agentleFS
churin1116churin1116/html-chameleon/CLAUDE.md

html-chameleon

CLAUDE.md2 starsChanged 39 days agoMITView on GitHub

OSS theme contract for HTML artifacts (23 CSS variables + utility classes), distributed via GitHub Pages, consumed by a Skill (authoring) and a Chrome extension (viewing). Full interactive spec: docs/design.html. The extension activates on any one of: If you add / rename / remove a signal, update all of these files in the same commit: extension/content.js, extension/popup.js, extension/README.md, skill/SKILL.md, skill/prompts/generate.md, skill/prompts/convert.md. - No hex / rgb literals in code or markup. Allowed exceptions: - [data-theme="…"] blocks inside theme/v1/theme.css (defining a…

  • Commits and pushes
  • In this repositoryOne other file it gives its agents.

The file

We split this CLAUDE.md into the rules it gives an agent

2 rules. About 0 are common, 1 is distinctive, and 1 is very specific to this project.

  • ≈0

    Common · estimate

    Many files like this have a rule of this kind.

  • ≈1

    Distinctive · estimate

    This author's own choices. Worth a look.

  • 1

    Very specific

    Tied to their project's names, files or tools. Probably skip.

  • Common
  • Distinctive
  • Very specific
  1. Very specific:

    If you add / rename / remove a signal, update all of these files in the same commit: extension/content.js, extension/popup.js, …

    line 25
  2. Distinctive:

    Don't put fixed top-right UI in examples, demos, or Skill-generated artifacts — it will collide.

    line 37

≈ “Common” is an estimate: at least 1 in 5 of the 26,980 CLAUDE.md files we read have a rule of the same kind, not the same words. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.

Keep what fits and drop the rest. Your version, ready for your agents.
Files
CLAUDE.md

Chameleon — project notes

OSS theme contract for HTML artifacts (23 CSS variables + utility classes), distributed via GitHub Pages, consumed by a Skill (authoring) and a Chrome extension (viewing). Full interactive spec: docs/design.html.

Architecture — three components, one contract

PathRole
theme/v1/The contract. /v1/ paths are frozen forever; breaking changes bump to /v2/.
skill/Claude Code Skill (generate / convert modes). Symlinked from ~/.claude/skills/chameleon — edits propagate instantly.
extension/Chrome MV3. Detects Chameleon and injects a floating theme palette into the top-right of the page.
examples/Minimal demos consuming the contract via the hosted CSS.
docs/design.htmlInteractive spec / playground.

The 3 detection signals (must stay coherent)

The extension activates on any one of:

  1. <meta name="chameleon" content="v1"> — emitted by the Skill in both modes
  2. <link rel="stylesheet" href="*html-chameleon*"> — implicit when consumers use the hosted CSS
  3. <html data-chameleon="v1"> — set by theme.js at runtime

If you add / rename / remove a signal, update all of these files in the same commit: extension/content.js, extension/popup.js, extension/README.md, skill/SKILL.md, skill/prompts/generate.md, skill/prompts/convert.md.

Hard rules

  • No hex / rgb literals in code or markup. Allowed exceptions:
    • [data-theme="…"] blocks inside theme/v1/theme.css (defining a preset)
    • PRESETS array in extension/content.js and equivalent inline styles in extension/popup.html (swatch gradients must show fixed preset colors, independent of the page's current theme)
  • Top-right of detected pages belongs to the extension's floating palette. Don't put fixed top-right UI in examples, demos, or Skill-generated artifacts — it will collide. Install CTAs go in the page flow.
  • theme.js loads in <head> WITHOUT defer — synchronous eval prevents FOUC. The Skill prompts enforce this; don't "optimize" it.
  • skill/SKILL.md frontmatter name: chameleon is load-bearing — the global symlink (~/.claude/skills/chameleon) and slash invocation (/chameleon) both rely on it. Renaming requires re-creating the symlink.
  • .nojekyll at repo root must stay — bypasses Jekyll on GitHub Pages so binary assets and underscore-prefixed paths serve cleanly.

Local development

ActionHow
Reload extension after editing extension/*chrome://extensions → reload the Chameleon card
Push a theme.css edit to already-baked pages (via the extension)commit theme.css → node scripts/build-extension-theme.mjs → reload the extension
Verify Pages changegit push to main → wait ~30–60s → curl the URL
Skill prompt editSave the file; propagates instantly via symlink
Regenerate iconspython3 with Pillow on extension/icons/source.png; see commit d548e95 for the rounded-corners script
Release the extension to the Web Storecommit everything → node scripts/release-extension.mjs --bump minor (--dry-run first; --status to follow review). Listing / Privacy tab changes are dashboard-only — see extension/README.md

Frozen Pages URLs (don't break)

https://churin1116.github.io/html-chameleon/
├── theme/v1/theme.css         ← consumers reference this in <link>
├── theme/v1/theme.js          ← consumers reference this in <script>
├── docs/design.html           ← spec + playground
├── examples/{basic,dashboard}.html
└── favicon.ico                ← rounded primary; *-square.* originals preserved

External users embed the theme/v1/* URLs in their HTML. Renaming or moving these breaks them silently — version up to /theme/v2/ instead.

Useful cross-references

  • User-facing docs: README.md
  • Extension specifics: extension/README.md
  • Generate-mode prompt: skill/prompts/generate.md
  • Convert-mode prompt: skill/prompts/convert.md
  • Open design questions: docs/design.html#open

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