changelog-scan

# Changelog Scan Skill ## Overview Fetches and analyzes the official Claude Code changelog to detect new versions and changes. ## Data Sources | Source | URL | Method | |--------|-----|--------| | Changelog | code.claude.com/docs/en/changelog.md | WebFetch | | Docs Index | code.claude.com/docs/llms.txt | WebFetch | | Hooks Ref | code.claude.com/docs/en/hooks.md | WebFetch | | Plugins Ref | code.claude.com/docs/en/plugins-reference.md | WebFetch | | CLI Ref | code.claude.com/docs/en/cli-reference.md | WebFetch | ## Workflow 1. **Fetch** changelog via the harness CLI (ported from the old `fetch-changelog` into `@fusengine/harness`): `bun ${CLAUDE_PLUGIN_ROOT}/../node_modules/@fusengine/harness/dist/cli/bin.mjs changelog` It fetches `code.claude.com/docs/en/changelog.md`, parses versions (current MDX `<Update label="X.Y.Z">` format + legacy `## vX.Y.Z` fallback), writes state to `~/.claude/logs/00-changelog/<date>-state.json`, and prints JSON `{latest, new_since_last_check, recent_versions}`. WebFetch on the same URL is the manual fallback. 2. **Parse** version numbers and release dates 3. **Extract** changes per version (features, fixes, breaking) 4. **Compare** with last known version from state file 5. **Generate** report using templates/changelog-report.md ## Version Detection Parse patterns from changelog: - `## vX.Y.Z` or `## X.Y.Z` - Version headers - `### Breaking Changes` - Breaking section - `### New Features` - Features section - `### Bug Fixes` - Fixes ...