* Add a platform axis (web / ios / android / adaptive) to the skill
Orthogonal to register: register decides whether design IS or SERVES the
product; platform decides the delivery target and which native conventions
apply. Set `## Platform` in PRODUCT.md; a missing field defaults to `web`,
so legacy projects are unaffected.
- extractPlatform() in skill/scripts/context.mjs (mirrors extractRegister);
the CLI appends a NEXT STEP directive to read the native reference(s).
`adaptive` (Flutter / RN / KMP shipping both iOS and Android) loads both
ios.md and android.md.
- New reference/ios.md (Apple HIG distilled) and reference/android.md
(Material 3 distilled); reference/web.md is a thin pointer. The native
refs frame register's role as narrow: platform conformance is the bar,
brand lives in the expressive layer the platform gives you, never by
breaking the rails.
- Setup step 5 loads the native reference(s) when platform is native. Live
mode and the detect CLI stay web-only, gated off ios/android/adaptive.
- init asks platform right after register; adapt/audit/animate/layout carry
short platform divergence notes; all secondary spots thread `adaptive`.
- a11y stays in audit.md (loading it at design time makes output timid), so
the native refs carry no Accessibility section; audit.md's Platform
section owns native a11y.
- Tests: extractPlatform unit coverage + skill-behavior scenario 10
(PRODUCT.md platform ios -> agent loads ios.md).
Source-first: only skill/, scripts/, tests/, CLAUDE.md, NOTICE.md, the
changelog and version are committed; the sync workflow regenerates the
provider trees and ./plugin on merge.
ios.md / android.md are distilled from the MIT-licensed
ehmo/platform-design-skills; attribution in NOTICE.md.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* Address review: gate web tools on native platforms, drop version churn
Maintainer-review fixes applied with AI assistance (Claude Code), on top
of the rebased platform-axis commit:
- Design hook (post-edit and Cursor pre-edit) now resolves the project
platform via loadContext + extractPlatform and skips its web rule scan
for ios / android / adaptive projects, so React Native / Flutter code
never draws web-shaped findings (new hook-lib resolveProjectPlatform /
isNativePlatform helpers, covered by unit and subprocess tests).
- context.mjs CLI warns on an unrecognized ## Platform value (e.g. a
toolchain name like `flutter`) instead of silently defaulting to web;
extractRegister / extractPlatform now share extractSectionValue.
- Removed reference/web.md: nothing loaded it; CLAUDE.md carries the
"web has no extra rulebook" explanation.
- init.md: skip live-mode config (Step 6) for native platforms; note the
per-app PRODUCT.md pattern for repos shipping web + native.
- android.md: Material-everywhere apps that also ship on iPhone still
owe iOS OS guarantees (safe areas, Reduce Motion, edge-swipe back).
- ios.md: reworded a design-time line that framed Dynamic Type as an
accessibility check (a11y stays owned by audit.md).
- Renumbered the new skill-behavior scenario to 14 after main's 10-13;
updated CLAUDE.md scenario list; added android + unrecognized-value
CLI test cases.
- No version or changelog changes: versioning happens at release time.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* Tighten platform reference prose
Editorial pass on the platform-axis text, applied with AI assistance
(Claude Code) under maintainer direction:
- ios.md / android.md rewritten to house style: single-line paragraphs
(no hard wraps), one-sentence scope intro, deduplicated intro/slop-test,
register-compression down to two sentences. In-file attribution
paragraphs removed (NOTICE.md owns attribution); "read on top of the
register reference" cruft removed (SKILL step 5 and the context.mjs
directive already say it). Bans sections dropped: they restated the
rules above them; the two additive items (tab-bar overload,
hover-dependent affordances) folded into rules. ~40% smaller each.
- Sub-command Platform sections (adapt, audit, animate, layout), SKILL
step 5, init.md platform prose, and the context.mjs directive trimmed
the same way.
Build (prose validators, counts) and both test runners green.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* Treat an empty PRODUCT.md section as absent, not the next heading
Copilot review catch: extractSectionValue read the next `## ...` heading
as the section value when a field was left empty, which made the CLI
warn "value `## Product Purpose` is not recognized". Stop at the next
heading and return null instead. Regression tests for extractPlatform,
extractRegister, and the CLI warning path. Applied with AI assistance
(Claude Code) under maintainer direction.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* Only read a token list of both native targets as adaptive
Bugbot catch: after the exact platform tokens failed, any Platform line
containing the words ios and android was classified adaptive, so
negated or explanatory prose ("web only, not ios or android") silently
loaded both native refs and skipped the hook, with no warning. The
combo parse now accepts only list separators and the two platform
words; anything else falls through to the CLI's unrecognized-value
WARNING. Regression tests added. Applied with AI assistance (Claude
Code) under maintainer direction.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Co-authored-by: Paul Bakaus <paul.bakaus@gmail.com>
Merged ten tactical items from ehmo/typecraft-guide-skill into the typography
reference at the upstream author's request: dark-mode weight/tracking/leading
compensation, font-display: optional vs swap, preload-critical-weight-only,
variable fonts for 3+ weights, clamp() max-to-min ratio bound, container/
font-size coupling to preserve measure, text-wrap: balance / pretty,
font-optical-sizing: auto, quantified ALL-CAPS tracking (5-12%), and the
paragraph-rhythm rule (space OR indent, never both).
Skipped: platform-specific tables (iOS/Android/print), confidence markers,
severity-graded report format, academic sources, and the punctuation
subsection (em-dash prescription conflicts with the project copy rule).
Attribution lives in NOTICE.md, not inside the skill content.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Pioneers a two-file convention for project context:
- PRODUCT.md (strategic): users, brand, principles — answers who/what/why
- DESIGN.md (visual): follows Google's Stitch DESIGN.md spec — answers how-it-looks
Both files live at the repo root. Filename matching is case-insensitive.
DESIGN.md wins on visual conflicts, PRODUCT.md wins on strategic/voice.
Legacy .impeccable.md is auto-migrated to PRODUCT.md on first read by the
new shared loader. This is silent and one-shot — the rename is permanent.
What changed:
- New scripts/load-context.mjs: shared context loader used by every command
that needs project context. Reads both files, handles legacy migration.
- New reference/document.md: /impeccable document command that generates
DESIGN.md by auto-extracting tokens (colors, typography, spacing, radii,
shadows, components) from CSS/Tailwind/theme files, then asking the user
to confirm descriptive language for atmosphere and color character.
Follows Google's Stitch DESIGN.md format for tool compatibility.
- SKILL.md Context Gathering Protocol updated to load both files and
nudge the user to run /impeccable document when DESIGN.md is missing.
- reference/teach.md rewritten to split discovery cleanly: strategic
questions go to PRODUCT.md, visual/design-system work is delegated to
/impeccable document (skipped on empty projects).
- reference/live.md consumes {product, design, productPath, designPath,
migrated} from the loader instead of a single context blob.
- scripts/live.mjs uses the shared loader instead of inline file reading.
- Command count updated 22 → 23 (new: document). Metadata, router table,
command menu, periodic table viz, and homepage data all updated.
- .gitignore adds PRODUCT.md + DESIGN.md (repo-local, not shared).
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
New feature: /impeccable live starts an interactive visual iteration server.
Users select elements in the browser, pick a design action (bolder, quieter,
etc.), and the agent generates HTML+CSS variants written directly to source.
The dev server's HMR hot-swaps them in, and MutationObserver progressively
reveals each variant in a cycler UI as it arrives.
Architecture:
- src/live/server.mjs: HTTP + WebSocket server with session token auth,
long-poll /poll endpoint for the agent, WebSocket for the browser
- src/live/poll.mjs: CLI client (npx impeccable poll / poll --reply)
- src/live/browser.js: element picker with keyboard nav (arrows=siblings,
shift+arrows=parent/child), action panel (12 commands, freeform input,
variant count), variant cycler with progressive reveal via MutationObserver
- src/live/protocol.mjs: shared message types and event validation
- source/skills/impeccable/reference/live.md: agent loop instructions
(inject script, poll loop, generate variants, accept/discard, cleanup)
CLI changes:
- bin/cli.js: added "poll" top-level command
- src/detect-antipatterns.mjs: liveCli() now delegates to src/live/server.mjs
- package.json: added ws dependency
Registered /impeccable live as command #22 across all standard locations.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Pre-3.0, onboard was folded into /harden when we were trying to reduce
namespace pollution. In the single-skill model that tradeoff is gone,
so the weakest of the old merges is the first to undo.
Harden and onboard live in different mental modes. Harden is defensive
(edge cases, i18n, overflow, errors). Onboard is activation (first-run
flows, empty states as CTAs, progressive disclosure). A user thinking
"design the onboarding flow" was never going to type /impeccable harden.
Changes:
- New reference file at source/skills/impeccable/reference/onboard.md,
restored from the pre-merge version in git history rather than the
condensed 33-line summary that was in harden.md.
- Removed the "Onboarding & First-Run Experience" section from
source/skills/impeccable/reference/harden.md.
- Updated harden description/editorial/process-steps to drop onboarding
keywords; split commandProcessSteps so harden stays focused on
production resilience and onboard gets its own phases.
- Registered onboard in: SKILL.md description + command menu + router
table, command-metadata.json, IMPECCABLE_SUB_COMMANDS, pin.mjs
VALID_COMMANDS, SKILL_CATEGORIES, COMMAND_RELATIONSHIPS, data.js
commandCategories + commandProcessSteps + commandRelationships,
framework-viz commandSymbols + commandNumbers.
- Reused the existing content/site/skills/onboard.md editorial wrapper
(it was orphaned by the merge but never deleted), updating it to use
/impeccable onboard.
- Bumped all user-facing count references 20 -> 21: public/index.html,
CLAUDE.md, README.md, NOTICE.md, plugin.json, marketplace.json,
sitemap.xml, build-sub-pages.js.
- Harness dir audit.md and critique.md changes are the
{{available_commands}} placeholder expanding to include onboard.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Biggest change in a while. Users previously had 18 standalone skill
entries cluttering their /menu; now they have one entry (/impeccable)
that routes to 20 specialized commands via argument dispatch. The pin
mechanism (/impeccable pin audit) restores standalone shortcuts on
demand for commands users hit all the time.
## Architecture
- Single /impeccable skill with command router section in SKILL.md
- 20 commands served via reference files under source/skills/impeccable/reference/
- /impeccable pin <command> creates a lightweight redirect shim so users
who prefer /audit, /polish, etc. can still have them
- Context gathering (teach) auto-runs on first use
- command-metadata.json is the single source of truth for command
descriptions, argument hints, and relationships
## Site rewrite
- Docs URL: /skills renamed to /docs (with /skills permanent redirects)
- Homepage hero frames Impeccable as "one skill with 20 commands"
- "Get Started" split into 50/50 install + how-to-use with editorial
numbered steps, /impeccable shown as the home command with three modes
- New /docs overview: home command hero card + dense category rows
matching the old cheatsheet density, with leads-to/pairs-with/
combines-with relationship metadata served from a shared source
- Cheatsheet merged into /docs, /cheatsheet redirects
- Magazine spread and mobile cards show /impeccable as a stacked
namespace label above the command name at full display size
- Periodic table updated with craft/teach/extract as first-class cells
- Skill detail pages generate from reference files, with an editorial
wrapper per command for tagline + body
- Tutorials and anti-patterns pages updated to use /impeccable <cmd>
## Build system
- Dead code removed (scripts/lib/transformers/shared.js)
- Build log wording fixed ("1 skill" not "1 skills (1 user-invocable)")
- generateApiData fallback branch removed (throws loudly if metadata
missing instead of silently degrading)
- Commands API includes editorial tagline alongside the long description;
UI surfaces prefer tagline for human display, description for auto-
trigger keyword matching
## Gitignore
- Added .claude/scheduled_tasks.lock, .claude/settings.local.json to
ignore list (local Claude Code state that should not be tracked).
- Harness skill directories (.claude/skills/, .agents/skills/, etc.)
remain tracked by design: npx skills reads them from this repo at
install time and they enable clean submodule use.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
A new icon-tile-stack detection (the canonical AI feature-card with a
small rounded-square icon container above a heading), backed by a
two-column TDD fixture, plus a single-source-of-truth design that ties
the engine to the impeccable skill so they can no longer drift silently.
Detection
- New icon-tile-stack rule (slop): heading's previousElementSibling is
a 32–128px rounded-square element with a non-transparent background
or border, contains an svg/icon-i child, and sits above (not next to)
the heading. Excludes round avatars, wide thumbnails, side-by-side
layouts, tiny icons, and hero images.
- Two-column fixture convention: a single icon-tile-stack.html with a
flag column (4 cases) and pass column (6 cases), with snippet-text
matching used by the fixture test.
Single source of truth
- Each ANTIPATTERNS entry can now declare skillSection + skillGuideline.
18 of 25 rules carry these fields; the build's new
validateAntipatternRules() in scripts/build.js fails if any declared
skillGuideline isn't found verbatim in the right SKILL.md section.
- scripts/build-extension.js now includes the description field in
extension/detector/antipatterns.json (it was previously dropped).
- The existing count validator was promoted from warn to error so
command count drift fails the build the same way detection drift does.
Impeccable skill DON'Ts
- Added 4 new top-level DON'Ts that target real default AI behavior:
single-font, flat-type-hierarchy, all-caps-body, line-length.
- Cut 7 new DON'Ts I had drafted (tight-leading, tiny-text, wide-tracking,
justified-text, low-contrast, cramped-padding, skipped-heading) because
they teach things every model already knows from CSS/a11y basics. The
detector still catches all of them.
Stale count cleanup
- 22 commands → 21 across 17 references in HTML, README, NOTICE, AGENTS,
plugin.json, marketplace.json (left over from the validate skill removal).
- Dropped the hand-coded "212 design guidelines" marketing copy on the
homepage, which never mapped to any real count.
Sub-agent
- New private .claude/agents/anti-patterns.md captures the full TDD
recipe, schema, plug-in points, jsdom constraints, and pre-commit
checklist so future sessions can add rules end-to-end without
re-investigating the wiring.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Merges the impeccable-detect CLI repo (pbakaus/impeccable-cli@831a6cc)
into this repo. The BSL-1.1 license that motivated the split is gone;
everything is now Apache 2.0.
- Add bin/, src/, detection tests and fixtures from CLI repo
- Merge package.json: name → "impeccable", add bin/exports/files fields
- Internal refs now read from local src/ instead of node_modules/
- Update SPDX headers, NOTICE.md, CLAUDE.md, FAQ, npm README
- Add prepack/postpack scripts for CLI-focused README on npm
- Remove terminal license labels (no longer needed)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
The CLI and detection engine now live in pbakaus/impeccable-detect
(published as 'impeccable' on npm, BSL-1.1). This repo is purely
Apache 2.0: skills, prompts, website, and build system.
- Remove bin/ (CLI moved to CLI repo)
- Remove README.npm.md (moved to CLI repo)
- Remove @impeccable/detect dependency, add impeccable dependency
- Set package.json to private (no longer published to npm)
- Update all references from @impeccable/detect to impeccable
- Update CLAUDE.md, NOTICE.md, FAQ, and changelog
- Rebuild all provider skill distributions
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Disclose that @impeccable/detect (BSL-1.1) is a transitive dependency
of this Apache 2.0 project, with a summary of the license terms.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Build system now computes authoritative counts from source (22 commands,
24 detection rules) and warns about mismatches in HTML, README, plugin
configs. Generates public/js/generated/counts.js for frontend use.
Fixed 15 stale references across index.html, cheatsheet.html, README.md,
NOTICE.md, AGENTS.md, plugin.json, and marketplace.json. Changed all
"20 commands" to "22", "25 rules" to "24". Fixed v1.6.0 changelog date
(was March 24, after v2.0.0's March 20; now March 18).
Changelog entries are excluded from validation since historical counts
were correct at time of release.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Major skill consolidation for v2.0:
- Rename source/skills/frontend-design/ to source/skills/impeccable/
with user-invocable: true and argument-hint: "[teach]"
- Fold teach-impeccable body into impeccable as "Teach Mode" section,
activated via /impeccable teach
- Create deprecation shims:
- frontend-design: redirects to /impeccable
- teach-impeccable: redirects to /impeccable teach
- Update all 16 skill cross-references from {{command_prefix}}frontend-design
to {{command_prefix}}impeccable and {{command_prefix}}teach-impeccable to
{{command_prefix}}impeccable teach
- Update CLI sentinel detection to use 'impeccable' (with teach-impeccable
as legacy fallback)
- Update build system readPatterns() path and EXCLUDED_FROM_SUGGESTIONS
- Update all public files (data.js, cheatsheet, index, viz, demos)
- Update all documentation (README, NOTICE, AGENTS, plugin.json)
- Update all test expectations
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
New skill that pushes interfaces past conventional limits with
bleeding-edge browser APIs: WebGPU shaders, scroll-driven animations,
View Transitions, generative art, spring physics, and more.
Key design decisions:
- Strong "when to use / when not to" guardrails
- Progressive enhancement is non-negotiable
- "Pick ONE hero moment" philosophy — restraint in choosing where
- The extraordinary/gimmicky line defined explicitly
- prefers-reduced-motion respect required
Also updates all counts to 20 commands across website, docs, and
plugin metadata.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Add to data.js (process steps, categories, relationships)
- Add to framework-viz.js (periodic table symbols and numbers)
- Create before/after demos for both commands
- Update command count 17→19 across all locations:
index.html, cheatsheet.html, README, NOTICE, AGENTS,
plugin.json, marketplace.json
- Add critique→typeset/arrange in relationship flow
- Add "Adding New Skills" checklist to CLAUDE.md so future
skill additions don't miss any locations
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Rewrite README to be user-focused (move dev info to DEVELOP.md)
- Credit Anthropic's original frontend-design skill
- Change license from MIT to Apache 2.0 for consistency
- Add NOTICE.md with proper attribution
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
