Instead of injecting the full SKILL.md body as additionalContext, inject
"You must run the Skill(<name>) tool." — a more conventional way of
telling the agent to use the Skill tool for context loading.
Eval analysis of 9 real sessions showed 10 skills never triggering despite being
requested. Root causes: pathPatterns too narrow (agents write to lib/email-template.tsx
not emails/), promptSignals containing regex instead of plain text (vercel-sandbox),
and missing promptSignals entirely (v0-dev, vercel-firewall).
Skills updated: email, vercel-queues, edge-runtime, vercel-firewall, chat-sdk,
v0-dev, vercel-sandbox. New skill: next-forge (bootstrap detection).
New ai-generation-persistence skill (priority 6) injects guidance for treating
AI generations as first-class persistent resources — unique IDs, addressable
URLs, database/Blob storage, cost tracking, and generate-then-redirect UX
patterns. Triggers on AI SDK imports and broad prompt signals.
New verification skill added. Updated ecosystem graph, catalog, manifest,
fixtures, and snapshots.
- Add greenfield project detection to session-start profiler
- Add profiler boost (+5 priority) for likely skills in PreToolUse
- Remove zzz-test-redos-pattern test skill
- Update golden fixtures and snapshots
- Add agent-browser to ecosystem graph
- Add new golden fixture tests
Update build-manifest.ts to include bodyPath in each skill manifest entry pointing to the SKILL.md file. Update all SKILL.md frontmatter across all skills to ensure consistent formatting. Add vercel-config.mjs improvements for key-aware skill routing.
Add tests/build-skill-map.test.ts for skill map construction. Add golden fixture JSON files (golden-bash-cap-collision, golden-bash-next-dev, golden-edit-middleware, golden-read-env-local, golden-read-vercel-json, golden-vercel-json-crons, golden-vercel-json-rewrites) for deterministic match engine validation. Add tests/fuzz-glob.test.ts and tests/fuzz-yaml.test.ts for property-based testing of the glob-to-regex and YAML parsers.
Update snapshot files for injection output. Update validate.ts and validate.test.ts with command convention checks. Update HOOKS.md documentation. Update pretooluse-skill-inject.mjs, skill-map-frontmatter.mjs, and vercel-config.mjs hook modules. Bump plugin.json version from 0.2.0 to 0.3.0.
Create hooks/vercel-config.mjs that reads vercel.json and maps top-level keys (rewrites, redirects, headers, crons, functions) to skill slugs, so skills are injected when the project uses those Vercel features.
Create hooks/logger.mjs with structured logging at four levels (off, summary, debug, trace) controlled by VERCEL_PLUGIN_LOG_LEVEL env var. Support legacy VERCEL_PLUGIN_DEBUG=1 mapping to debug level.
Create src/cli/explain.ts that takes a tool name and input JSON, runs the match engine, and prints which skills would fire and why. Create src/cli/index.ts as the CLI entry point. Create src/commands/doctor.ts for diagnosing plugin setup issues.
Create src/shared/logger.ts and src/shared/match-engine.ts as TypeScript versions of the shared utilities.
Create scripts/build-manifest.ts that reads all SKILL.md files, parses frontmatter, and generates generated/skill-manifest.json.
Add CLAUDE.md documenting the architecture, dedup contract, YAML parser quirks, test conventions, and log levels.
Add tests: tests/cli-explain.test.ts, tests/logger.test.ts, tests/vercel-config.test.ts, tests/snapshot-runner.test.ts with snapshot files in tests/snapshots/. Add test fixtures in tests/fixtures/. Update existing tests to copy new hook modules (logger.mjs, vercel-config.mjs) into temp dirs.
Update package.json with new bin entry and dependencies.
John Lindquist