Overlap audit after the new-work split. brand.md slims to family depth
that exists nowhere else (aesthetic-lane tests, named-reference
discipline, brand layout moves and permissions); everything it
duplicated against new-work.md and the core (font procedure, reject
list, color strategy, imagery, scale/leading) is deleted, killing the
two-copies-drift hazard. product.md keeps its Operate depth nearly
intact (it was not duplicated) and gains a scope note covering Read
surfaces. craft.md becomes pure orchestration: gates, foundation,
shape handoff, image-gen flow, engineering bar, iterate, present;
its duplicated design guidance (imagery rules, visual-craft bullets,
mandatory reference reads) is replaced by pointers to SKILL.md's
craft floor and new-work.md.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Architecture per Paul: impeccable is primarily a daily driver on
existing codebases; the always-loaded core should serve that 90% path,
not carry the full generative arsenal on every invocation. SKILL.md now
holds brief-wins, existing-worlds (the headline path), the four visitor
modes, the full craft floor, and a hard gate: new identity work
(greenfield, or a redesign discarding the current look) MUST read
reference/new-work.md before any design decision. That file carries the
generative playbook (seed, subject grounding, plan/self-check/signature,
hero-thesis, everything-bold, prove-don't-claim, color commitment,
calibration, persuade type/imagery). context.mjs enforces the gate
mechanically: NEW_WORK directive when no PRODUCT.md/DESIGN.md exists,
and the old mandatory register-file read is replaced by a REGISTER
family hint. No surfaces: map anywhere; mode is derived per task.
Gate compliance is measurable via skillEvidence.directSkillFileReads.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Field report: impeccable SaaS-ified a developer docs page; the Opus
galleries showed the same on an album page. Root cause: two registers
force every surface into persuade-or-operate grammar. The register
section now names the visitor's mode first (Persuade / Operate / Read /
Experience) with mode-borrowing called out as the canonical failure,
and PRODUCT.md's register field maps as family (brand = Persuade +
Experience, product = Operate + Read) for compatibility. Read mode:
comprehension deliverable, navigable structure, chrome out of the way.
Experience mode: the artifact leads at every screen size.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Paul's Opus gallery observation: every impeccable 05-experimental-album
generation reads decidedly SaaS while frontend-design's open with the
art itself, especially at narrow viewports. Cause: the brand register
prescribed stop-the-scroll/earn-the-click/convert for ALL brand
surfaces. Split the register's deliverable by surface: product/service
pages convert; cultural surfaces (album, portfolio, publication, body
of work) lead with the artifact, recede the interface, and treat
conversion grammar as a category error — the visitor meets the work in
the first viewport at every screen size.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Paul: everything should be bold, nothing bland; bold is neither
decoration nor clutter but commitment to the concept, whose form the
concept chooses (maximal or severely clean, drenched or monochrome,
piercing copy, the product demonstrating itself). Replaces the
'spend your boldness in one place' rule imported from frontend-design,
whose one-bold-element-on-a-quiet-page framing pulled pages toward the
tasteful softness the galleries showed losing. The signature becomes
where the concept peaks rather than the only place it lives.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Paul's spot-check of the Fable validation galleries: frontend-design's
lektor generations read vastly more distinctive and subject-faithful
despite losing the overall pairwise verdict on craft. The arena agrees
on the axis (distinctiveness 8-31 at n=5). Two additions to the core:
the opening viewport is a thesis (open with the most characteristic
thing in the subject's world, with a concrete memory test), and an
explicit polish-is-the-floor counterweight so the craft floor stops
reading as a mandate for quiet.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Eval evidence showed the per-edit PostToolUse stream fires overwhelmingly
on copy-level rules (em-dash-overuse ~97x/session) and measurably makes
models more conservative, while a full-detector pass at completion is what
actually fixes contrast/padding/glow. Split the hook accordingly:
- Per-edit (PostToolUse) now surfaces only IMMEDIATE_TIER_RULES: broken
output (broken-image, text-overflow, clipped-overflow-container,
body-text-viewport-edge), objective contrast/legibility failures
(low-contrast, gray-on-color, tiny-text), single-property mechanical
slop (gradient-text, dark-glow), and design-system drift (the four
design-system-* rules, which compound if left uncorrected). Everything
else defers. Override with hook.perEditRules: "all" in
.impeccable/config.json. Tiering is off for Cursor/Copilot harnesses,
which have no Stop pass wired, so nothing gets silently dropped there.
- Stop deep pass (runStopHook): runs the FULL rule set over every UI file
touched this session (tracked via the existing hook.cache.json session
state; deferred-only edits now mark the file touched), dedupes against
everything already surfaced per-edit, honors ignore-rule/file/value and
inline disables, reuses the [impeccable@1] envelope, and no-ops fast
when no UI files were touched. Emits hookSpecificOutput
{ hookEventName: "Stop", additionalContext } per the Claude Code SDK
Stop contract (conversation continues so the model can act on it).
Second Stop fire is silent - deep-pass findings are remembered.
- Wiring: Stop entries (timeout 30) in plugin/hooks/hooks.json, the
.claude settings + .codex hooks manifests (transformers + hook-admin
repair path). Claude Code and Codex both dispatch a native Stop event;
Cursor's stop hook is inconsistently dispatched (pre-write gate stays)
and Copilot's agentStop/sessionEnd don't inject model context, so
neither gets a Stop entry - documented in reference/hooks.md.
- Tests: tiering split/override/harness gating, Stop dedupe + silent
no-touched-files + ignore machinery + kill switches; existing per-edit
tests moved to immediate-tier rule ids. 181 tests green; smoke-tested
the built dist skill end to end (glow surfaced per-edit, em-dash only
at Stop, second Stop silent).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Pairwise evals on Fable one-shot (6-task regression set, opus-4-8 judge,
position-bias-cancelled): the hand-distilled ~55-line lean core beat the
heavy v4 core 66% overall / 67% craft head-to-head, and moved the
decisive win-rate vs frontend-design from 13% to 27% (40% with the
completion-time QA scan; craft went positive 6-5 for the first time).
18/18 lean samples ran context.mjs + palette.mjs vs a minority under the
heavy core: shorter instructions get followed. Context weight itself was
suppressing both compliance and boldness.
Structure: persona + brief-wins + existing-worlds + subject-grounding +
plan/self-check + boldness + prove-don't-claim + commit + calibration +
compressed craft floor + two-paragraph registers. Commands table kept;
the no-arg context-aware menu logic moved to reference/routing.md (read
on demand in the only case that is inherently interactive). Provider
blocks and rule anchors preserved.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Judge rationales across cand-v4a2 arenas: competitor wins by showing
the product working (mix panels, comparison tables, live demos) and by
signatures big enough to organize the page; our samples claim, decorate,
and sometimes stop at the hero.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Eval evidence (cand-v4a1-prose): palette.mjs handed a random violet seed
to the Polish-TV lektor brief and the model anchored on it, overriding
subject-grounding; craft/shape user gates can't fire in one-shot runs
and each model improvises around them. Seed is now a reflex-check that
yields to a subject-dictated palette; craft/shape gain an explicit
unattended mode (same bar, no waiting); init interview is skipped when
no user can respond.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Per Paul's guidance: (1) existing committed design systems are the
bread-and-butter case and get a first-class core rule (work inside the
world, no parallel colors/fonts/styles, no perf regressions); (2) a
redesign that discards the current look is new identity work and runs
the full concept/tokens/signature process instead of anchoring to the
incumbent skeleton (the lektor failure); (3) the reflex-reject font list
and physical-object font procedure are brand-register rules, moved out
of the universal Commit section — system stacks and workhorse UI faces
are legitimate, often correct, for product UI, stated positively in the
product register.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
One-shot evals on Fable 5 (impeccable-evals notes/fable-oneshot-craft-plan.md)
showed the reference-file architecture failing: models skip the register
reads, so most design guidance never reaches them, and skill-on collapses
toward bare-model output (0/9 pairwise wins vs frontend-design on r10).
SKILL.md is now self-contained for one-shot work: persona, the-brief-wins
rule, ground-it-in-the-subject, a plan/tokens/signature/self-check process
gate, commitment guidance, a compact inline craft floor, and distilled
brand/product registers. Reference files remain as sub-command flows and
optional depth. The enumerated absolute-bans list is retired from prose;
mechanical slop enforcement moves to the detector/hook.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* Add OpenAI plugin submission bundle
Build a Codex-native OpenAI plugin with bundled hooks, public listing metadata, submission guidance, privacy coverage, and regression tests.
AI assistance: OpenAI Codex prepared and validated these changes under maintainer direction.
* Fix provider script command rendering
Replace heuristic rewrites across executable scripts with one explicit provider marker, render pinned shortcuts per target harness, and remove the personal email from the public publisher manifest.
Addresses automated review feedback on PR #363.
AI assistance: OpenAI Codex prepared and validated these changes under maintainer direction.
Codex loads bundled plugin lifecycle hooks from `hooks/hooks.json` using a
strict schema that accepts only the top-level `hooks` field. The
plugin-packaged manifest carried a top-level `description`, so Codex rejected
the whole manifest with `unknown field description, expected hooks` and the
post-edit design detector never registered (issue #330).
Drop `description` from `buildClaudePluginHooksManifest()` and regenerate
`plugin/hooks/hooks.json`. The Claude Code plugin path is unaffected (it only
reads the `hooks` object). Add a regression assertion for the plugin artifact
and bump the skill version to 3.9.1.
Claude-Session: https://claude.ai/code/session_013GTTHY6uHwESUyAgjUEm7x
Co-authored-by: Claude <noreply@anthropic.com>
* Point DESIGN.md spec links at the open-source GitHub spec.
The Stitch docs site is client-rendered and unreliable for agent fetch; the
google-labs-code/design.md repo tracks the latest machine-readable spec.
Co-authored-by: Cursor <cursoragent@cursor.com>
* Sync plugin and harness copies after DESIGN.md spec link update.
build:release copies skill/reference into plugin/ and all harness dirs, so
refresh those generated outputs here instead of leaving plugin/ stale.
Co-authored-by: Cursor <cursoragent@cursor.com>
* Use raw GitHub URL for DESIGN.md spec in agent-facing refs.
The blob URL serves HTML; raw.githubusercontent.com returns plain markdown
that agents can fetch directly.
Co-authored-by: Cursor <cursoragent@cursor.com>
---------
Co-authored-by: Cursor <cursoragent@cursor.com>
The bundled detector's cli/main.mjs imports ../../lib/impeccable-config.mjs,
which in the source CLI resolves to cli/lib/impeccable-config.mjs. The skill
build only copies cli/engine/** into scripts/detector/**, leaving that
dependency behind, so from the bundled scripts/detector/cli/main.mjs the same
import resolved to scripts/lib/impeccable-config.mjs and failed with
"Cannot find module .../lib/impeccable-config.mjs". /impeccable critique (and
any detector-backed command) crashed on startup for every provider since #252.
Teach the detector bundler to copy out-of-bundle engine dependencies into the
skill's scripts/lib/, and add a build test that walks every bundled script and
asserts each relative import resolves to another bundled file, so a future
out-of-bundle dependency fails the test instead of the user.
Skill v3.7.1 (patch). CLI unchanged — the engine resolves fine in the CLI's
own tree; only the skill bundling was wrong.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* feat(hooks): package design hook in plugin, install to settings.local.json
Three related changes to how the Impeccable design hook is distributed,
plus an unrelated build fix discovered along the way.
Package the hook in the Claude Code plugin
- The marketplace / `/plugin install` path previously shipped the skill and
agents but no hook, so those users never got the design detector. The build
now emits `plugin/hooks/hooks.json` (auto-discovered at the plugin root),
resolving the script via `${CLAUDE_PLUGIN_ROOT}` so it works wherever Claude
Code unpacks the plugin instead of assuming a `.claude/skills/` layout.
CLI installs the hook into settings.local.json, not shared settings.json
- `npx impeccable skills install/update` now writes the Claude hook to the
gitignored `.claude/settings.local.json` (a machine-local install side
effect) rather than the team-shared `settings.json`, which could otherwise
be committed and break for teammates without the skill installed.
- Graceful handling (leave-it-never-duplicate): if our hook already lives in
the shared `settings.json` (a legacy install or a deliberate user move), it
is honored in place and never duplicated into the local override, which
would otherwise run the detector twice per edit.
- The skill's `/impeccable hooks on|off` toggle is unaffected: it only writes
`.impeccable/hook.json`, never the settings files.
Fix universal.zip build failure under archiver v8
- `archiver` was bumped to v8 (now ESM, factory function removed) but
`scripts/lib/zip.js` still used the old `archiver('zip', ...)` API, so every
build silently failed to produce `dist/universal.zip` (the skill-release
artifact). Switched to `new ZipArchive({...})`.
Also folds in a pre-existing local rename of the hook status message
("Scanning design" -> "Checking UI changes") and its regenerated provider
output.
Tests: new coverage for the plugin-packaged hook manifest and the
shared-settings honor-in-place path; existing CLI assertions moved to
settings.local.json. Full suite green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* fix(cli): detect hook by marker, not file existence (Bugbot)
hookInstalledForProvider treated any existing settings.local.json (or
hooks.json) as proof the hook was installed. Those files commonly hold
unrelated local settings, so the already-installed `skills install` path
would skip repairing a genuinely missing hook that `update` would add.
Detect the Impeccable marker in the file instead of mere existence. Adds a
test for the exact case: a settings.local.json with only permissions still
triggers hook repair and preserves the unrelated content.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* test(build): fail loud on a broken release zip + cover the zip writer
Close the gap that let the archiver v8 break ship a 0-byte universal.zip
with a green test suite:
- createProviderZip no longer swallows failures. It throws on a missing
source, an archive with zero entries, or a 0-byte output, and build() now
exits non-zero on any such rejection. A build that can't produce its release
artifact fails instead of deploying an empty bundle.
- New tests/zip.test.mjs exercises the real zip writer and round-trips through
extract-zip (the unpacker the CLI uses): a valid bundle unpacks to the skill
tree, and the empty/missing-source cases throw. Wired into the core suite so
it runs in `bun run test`.
Why this matters: the prior CLI e2e tests stub the bundle as a local
directory, so they never built, downloaded, or unzipped a real archive. The
zip writer had no coverage and failed soft, so Dependabot's archiver 7->8
major bump merged green and the deploy shipped an unusable bundle.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* fix(cli): scope hook marker scan to the hooks subtree + prune local dupes (Bugbot)
Two follow-ups from Bugbot:
- fileHasImpeccableHookMarker scanned the whole settings file as raw text, so
an unrelated string (e.g. a permissions allow entry that mentions the hook
path) could falsely read as an installed hook and block install/repair or
the shared-settings skip. Now it parses the JSON and scans only the `hooks`
subtree.
- When the hook is honored in the shared settings.json, copyProviderHooks
skipped the local write but left a stale hook in settings.local.json from an
earlier machine-local install, so Claude Code loaded both and ran the
detector twice per edit. It now prunes the local copy (preserving unrelated
local settings, dropping the file if only our scaffolding remained).
Adds tests for both: a permissions string mentioning the hook path still
triggers repair, and a shared hook prunes the stale local duplicate while
keeping unrelated permissions.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Paul BakausandClaude Fable 5
github-actions[bot]
