 },
dimgray: { r: 105, g: 105, b: 105 },
darkgray: { r: 169, g: 169, b: 169 },
lightgray: { r: 211, g: 211, b: 211 },
gainsboro: { r: 220, g: 220, b: 220 },
whitesmoke: { r: 245, g: 245, b: 245 },
red: { r: 255, g: 0, b: 0 },
crimson: { r: 220, g: 20, b: 60 },
tomato: { r: 255, g: 99, b: 71 },
coral: { r: 255, g: 127, b: 80 },
salmon: { r: 250, g: 128, b: 114 },
orange: { r: 255, g: 165, b: 0 },
gold: { r: 255, g: 215, b: 0 },
yellow: { r: 255, g: 255, b: 0 },
olive: { r: 128, g: 128, b: 0 },
lime: { r: 0, g: 255, b: 0 },
green: { r: 0, g: 128, b: 0 },
teal: { r: 0, g: 128, b: 128 },
turquoise: { r: 64, g: 224, b: 208 },
cyan: { r: 0, g: 255, b: 255 },
aqua: { r: 0, g: 255, b: 255 },
skyblue: { r: 135, g: 206, b: 235 },
dodgerblue: { r: 30, g: 144, b: 255 },
blue: { r: 0, g: 0, b: 255 },
navy: { r: 0, g: 0, b: 128 },
indigo: { r: 75, g: 0, b: 130 },
rebeccapurple: { r: 102, g: 51, b: 153 },
purple: { r: 128, g: 0, b: 128 },
violet: { r: 238, g: 130, b: 238 },
orchid: { r: 218, g: 112, b: 214 },
magenta: { r: 255, g: 0, b: 255 },
fuchsia: { r: 255, g: 0, b: 255 },
hotpink: { r: 255, g: 105, b: 180 },
pink: { r: 255, g: 192, b: 203 },
maroon: { r: 128, g: 0, b: 0 },
};
// Split a string on top-level commas (ignoring commas nested in parens).
function splitTopLevelCommas(str) {
const parts = [];
let depth = 0, start = 0;
for (let i = 0; i < str.length; i++) {
const ch = str[i];
if (ch === '(') depth++;
else if (ch === ')') depth = Math.max(0, depth - 1);
else if (ch === ',' && depth === 0) {
parts.push(str.slice(start, i).trim());
start = i + 1;
}
}
const tail = str.slice(start).trim();
if (tail) parts.push(tail);
return parts;
}
// Evaluate a CSS color-mix() expression to {r,g,b,a}. Returns null when
// the expression can't be resolved (unresolved var(), unknown colors).
//
// Mixing is done with premultiplied alpha in sRGB regardless of the
// declared interpolation space. That is exact for the dominant generated-UI
// pattern — `color-mix(in oklab, <color> N%, transparent)` — where the
// result is simply <color> at alpha N% in ANY rectangular space, and a
// close-enough approximation for opaque-opaque mixes (the detector only
// consumes these values for contrast/chroma thresholds, not for display).
function parseColorMix(str) {
const m = String(str).trim().match(/^color-mix\(/i);
if (!m) return null;
// Balanced-paren capture of the arguments.
let depth = 0, end = -1;
const open = str.indexOf('(');
for (let i = open; i < str.length; i++) {
if (str[i] === '(') depth++;
else if (str[i] === ')') { depth--; if (depth === 0) { end = i; break; } }
}
if (end < 0) return null;
const args = splitTopLevelCommas(str.slice(open + 1, end));
if (args.length !== 3 || !/^in\s/i.test(args[0])) return null;
const parseComponent = (component) => {
// Percentage may lead or trail the color per spec.
let pct = null;
let colorStr = component;
const trail = component.match(/\s+([\d.]+)%$/);
const lead = component.match(/^([\d.]+)%\s+/);
if (trail) { pct = parseFloat(trail[1]); colorStr = component.slice(0, trail.index).trim(); }
else if (lead) { pct = parseFloat(lead[1]); colorStr = component.slice(lead[0].length).trim(); }
let color;
if (/^transparent$/i.test(colorStr)) color = { r: 0, g: 0, b: 0, a: 0 };
else color = parseAnyColor(colorStr);
if (!color) return null;
return { color, pct };
};
const c1 = parseComponent(args[1]);
const c2 = parseComponent(args[2]);
if (!c1 || !c2) return null;
let p1 = c1.pct, p2 = c2.pct;
if (p1 == null && p2 == null) { p1 = 50; p2 = 50; }
else if (p1 == null) p1 = 100 - p2;
else if (p2 == null) p2 = 100 - p1;
const sum = p1 + p2;
if (sum <= 0) return null;
// Per spec: weights normalize to sum; when sum < 100 the result alpha is
// additionally scaled by sum/100.
const w1 = p1 / sum, w2 = p2 / sum;
const alphaScale = sum < 100 ? sum / 100 : 1;
const a1 = c1.color.a ?? 1, a2 = c2.color.a ?? 1;
const a = (a1 * w1 + a2 * w2) * alphaScale;
if (a <= 0) return { r: 0, g: 0, b: 0, a: 0 };
const mix = (ch) => Math.round((c1.color[ch] * a1 * w1 + c2.color[ch] * a2 * w2) / (a1 * w1 + a2 * w2));
return { r: mix('r'), g: mix('g'), b: mix('b'), a: Math.min(1, a) };
}
// Composite a translucent color over an opaque(ish) base (simple
// source-over in sRGB). Returns an opaque {r,g,b,a:1}.
function compositeColorOver(top, base) {
const a = top.a ?? 1;
return {
r: Math.round(top.r * a + base.r * (1 - a)),
g: Math.round(top.g * a + base.g * (1 - a)),
b: Math.round(top.b * a + base.b * (1 - a)),
a: 1,
};
}
// A color() / lab() / lch() component: a bare number, a percentage against
// `scale`, or the `none` keyword (which resolves to zero for our purposes).
function parseColorComponent(token, scale = 1) {
if (token == null) return null;
const t = String(token).trim();
if (/^none$/i.test(t)) return 0;
const num = parseFloat(t);
if (!Number.isFinite(num)) return null;
return t.endsWith('%') ? (num / 100) * scale : num;
}
function parseAlphaToken(token) {
if (token == null) return 1;
const t = String(token).trim();
if (/^none$/i.test(t)) return 1;
const num = parseFloat(t);
if (!Number.isFinite(num)) return 1;
return t.endsWith('%') ? num / 100 : num;
}
// Extended color parser: rgb/rgba/hex/oklch/oklab/lch/lab/hsl/hwb/color()/
// color-mix/common named colors. Returns null on no match. Use this when the
// input might be any CSS color form; use plain parseRgb when you only expect
// computed rgb() values from real browsers.
function parseAnyColor(s) {
if (!s || typeof s !== 'string') return null;
const str = s.trim();
if (str === 'transparent' || str === 'currentcolor' || str === 'inherit') return null;
if (/^color-mix\(/i.test(str)) return parseColorMix(str);
let m;
m = str.match(/rgba?\(\s*(\d+(?:\.\d+)?)\s*,?\s*(\d+(?:\.\d+)?)\s*,?\s*(\d+(?:\.\d+)?)(?:\s*[,/]\s*([\d.]+)(%)?)?\s*\)/);
if (m) {
const c = { r: Math.round(+m[1]), g: Math.round(+m[2]), b: Math.round(+m[3]), a: 1 };
if (m[4] !== undefined) c.a = m[5] === '%' ? parseFloat(m[4]) / 100 : +m[4];
return c;
}
m = str.match(/^#([0-9a-f]{3,8})$/i);
if (m) {
const h = m[1];
if (h.length === 3 || h.length === 4) {
return {
r: parseInt(h[0] + h[0], 16),
g: parseInt(h[1] + h[1], 16),
b: parseInt(h[2] + h[2], 16),
a: h.length === 4 ? parseInt(h[3] + h[3], 16) / 255 : 1,
};
}
if (h.length === 6 || h.length === 8) {
return {
r: parseInt(h.slice(0, 2), 16),
g: parseInt(h.slice(2, 4), 16),
b: parseInt(h.slice(4, 6), 16),
a: h.length === 8 ? parseInt(h.slice(6, 8), 16) / 255 : 1,
};
}
}
// OKLCH parser. Tailwind v4's CSS minifier squishes the space after
// `%` ("21.5%.02 50"), so the separator between L and C may be absent.
// Match L (with optional %), then C and H separated permissively.
m = str.match(/oklch\(\s*([\d.]+)(%?)\s*[\s,]*\s*([\d.]+)\s*[\s,]+\s*([-\d.]+)(?:deg)?(?:\s*\/\s*([\d.]+)(%)?)?\s*\)/i);
if (m) {
const Lnum = parseFloat(m[1]);
const L = m[2] === '%' ? Lnum / 100 : Lnum;
const rgb = oklchToRgb(L, parseFloat(m[3]), parseFloat(m[4]));
if (m[5] !== undefined) {
const alpha = parseFloat(m[5]);
rgb.a = m[6] === '%' ? alpha / 100 : alpha;
}
return rgb;
}
// OKLAB — a/b are signed axes; percentages map 100% → 0.4.
m = str.match(/oklab\(\s*([\d.]+)(%?)\s+(-?[\d.]+)(%?)\s+(-?[\d.]+)(%?)(?:\s*\/\s*([\d.]+)(%)?)?\s*\)/i);
if (m) {
const L = m[2] === '%' ? parseFloat(m[1]) / 100 : parseFloat(m[1]);
const a = m[4] === '%' ? parseFloat(m[3]) * 0.004 : parseFloat(m[3]);
const b = m[6] === '%' ? parseFloat(m[5]) * 0.004 : parseFloat(m[5]);
const rgb = oklabToRgb(L, a, b);
if (m[7] !== undefined) {
const alpha = parseFloat(m[7]);
rgb.a = m[8] === '%' ? alpha / 100 : alpha;
}
return rgb;
}
// LCH / LAB — CIE, D50 white point. Chrome serializes lch(20% 5 60) as
// `lch(20 5 60)`, so L arrives with or without its percent sign. In both
// spaces L runs 0..100 and 100% means 100.
m = str.match(/^lch\(\s*([\d.]+%?|none)\s+([\d.]+%?|none)\s+(-?[\d.]+)(?:deg)?(?:\s*\/\s*([\d.]+%?|none))?\s*\)$/i);
if (m) {
const L = parseColorComponent(m[1], 100);
const C = parseColorComponent(m[2], 150);
const H = parseFloat(m[3]);
if (L == null || C == null || !Number.isFinite(H)) return null;
const rgb = lchToRgb(L, C, H);
rgb.a = parseAlphaToken(m[4]);
return rgb;
}
m = str.match(/^lab\(\s*([\d.]+%?|none)\s+(-?[\d.]+%?|none)\s+(-?[\d.]+%?|none)(?:\s*\/\s*([\d.]+%?|none))?\s*\)$/i);
if (m) {
const L = parseColorComponent(m[1], 100);
const a = parseColorComponent(m[2], 125);
const b = parseColorComponent(m[3], 125);
if (L == null || a == null || b == null) return null;
const rgb = labToRgb(L, a, b);
rgb.a = parseAlphaToken(m[4]);
return rgb;
}
// color(<space> c1 c2 c3 [/ alpha]) — what Chrome hands back for most
// color-mix() results and for any wide-gamut color an author wrote.
m = str.match(/^color\(\s*([a-z0-9-]+)\s+(-?[\d.eE+-]+%?|none)\s+(-?[\d.eE+-]+%?|none)\s+(-?[\d.eE+-]+%?|none)(?:\s*\/\s*([\d.]+%?|none))?\s*\)$/i);
if (m) {
const c1 = parseColorComponent(m[2]);
const c2 = parseColorComponent(m[3]);
const c3 = parseColorComponent(m[4]);
if (c1 == null || c2 == null || c3 == null) return null;
const rgb = colorFunctionToRgb(m[1].toLowerCase(), c1, c2, c3);
if (!rgb) return null;
rgb.a = parseAlphaToken(m[5]);
return rgb;
}
// HSL/HSLA — comma or space syntax, optional deg on hue.
m = str.match(/hsla?\(\s*(-?[\d.]+)(?:deg)?\s*[,\s]\s*([\d.]+)%\s*[,\s]\s*([\d.]+)%(?:\s*[,/]\s*([\d.]+)(%)?)?\s*\)/i);
if (m) {
const rgb = hslToRgb(parseFloat(m[1]), parseFloat(m[2]) / 100, parseFloat(m[3]) / 100);
if (m[4] !== undefined) {
const alpha = parseFloat(m[4]);
rgb.a = m[5] === '%' ? alpha / 100 : alpha;
}
return rgb;
}
// HWB — hue whiteness% blackness%.
m = str.match(/hwb\(\s*(-?[\d.]+)(?:deg)?\s+([\d.]+)%\s+([\d.]+)%(?:\s*\/\s*([\d.]+)(%)?)?\s*\)/i);
if (m) {
const rgb = hwbToRgb(parseFloat(m[1]), parseFloat(m[2]) / 100, parseFloat(m[3]) / 100);
if (m[4] !== undefined) {
const alpha = parseFloat(m[4]);
rgb.a = m[5] === '%' ? alpha / 100 : alpha;
}
return rgb;
}
const named = CSS_NAMED_COLORS[str.toLowerCase()];
if (named) return { ...named, a: 1 };
return null;
}
// True when a computed background-color string names no paint at all. Used to
// tell "this layer is see-through" (walk on to the ancestor) apart from "this
// layer has a color we could not read" (stop and abstain).
//
// `inherit` belongs here even though it is not literally see-through: it means
// "paint with the parent's background-color", and walking on to the parent IS
// that resolution. Real browsers resolve the keyword before getComputedStyle
// output; only jsdom's partial cascade hands it through verbatim, and treating
// it as unreadable would make the walk abstain on a surface it can know.
// (`currentcolor` is NOT here — it is real paint in the element's own text
// color; resolveBackgroundInfo substitutes the computed color for it.)
function isNoPaintColorValue(value) {
const v = String(value || '').trim().toLowerCase();
if (!v) return true;
return v === 'transparent' || v === 'none' || v === 'initial' || v === 'inherit' || v === 'unset' || v === 'revert' || v === 'revert-layer';
}
export {
isNeutralColor,
parseRgb,
relativeLuminance,
contrastRatio,
parseGradientColors,
extractColorFunctionTokens,
hasChroma,
getHue,
colorToHex,
oklabToRgb,
oklchToRgb,
labToRgb,
lchToRgb,
colorFunctionToRgb,
hslToRgb,
hwbToRgb,
CSS_NAMED_COLORS,
splitTopLevelCommas,
parseColorMix,
parseAnyColor,
compositeColorOver,
isNoPaintColorValue,
};
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// ─── Section 1: Constants ───────────────────────────────────────────────────
const SAFE_TAGS = new Set([
'blockquote', 'nav', 'a', 'input', 'textarea', 'select',
'pre', 'code', 'span', 'th', 'td', 'tr', 'li', 'label',
'button', 'hr', 'html', 'head', 'body', 'script', 'style',
'link', 'meta', 'title', 'br', 'img', 'svg', 'path', 'circle',
'rect', 'line', 'polyline', 'polygon', 'g', 'defs', 'use',
]);
// Per-check safe-tags override for the border (side-tab / border-accent)
// rule. We intentionally re-allow <label> here because card-shaped clickable
// labels (e.g. .checklist-item wrapping a checkbox + content) are one of the
// canonical side-tab anti-pattern shapes and must be detected. The rule's
// other preconditions (non-neutral color, width >= 2px on a single side,
// radius > 0 or width >= 3, element size >= 20x20 in the browser path)
// already filter out plain inline form labels so this does not introduce
// false positives. See modern-color-borders.html for the test matrix.
const BORDER_SAFE_TAGS = new Set(
[...SAFE_TAGS].filter(t => t !== 'label')
);
const OVERUSED_FONTS = new Set([
// Older monoculture (still ubiquitous):
'inter', 'roboto', 'open sans', 'lato', 'montserrat', 'arial', 'helvetica',
// Newer monoculture (the Anthropic-skill / Vercel / GitHub default wave):
'fraunces', 'instrument sans', 'instrument serif',
'geist', 'geist sans', 'geist mono',
'mona sans',
'plus jakarta sans', 'space grotesk', 'recoleta',
]);
// Brand-associated fonts: don't flag these as "overused" on the brand's own domains.
// Keys are font names, values are arrays of hostname suffixes where the font is allowed.
const GOOGLE_DOMAINS = [
'google.com', 'youtube.com', 'android.com', 'chromium.org',
'chrome.com', 'web.dev', 'gstatic.com', 'firebase.google.com',
];
const VERCEL_DOMAINS = ['vercel.com', 'nextjs.org', 'v0.app'];
const GITHUB_DOMAINS = ['github.com', 'githubnext.com'];
const BRAND_FONT_DOMAINS = {
'roboto': GOOGLE_DOMAINS,
'google sans': GOOGLE_DOMAINS,
'product sans': GOOGLE_DOMAINS,
'geist': VERCEL_DOMAINS,
'geist sans': VERCEL_DOMAINS,
'geist mono': VERCEL_DOMAINS,
'mona sans': GITHUB_DOMAINS,
};
function isBrandFontOnOwnDomain(font) {
if (typeof location === 'undefined') return false;
const allowed = BRAND_FONT_DOMAINS[font];
if (!allowed) return false;
const host = location.hostname.toLowerCase();
return allowed.some(suffix => host === suffix || host.endsWith('.' + suffix));
}
// Overused-font primary selection skips only CSS generics so a system stack
// keeps the system face as primary; GENERIC_FONTS still includes platform
// faces for design-system/serif resolution.
const CSS_GENERIC_FONTS = new Set([
'serif', 'sans-serif', 'monospace', 'cursive', 'fantasy',
'inherit', 'initial', 'unset', 'revert',
]);
const GENERIC_FONTS = new Set([
...CSS_GENERIC_FONTS,
'system-ui', 'ui-serif', 'ui-sans-serif', 'ui-monospace', 'ui-rounded',
'-apple-system', 'blinkmacsystemfont', 'segoe ui',
]);
function primaryFontFace(fontFamily, skip = CSS_GENERIC_FONTS) {
return String(fontFamily || '')
.split(',')
.map(f => f.trim().replace(/^['"]|['"]$/g, '').toLowerCase())
.find(f => f && !skip.has(f)) || null;
}
// WCAG large text thresholds are defined in points: 18pt normal text and
// 14pt bold text. Browsers expose font-size in CSS pixels at 96px per inch.
const WCAG_LARGE_TEXT_PX = 18 * (96 / 72);
const WCAG_LARGE_BOLD_TEXT_PX = 14 * (96 / 72);
// Em-dash overuse (advisory) thresholds, shared by the regex/static-HTML
// analyzer and the browser DOM check so both fire on the same saturation
// pattern. Two gates must hold: an absolute floor of EM_DASH_FLOOR dashes, and
// a density of at least one dash per EM_DASH_CHARS_PER_DASH characters of body
// text. A long article that uses a few em-dashes is left alone; a short,
// dash-per-clause page is not.
const EM_DASH_FLOOR = 8;
const EM_DASH_CHARS_PER_DASH = 500;
// Serif faces that show up in italic-display heroes. The rule also fires when
// the primary face is unknown but the stack ends in the generic `serif` token,
// which catches custom/private faces with a serif fallback.
const KNOWN_SERIF_FONTS = new Set([
'fraunces', 'recoleta', 'newsreader', 'playfair display', 'playfair',
'cormorant', 'cormorant garamond', 'garamond', 'eb garamond',
'tiempos', 'tiempos headline', 'tiempos text',
'lora', 'vollkorn', 'spectral',
'source serif pro', 'source serif 4', 'source serif',
'ibm plex serif', 'merriweather',
'libre caslon', 'libre baskerville', 'baskerville',
'georgia', 'times new roman', 'times',
'dm serif display', 'dm serif text',
'instrument serif', 'gt sectra', 'ogg', 'canela',
'freight display', 'freight text',
]);
export {
SAFE_TAGS,
BORDER_SAFE_TAGS,
OVERUSED_FONTS,
GOOGLE_DOMAINS,
VERCEL_DOMAINS,
GITHUB_DOMAINS,
BRAND_FONT_DOMAINS,
isBrandFontOnOwnDomain,
GENERIC_FONTS,
primaryFontFace,
WCAG_LARGE_TEXT_PX,
WCAG_LARGE_BOLD_TEXT_PX,
EM_DASH_FLOOR,
EM_DASH_CHARS_PER_DASH,
KNOWN_SERIF_FONTS,
};
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const GOOGLE_FONTS_URL_RE = /fonts\.googleapis\.com\/css2?\?[^"'\s)<>]*/gi;
function normalizeGoogleFontFamilyParam(value) {
return String(value || '')
.split('|')
.map(part => part.split(':')[0].trim().toLowerCase())
.filter(Boolean);
}
function extractGoogleFontFamilies(text) {
const families = [];
if (!text) return families;
GOOGLE_FONTS_URL_RE.lastIndex = 0;
let urlMatch;
while ((urlMatch = GOOGLE_FONTS_URL_RE.exec(text)) !== null) {
const url = urlMatch[0];
const queryStart = url.indexOf('?');
if (queryStart === -1) continue;
const params = new URLSearchParams(url.slice(queryStart + 1).replace(/&amp;/g, '&'));
for (const value of params.getAll('family')) {
families.push(...normalizeGoogleFontFamilyParam(value));
}
}
return families;
}
export { extractGoogleFontFamilies };
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/**
* Inline, in-file ignore directives — eslint-disable-style waivers that live at
* the point they apply and travel with the artifact instead of (or alongside)
* an ignore in `.impeccable/config.json`.
*
* A config ignore is the right default for repo-wide policy. This complements it
* for the one case config can't cover: a waiver that belongs to a single file and
* needs to follow that file when it leaves the repo — a generated/exported
* standalone document, an emailed HTML file, a snippet scanned out of context.
*
* Comment-syntax-agnostic: the directive is a raw token matched anywhere on a
* line, so the same marker works across every comment style impeccable scans —
* `//`, `/* *\/`, `<!-- -->`, `#`, `{/* *\/}`, `{# #}`. Trailing comment closers
* are stripped before the rule list is parsed.
*
* Syntax (reason optional; eslint `--` or biome `:` separator):
*
* impeccable-disable <rule>[, <rule>...] [-- reason] whole file
* impeccable-disable-line <rule>... [-- reason] the same line
* impeccable-disable-next-line <rule>... [-- reason] the following line
* impeccable-disable bare / `*` = every rule
*
* Examples:
*
* <!-- impeccable-disable overused-font -- exported brand doc, font is first-party -->
* .brand { font-family: Inter; } /* impeccable-disable-line overused-font *\/
* // impeccable-disable-next-line bounce-easing: intentional playful affordance
*
* Behavior is suppression, for parity with config ignores: a matched directive
* drops the finding. The inline reason is self-documenting in the diff; it is not
* required and is discarded at scan time (only used here to keep reason words out
* of the parsed rule list).
*/
const DIRECTIVE_RE = /impeccable-(disable-next-line|disable-line|disable)\b[ \t]*([^\n\r]*)/gi;
// Trailing comment closers, so `*/`, `*/}`, `-->`, `*}`, `#}`, `%>`, `}}` don't
// leak into the rule list. Anchored to end-of-line; the leading `\s*` mops up the
// space before the closer. `--+>` covers `-->` and any longer dash run.
const TRAILING_CLOSER_RE = /\s*(?:\*\/\}?|--+>|\*\}|#\}|%>|\}\})\s*$/;
function normalizeRule(token) {
return String(token || '').trim().toLowerCase();
}
// Split the directive remainder into rule tokens, dropping any human reason that
// follows an eslint-style `--` or biome-style `:` separator. Rule ids only ever
// contain single hyphens (`overused-font`, `bounce-easing`), so `--` and `:`
// are unambiguous separators.
function parseRuleList(remainder) {
let text = String(remainder || '').replace(TRAILING_CLOSER_RE, '').trim();
// Cut off a human reason at the first `--` (eslint) or `:` (biome) separator.
const reasonSep = text.match(/\s*(?:--+|:)\s*/);
if (reasonSep) text = text.slice(0, reasonSep.index);
const tokens = text.split(/[\s,]+/).map(normalizeRule).filter(Boolean);
if (tokens.length === 0 || tokens.includes('*')) return ['*'];
return tokens;
}
function addRules(set, rules) {
for (const rule of rules) set.add(rule);
}
function getSet(map, key) {
let set = map.get(key);
if (!set) {
set = new Set();
map.set(key, set);
}
return set;
}
/**
* Parse every inline ignore directive in a file's raw text.
*
* Returns sets keyed by the 1-based line the directive *targets* so matching is a
* direct lookup:
* - file: rules disabled for the whole file
* - line: line -> rules disabled on that exact line (disable-line)
* - nextLine: line -> rules disabled on that line (disable-next-line on line-1)
*
* `*` in any set means "every rule".
*/
function parseInlineIgnores(content) {
const result = { file: new Set(), line: new Map(), nextLine: new Map() };
const text = typeof content === 'string' ? content : '';
// Cheap bail-out: the substring must be present for any directive to exist.
// Case-insensitive to match DIRECTIVE_RE's `i` flag (e.g. `Impeccable-Disable`).
if (!/impeccable-disable/i.test(text)) return result;
// Split on `\n` only, exactly as detectText numbers lines, so directive line
// keys line up with finding `line` values (incl. on `\r`-only line endings).
// The directive regex excludes `\r`, so a trailing `\r` on `\r\n` files is
// never captured into the rule list.
const lines = text.split('\n');
for (let i = 0; i < lines.length; i++) {
DIRECTIVE_RE.lastIndex = 0;
let m;
while ((m = DIRECTIVE_RE.exec(lines[i])) !== null) {
const variant = m[1].toLowerCase();
const rules = parseRuleList(m[2]);
if (variant === 'disable') {
addRules(result.file, rules);
} else if (variant === 'disable-line') {
addRules(getSet(result.line, i + 1), rules);
} else {
// disable-next-line on line i+1 targets line i+2.
addRules(getSet(result.nextLine, i + 2), rules);
}
}
}
return result;
}
function setMatches(set, rule) {
return Boolean(set) && (set.has('*') || set.has(rule));
}
function isInlineIgnored(finding, directives) {
const rule = normalizeRule(finding && finding.antipattern);
if (!rule) return false;
if (setMatches(directives.file, rule)) return true;
const line = Number(finding && finding.line) || 0;
if (line > 0) {
if (setMatches(directives.line.get(line), rule)) return true;
if (setMatches(directives.nextLine.get(line), rule)) return true;
}
return false;
}
function hasDirectives(directives) {
return directives.file.size > 0 || directives.line.size > 0 || directives.nextLine.size > 0;
}
/**
* Drop findings waived by an inline directive in the same file's source text.
* Findings without a usable line number (e.g. static-HTML page-level findings)
* are only matched by whole-file directives — which is the standalone-document
* case this primitive exists for.
*/
function applyInlineIgnores(findings, content) {
if (!Array.isArray(findings) || findings.length === 0) return findings;
const directives = parseInlineIgnores(content);
if (!hasDirectives(directives)) return findings;
return findings.filter((finding) => !isInlineIgnored(finding, directives));
}
export { parseInlineIgnores, applyInlineIgnores, isInlineIgnored };
-7
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@@ -1,7 +0,0 @@
/** Check if content looks like a full page (not a component/partial) */
function isFullPage(content) {
const stripped = content.replace(/<!--[\s\S]*?-->/g, '');
return /<!doctype\s|<html[\s>]|<head[\s>]/i.test(stripped);
}
export { isFullPage };
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@@ -1,35 +0,0 @@
// Nothing in this repo imports this module. Its consumers are the Cloudflare
// Pages Functions in the private impeccable-site repo (functions/api/download/
// bundle/[provider].js and [type]/[provider]/[id].js), which share cli/lib/.
// Do not remove it as dead code; keep the provider list in sync with the
// harness dirs the build emits.
export const FILE_DOWNLOAD_PROVIDER_CONFIG_DIRS = Object.freeze({
cursor: '.cursor',
'claude-code': '.claude',
gemini: '.gemini',
codex: '.codex',
agents: '.agents',
antigravity: '.agent',
github: '.github',
grok: '.grok',
hermes: '.hermes',
kiro: '.kiro',
opencode: '.opencode',
pi: '.pi',
qoder: '.qoder',
vibe: '.vibe',
veto: '.veto',
});
export const FILE_DOWNLOAD_PROVIDERS = Object.freeze(
Object.keys(FILE_DOWNLOAD_PROVIDER_CONFIG_DIRS)
);
export const BUNDLE_DOWNLOAD_PROVIDERS = Object.freeze([
'universal',
]);
export const DOWNLOAD_PROVIDERS = Object.freeze([
...FILE_DOWNLOAD_PROVIDERS,
...BUNDLE_DOWNLOAD_PROVIDERS,
]);
-640
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@@ -1,640 +0,0 @@
/**
* CLI-side reader/writer for the unified `.impeccable` config.
*
* The CLI (published to npm) and the skill scripts (bundled into the install)
* live in separate trees and cannot share runtime code, so this duplicates a
* small slice of skill/scripts/hook-lib.mjs — the config-path layout, detector
* ignore semantics, and the `.git/info/exclude` handling. Keep the schema,
* ignore filtering, and exclude marker in sync if either side changes.
*
* Schema (config.json shared / config.local.json gitignored, per-developer):
* {
* "detector": { "ignoreRules": [], "ignoreFiles": [], "ignoreValues": [], "designSystem": { "enabled": true } },
* "hook": { "consent": "accepted" | "declined", ... },
* "updateCheck": bool
* }
*/
import { existsSync, readFileSync, writeFileSync, mkdirSync, statSync } from 'node:fs';
import { join, dirname, isAbsolute, relative, resolve, sep } from 'node:path';
export function getConfigPath(root) {
return join(root, '.impeccable', 'config.json');
}
export function getLocalConfigPath(root) {
return join(root, '.impeccable', 'config.local.json');
}
function safeReadJson(filePath) {
try {
const raw = JSON.parse(readFileSync(filePath, 'utf-8'));
return raw && typeof raw === 'object' && !Array.isArray(raw) ? raw : null;
} catch {
return null;
}
}
function hookSection(raw) {
return raw && raw.hook && typeof raw.hook === 'object' && !Array.isArray(raw.hook) ? raw.hook : null;
}
function detectorSection(raw) {
return raw && raw.detector && typeof raw.detector === 'object' && !Array.isArray(raw.detector) ? raw.detector : null;
}
const DETECTOR_CONFIG_KEYS = new Set(['ignoreRules', 'ignoreFiles', 'ignoreValues', 'designSystem', 'advisoryRules']);
const DEFAULT_DETECTION_CONFIG = Object.freeze({
ignoreRules: [],
ignoreFiles: [],
ignoreValues: [],
designSystem: { enabled: true },
});
function cloneDetectionConfig() {
return {
ignoreRules: [],
ignoreFiles: [],
ignoreValues: [],
designSystem: { ...DEFAULT_DETECTION_CONFIG.designSystem },
};
}
function cloneRawDetectionConfig() {
return {
ignoreRules: [],
ignoreFiles: [],
ignoreValues: [],
};
}
function applyDetectionConfigSource(config, raw) {
if (!raw || typeof raw !== 'object') return config;
// Advisory rules are opt-in for the design hook; the CLI carries the setting
// so config round-trips (e.g. `impeccable hooks ignore-value`) preserve it.
if (raw.advisoryRules === 'include' || raw.advisoryRules === 'exclude') {
config.advisoryRules = raw.advisoryRules;
}
if (raw.designSystem && typeof raw.designSystem === 'object' && !Array.isArray(raw.designSystem)) {
config.designSystem = {
...config.designSystem,
enabled: raw.designSystem.enabled === false ? false : true,
};
}
if (Array.isArray(raw.ignoreRules)) {
config.ignoreRules = uniqueStrings([...config.ignoreRules, ...raw.ignoreRules]);
}
if (Array.isArray(raw.ignoreFiles)) {
config.ignoreFiles = uniqueStrings([...config.ignoreFiles, ...raw.ignoreFiles]);
}
if (Array.isArray(raw.ignoreValues)) {
config.ignoreValues = mergeIgnoreValues(config.ignoreValues, raw.ignoreValues);
}
return config;
}
function uniqueStrings(values) {
return Array.from(new Set(values.map(String)));
}
/**
* Detector filters shared by `npx impeccable detect` and the design hook.
* `hook.enabled` remains hook lifecycle state; manual CLI scans still run when
* the hook is disabled, but they honor the same ignore rules and design-system
* toggle.
*/
export function readDetectionConfig(root) {
const config = cloneDetectionConfig();
for (const filePath of [getConfigPath(root), getLocalConfigPath(root)]) {
const raw = safeReadJson(filePath);
// Back-compat: old builds stored detector filters under hook.*.
applyDetectionConfigSource(config, hookSection(raw));
applyDetectionConfigSource(config, detectorSection(raw));
}
return config;
}
export function readRawDetectionConfig(root, opts = {}) {
const raw = safeReadJson(opts.local ? getLocalConfigPath(root) : getConfigPath(root));
const config = cloneRawDetectionConfig();
applyDetectionConfigSource(config, hookSection(raw));
applyDetectionConfigSource(config, detectorSection(raw));
return config;
}
export function writeDetectionConfig(root, detectorConfig, opts = {}) {
const filePath = opts.local ? getLocalConfigPath(root) : getConfigPath(root);
if (opts.local) ensureConfigGitExclude(root);
const existing = safeReadJson(filePath) || {};
const existingHook = hookSection(existing);
const nextHook = stripDetectorKeys(existingHook);
const nextDetector = {
...(detectorSection(existing) || {}),
...normalizeDetectionConfigForWrite(detectorConfig),
};
const next = {
...existing,
detector: nextDetector,
};
if (nextHook && Object.keys(nextHook).length > 0) {
next.hook = nextHook;
} else {
delete next.hook;
}
mkdirSync(dirname(filePath), { recursive: true });
writeFileSync(filePath, `${JSON.stringify(next, null, 2)}\n`);
return filePath;
}
function normalizeDetectionConfigForWrite(config) {
const out = {};
if (Array.isArray(config?.ignoreRules)) {
out.ignoreRules = uniqueStrings(config.ignoreRules.map((rule) => normalizeIgnoreRule(rule)).filter(Boolean));
}
if (Array.isArray(config?.ignoreFiles)) {
out.ignoreFiles = uniqueStrings(config.ignoreFiles.filter(v => typeof v === 'string' && v.trim()).map(v => v.trim()));
}
out.ignoreValues = normalizeIgnoreValueEntries(config?.ignoreValues || []);
if (config?.advisoryRules === 'include' || config?.advisoryRules === 'exclude') {
out.advisoryRules = config.advisoryRules;
}
if (config?.designSystem && typeof config.designSystem === 'object' && !Array.isArray(config.designSystem)) {
out.designSystem = {
enabled: config.designSystem.enabled === false ? false : true,
};
}
return out;
}
function stripDetectorKeys(raw) {
if (!raw || typeof raw !== 'object' || Array.isArray(raw)) return null;
const out = {};
for (const [key, value] of Object.entries(raw)) {
if (!DETECTOR_CONFIG_KEYS.has(key)) out[key] = value;
}
return out;
}
export function normalizeIgnoreValue(value) {
return String(value || '')
.trim()
.replace(/^["']|["']$/g, '')
.replace(/\+/g, ' ')
.replace(/\s+/g, ' ')
.toLowerCase();
}
function normalizeIgnoreRule(rule) {
return String(rule || '').trim().toLowerCase();
}
function colorIgnoreKey(value) {
const color = parseIgnoreColor(value);
if (!color) return '';
return `${color.r},${color.g},${color.b},${Math.round(color.a * 255)}`;
}
function parseIgnoreColor(value) {
const text = String(value || '').trim().toLowerCase();
if (!text) return null;
const hex = text.match(/^#([0-9a-f]{3,4}|[0-9a-f]{6}|[0-9a-f]{8})$/i);
if (hex) return parseHexIgnoreColor(hex[1]);
const rgb = text.match(/^rgba?\((.*)\)$/i);
if (rgb) {
const parts = splitColorArgs(rgb[1]);
if (parts.length < 3 || parts.length > 4) return null;
const r = parseColorChannel(parts[0], COLOR_CHANNEL_FORMATS.rgb);
const g = parseColorChannel(parts[1], COLOR_CHANNEL_FORMATS.rgb);
const b = parseColorChannel(parts[2], COLOR_CHANNEL_FORMATS.rgb);
const a = parts[3] === undefined ? 1 : parseColorChannel(parts[3], COLOR_CHANNEL_FORMATS.alpha);
if ([r, g, b, a].some((v) => v === null)) return null;
return { r, g, b, a };
}
const hsl = text.match(/^hsla?\((.*)\)$/i);
if (hsl) {
const parts = splitColorArgs(hsl[1]);
if (parts.length < 3 || parts.length > 4) return null;
const h = parseColorChannel(parts[0], COLOR_CHANNEL_FORMATS.hue);
const s = parseColorChannel(parts[1], COLOR_CHANNEL_FORMATS.percent);
const l = parseColorChannel(parts[2], COLOR_CHANNEL_FORMATS.percent);
const a = parts[3] === undefined ? 1 : parseColorChannel(parts[3], COLOR_CHANNEL_FORMATS.alpha);
if ([h, s, l, a].some((v) => v === null)) return null;
return hslToRgb(h, s, l, a);
}
return null;
}
function parseHexIgnoreColor(hex) {
const expanded = hex.length <= 4
? [...hex].map((digit) => digit.repeat(2)).join('')
: hex;
const [r, g, b, alpha = 255] = expanded
.match(/../g)
.map((channel) => Number.parseInt(channel, 16));
return { r, g, b, a: alpha / 255 };
}
function splitColorArgs(body) {
const text = String(body || '').trim();
if (!text) return [];
if (text.includes(',')) {
const parts = text.split(',').map((part) => part.trim()).filter(Boolean);
const last = parts[parts.length - 1];
if (last && last.includes('/')) {
const split = last.split('/').map((part) => part.trim()).filter(Boolean);
return [...parts.slice(0, -1), ...split];
}
return parts;
}
return text.replace(/\s*\/\s*/g, ' / ').split(/\s+/).filter((part) => part && part !== '/');
}
const CSS_NUMBER_RE = /^(-?\d*\.?\d+)(%|deg|rad|turn|grad)?$/;
const identity = (value) => value;
const COLOR_CHANNEL_FORMATS = {
rgb: { units: { '': identity, '%': (value) => value * 2.55 }, min: 0, max: 255, round: true },
alpha: { units: { '': identity, '%': (value) => value / 100 }, min: 0, max: 1 },
hue: {
units: {
'': identity,
deg: identity,
rad: (value) => value * (180 / Math.PI),
turn: (value) => value * 360,
grad: (value) => value * 0.9,
},
},
percent: { units: { '%': (value) => value / 100 }, min: 0, max: 1 },
};
function parseColorChannel(raw, { units, min = -Infinity, max = Infinity, round = false }) {
const text = String(raw || '').trim();
const match = text.match(CSS_NUMBER_RE);
if (!match) return null;
const convert = units[match[2] || ''];
if (!convert) return null;
const number = Number.parseFloat(match[1]);
if (!Number.isFinite(number)) return null;
const value = convert(number);
if (value < min || value > max) return null;
return round ? Math.round(value) : value;
}
function hslToRgb(hue, saturation, lightness, alpha) {
const h = (((hue % 360) + 360) % 360) / 360;
if (saturation === 0) {
const gray = clampByte(Math.round(lightness * 255));
return { r: gray, g: gray, b: gray, a: alpha };
}
const q = lightness < 0.5
? lightness * (1 + saturation)
: lightness + saturation - lightness * saturation;
const p = 2 * lightness - q;
const toRgb = (t) => {
let channel = t;
if (channel < 0) channel += 1;
if (channel > 1) channel -= 1;
if (channel < 1 / 6) return p + (q - p) * 6 * channel;
if (channel < 1 / 2) return q;
if (channel < 2 / 3) return p + (q - p) * (2 / 3 - channel) * 6;
return p;
};
return {
r: clampByte(Math.round(toRgb(h + 1 / 3) * 255)),
g: clampByte(Math.round(toRgb(h) * 255)),
b: clampByte(Math.round(toRgb(h - 1 / 3) * 255)),
a: alpha,
};
}
function clampByte(value) {
return Math.min(255, Math.max(0, value));
}
function ignoreValueMatches(rule, entryValue, findingValue) {
if (entryValue === findingValue) return true;
if (rule !== 'design-system-color') return false;
const entryColor = colorIgnoreKey(entryValue);
return Boolean(entryColor && entryColor === colorIgnoreKey(findingValue));
}
export function normalizeIgnoreValueEntries(entries) {
if (!Array.isArray(entries)) return [];
const out = [];
for (const entry of entries) {
if (!entry || typeof entry !== 'object') continue;
const rule = normalizeIgnoreRule(entry.rule);
const value = normalizeIgnoreValue(entry.value);
if (!rule || !value) continue;
const normalized = { rule, value };
const files = uniqueStrings([
...(typeof entry.file === 'string' && entry.file.trim() ? [entry.file.trim()] : []),
...(Array.isArray(entry.files) ? entry.files.filter(v => typeof v === 'string' && v.trim()).map(v => v.trim()) : []),
]);
if (files.length > 0) normalized.files = files;
// Key order is rule, value, files, createdAt, reason and must stay that way:
// normalizing runs on every write, so emitting a different order than the one
// already on disk rewrites every untouched entry and churns the diff. Keep in
// step with normalizeIgnoreValueEntries in skill/scripts/hook-lib.mjs.
if (typeof entry.createdAt === 'string' && entry.createdAt.trim()) {
normalized.createdAt = entry.createdAt.trim();
}
if (typeof entry.reason === 'string' && entry.reason.trim()) {
normalized.reason = entry.reason.trim();
}
out.push(normalized);
}
return out;
}
function mergeIgnoreValues(existing, incoming) {
const map = new Map();
for (const entry of normalizeIgnoreValueEntries(existing)) {
map.set(`${entry.rule}\0${entry.value}\0${ignoreValueFilesKey(entry.files)}`, entry);
}
for (const entry of normalizeIgnoreValueEntries(incoming)) {
map.set(`${entry.rule}\0${entry.value}\0${ignoreValueFilesKey(entry.files)}`, entry);
}
return Array.from(map.values());
}
function ignoreValueFilesKey(files) {
// Sort before joining: a scope is a set, so an entry already on disk in another
// order must compare equal rather than dedup as two distinct entries.
return Array.isArray(files) && files.length > 0 ? [...files].sort().join('\x1f') : '';
}
// Glob -> RegExp. Supports `**`, `*`, `?`, and `{a,b}` alternation.
function globToRegex(glob) {
let re = '^';
let i = 0;
while (i < glob.length) {
const c = glob[i];
if (c === '*') {
if (glob[i + 1] === '*') {
re += '.*';
i += 2;
if (glob[i] === '/') i += 1;
} else {
re += '[^/]*';
i += 1;
}
} else if (c === '?') {
re += '[^/]';
i += 1;
} else if (c === '{') {
const end = glob.indexOf('}', i);
if (end === -1) { re += '\\{'; i += 1; continue; }
const parts = glob.slice(i + 1, end).split(',').map((p) => p.replace(/[.+^$()|[\]\\]/g, '\\$&'));
re += `(?:${parts.join('|')})`;
i = end + 1;
} else if (/[.+^$()|[\]\\]/.test(c)) {
re += `\\${c}`;
i += 1;
} else {
re += c;
i += 1;
}
}
re += '$';
return new RegExp(re);
}
export function matchesAnyGlob(filePath, globs) {
if (!Array.isArray(globs) || globs.length === 0) return false;
const normalized = String(filePath || '').split(sep).join('/');
for (const glob of globs) {
try {
const re = globToRegex(String(glob));
if (re.test(normalized)) return true;
const base = normalized.split('/').pop();
if (re.test(base)) return true;
} catch {
/* malformed glob, skip */
}
}
return false;
}
export function shouldIgnoreDetectionFile(filePath, root, config) {
const globs = config?.ignoreFiles || [];
if (!Array.isArray(globs) || globs.length === 0) return false;
const raw = String(filePath || '').trim();
if (!raw) return false;
if (matchesAnyGlob(raw, globs)) return true;
try {
const abs = isAbsolute(raw) ? raw : resolve(root, raw);
if (matchesAnyGlob(abs, globs)) return true;
const rel = relative(root, abs);
if (rel && !rel.startsWith('..') && !isAbsolute(rel)) {
return matchesAnyGlob(rel, globs);
}
} catch {
/* ignore */
}
return false;
}
export function filterDetectionFindings(findings, config) {
if (!Array.isArray(findings) || findings.length === 0) return [];
const ignoreRules = new Set((config?.ignoreRules || []).map((rule) => normalizeIgnoreRule(rule)));
const ignoreValues = normalizeIgnoreValueEntries(config?.ignoreValues || []);
return findings.filter((finding) => {
if (!finding || typeof finding !== 'object') return false;
if (ignoreRules.has(normalizeIgnoreRule(finding.antipattern))) return false;
if (isIgnoredFindingValue(finding, ignoreValues)) return false;
return true;
});
}
function isIgnoredFindingValue(finding, ignoreValues) {
if (!Array.isArray(ignoreValues) || ignoreValues.length === 0) return false;
const rule = normalizeIgnoreRule(finding.antipattern);
if (!rule) return false;
// File-scoped wildcards suppress rules with no extractable value, such as side-tab.
const value = extractFindingIgnoreValue(finding);
return ignoreValues.some((entry) => {
if (entry.rule !== rule) return false;
const wildcardValue = entry.value === '*';
if (!wildcardValue && (!value || !ignoreValueMatches(rule, entry.value, value))) return false;
if (!Array.isArray(entry.files) || entry.files.length === 0) return !wildcardValue;
return findingMatchesScopedIgnoreFile(finding, entry.files);
});
}
function findingMatchesScopedIgnoreFile(finding, globs) {
const filePath = String(finding?.file || '').trim();
if (!filePath) return false;
if (matchesAnyGlob(filePath, globs)) return true;
const normalized = filePath.split(sep).join('/');
const parts = normalized.split('/').filter(Boolean);
for (let i = 0; i < parts.length; i++) {
const suffix = parts.slice(i).join('/');
if (matchesAnyGlob(suffix, globs)) return true;
}
return false;
}
export function extractFindingIgnoreValue(finding) {
if (!finding || typeof finding !== 'object') return '';
const rule = normalizeIgnoreRule(finding.antipattern);
const directValueRules = new Set([
'overused-font',
'bounce-easing',
'design-system-font',
'design-system-color',
'design-system-radius',
'design-system-font-size',
]);
if (!directValueRules.has(rule)) return '';
return normalizeIgnoreValue(extractFindingIgnoreValueRaw(finding, rule));
}
function extractFindingIgnoreValueRaw(finding, rule = normalizeIgnoreRule(finding?.antipattern)) {
const direct = cleanIgnoreValueDisplay(finding.ignoreValue || finding.value || '');
if (direct) return direct;
const candidates = [finding.detail, finding.snippet].filter((v) => typeof v === 'string' && v);
for (const text of candidates) {
if (rule === 'bounce-easing') {
const motion = extractMotionIgnoreValue(text);
if (motion) return motion;
continue;
}
const primary = text.match(/Primary font:\s*([^()\n;]+)/i);
if (primary) return cleanIgnoreValueDisplay(primary[1]);
const googleLabel = text.match(/Google Fonts:\s*([^()\n;]+)/i);
if (googleLabel) return cleanIgnoreValueDisplay(googleLabel[1]);
const family = text.match(/font-family\s*:\s*["']?([^'",;\n]+)/i);
if (family) return cleanIgnoreValueDisplay(family[1]);
const google = text.match(/[?&]family=([^&:;\n]+)/i);
if (google) {
try {
return cleanIgnoreValueDisplay(decodeURIComponent(google[1]));
} catch {
return cleanIgnoreValueDisplay(google[1]);
}
}
}
return '';
}
function extractMotionIgnoreValue(text) {
const tailwind = text.match(/\banimate-bounce\b/i);
if (tailwind) return cleanIgnoreValueDisplay(tailwind[0]);
const bezier = text.match(/cubic-bezier\([^)]+\)/i);
if (bezier) return cleanIgnoreValueDisplay(bezier[0]);
const animation = text.match(/animation(?:-name)?\s*:\s*([^;\n]+)/i);
if (animation) {
const token = animation[1]
.split(/[,\s]+/)
.find((part) => /bounce|elastic|wobble|jiggle|spring/i.test(part));
if (token) return cleanIgnoreValueDisplay(token);
}
return '';
}
function cleanIgnoreValueDisplay(value) {
return String(value || '')
.trim()
.replace(/^["']|["']$/g, '')
.replace(/\+/g, ' ')
.replace(/\s+/g, ' ');
}
/**
* The recorded design-hook decision: 'accepted' | 'declined' | undefined.
* config.local.json (per-developer) overrides config.json.
*/
export function getHookConsent(root) {
let consent;
for (const filePath of [getConfigPath(root), getLocalConfigPath(root)]) {
const hook = hookSection(safeReadJson(filePath));
if (hook && (hook.consent === 'accepted' || hook.consent === 'declined')) consent = hook.consent;
}
return consent;
}
/**
* Persist the per-developer decision to config.local.json, preserving any
* sibling keys, and ensure the file is gitignored.
*/
export function setHookConsent(root, value) {
const filePath = getLocalConfigPath(root);
const existing = safeReadJson(filePath) || {};
const hook = hookSection(existing) || {};
const next = { ...existing, hook: { ...hook, consent: value } };
mkdirSync(dirname(filePath), { recursive: true });
writeFileSync(filePath, `${JSON.stringify(next, null, 2)}\n`);
ensureConfigGitExclude(root);
return filePath;
}
const EXCLUDE_OPEN = '# impeccable-config-ignore-start';
const EXCLUDE_CLOSE = '# impeccable-config-ignore-end';
const EXCLUDE_PATTERNS = ['.impeccable/config.local.json'];
/**
* Add config.local.json to `.git/info/exclude` so a developer's decision is
* never committed. Idempotent via marker comments. Best-effort; returns false
* when there is no resolvable git dir.
*/
export function ensureConfigGitExclude(root) {
try {
const gitDir = resolveGitDir(root);
if (!gitDir) return false;
const target = join(gitDir, 'info', 'exclude');
const existing = existsSync(target) ? readFileSync(target, 'utf-8') : '';
const block = [EXCLUDE_OPEN, ...EXCLUDE_PATTERNS, EXCLUDE_CLOSE].join('\n');
const markerRe = new RegExp(`${escapeRegExp(EXCLUDE_OPEN)}[\\s\\S]*?${escapeRegExp(EXCLUDE_CLOSE)}`);
let updated;
if (markerRe.test(existing)) {
updated = existing.replace(markerRe, block);
} else {
const prefix = existing.length === 0 ? '' : existing.endsWith('\n') ? existing : `${existing}\n`;
updated = `${prefix}${block}\n`;
}
if (updated !== existing) {
mkdirSync(dirname(target), { recursive: true });
writeFileSync(target, updated);
}
return true;
} catch {
return false;
}
}
function resolveGitDir(root) {
const dotGit = join(root, '.git');
if (!existsSync(dotGit)) return null;
try {
if (statSync(dotGit).isDirectory()) return dotGit;
// A `.git` file (worktree/submodule) points elsewhere: "gitdir: <path>".
const match = readFileSync(dotGit, 'utf-8').match(/gitdir:\s*(.+)/);
if (match) {
const resolved = match[1].trim();
return isAbsolute(resolved) ? resolved : join(root, resolved);
}
} catch {
/* fall through */
}
return null;
}
function escapeRegExp(value) {
return value.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
}
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# Platform packages
Templates for the `@impeccable/cli-<os>-<arch>` packages the `impeccable` npm
shim (`cli/bin/cli.js`) declares as `optionalDependencies`. npm installs only
the one matching the host (`os` / `cpu` fields), and the shim resolves
`<package>/bin/impeccable[.exe]` from it before falling back to the user cache
or a download.
They are **published from the engine release**, not built here: `bun run
release:platform-packages` (`scripts/publish-platform-packages.mjs`) copies each template, sets `version` to the engine version, drops the
built binary at `bin/impeccable[.exe]` (executable), and publishes it under
`@impeccable`. The version pinned in this repo's `package.json`
`optionalDependencies` must equal `ENGINE_VERSION`.
Targets: `darwin-arm64`, `darwin-x64`, `linux-x64`, `linux-arm64`, `windows-x64`.
@@ -0,0 +1,17 @@
{
"name": "@impeccable/cli-darwin-arm64",
"version": "0.0.0-engine",
"description": "impeccable engine binary for darwin-arm64. Installed as an optional dependency of the impeccable npm package; do not depend on it directly.",
"license": "SEE LICENSE IN LICENSE",
"homepage": "https://impeccable.style",
"repository": {
"type": "git",
"url": "git+https://github.com/pbakaus/impeccable.git"
},
"os": ["darwin"],
"cpu": ["arm64"],
"files": ["bin/", "LICENSE"],
"bin": {
"impeccable-darwin-arm64": "bin/impeccable"
}
}
@@ -0,0 +1,17 @@
{
"name": "@impeccable/cli-darwin-x64",
"version": "0.0.0-engine",
"description": "impeccable engine binary for darwin-x64. Installed as an optional dependency of the impeccable npm package; do not depend on it directly.",
"license": "SEE LICENSE IN LICENSE",
"homepage": "https://impeccable.style",
"repository": {
"type": "git",
"url": "git+https://github.com/pbakaus/impeccable.git"
},
"os": ["darwin"],
"cpu": ["x64"],
"files": ["bin/", "LICENSE"],
"bin": {
"impeccable-darwin-x64": "bin/impeccable"
}
}
@@ -0,0 +1,17 @@
{
"name": "@impeccable/cli-linux-arm64",
"version": "0.0.0-engine",
"description": "impeccable engine binary for linux-arm64. Installed as an optional dependency of the impeccable npm package; do not depend on it directly.",
"license": "SEE LICENSE IN LICENSE",
"homepage": "https://impeccable.style",
"repository": {
"type": "git",
"url": "git+https://github.com/pbakaus/impeccable.git"
},
"os": ["linux"],
"cpu": ["arm64"],
"files": ["bin/", "LICENSE"],
"bin": {
"impeccable-linux-arm64": "bin/impeccable"
}
}
@@ -0,0 +1,17 @@
{
"name": "@impeccable/cli-linux-x64",
"version": "0.0.0-engine",
"description": "impeccable engine binary for linux-x64. Installed as an optional dependency of the impeccable npm package; do not depend on it directly.",
"license": "SEE LICENSE IN LICENSE",
"homepage": "https://impeccable.style",
"repository": {
"type": "git",
"url": "git+https://github.com/pbakaus/impeccable.git"
},
"os": ["linux"],
"cpu": ["x64"],
"files": ["bin/", "LICENSE"],
"bin": {
"impeccable-linux-x64": "bin/impeccable"
}
}
@@ -0,0 +1,17 @@
{
"name": "@impeccable/cli-windows-x64",
"version": "0.0.0-engine",
"description": "impeccable engine binary for windows-x64. Installed as an optional dependency of the impeccable npm package; do not depend on it directly.",
"license": "SEE LICENSE IN LICENSE",
"homepage": "https://impeccable.style",
"repository": {
"type": "git",
"url": "git+https://github.com/pbakaus/impeccable.git"
},
"os": ["win32"],
"cpu": ["x64"],
"files": ["bin/", "LICENSE"],
"bin": {
"impeccable-windows-x64": "bin/impeccable.exe"
}
}