reference-pack

This is the canonical reference for a third-party gbrain skillpack. Read its tree once and you know how to author one.

What this skill does

When the user asks how third-party gbrain skillpacks work, this skill points them at the four artifacts every pack ships:

• skillpack.json — declares pack metadata + which artifacts the doctor scores (skills, unit_tests, e2e_tests, llm_evals, routing_evals, runbooks, changelog).
• skills/<name>/SKILL.md — frontmatter (name, description, mutating, triggers) plus markdown body. Agents route on triggers:; the body is the in-context instruction set.
• runbooks/bootstrap.md — agent-readable post-scaffold steps. gbrain DISPLAYS this after scaffold lands; the agent walks per-step at its own discretion. No auto-executor (codex T1 supply-chain hardening).
• CHANGELOG.md — Keep-a-Changelog shape. The doctor's changelog_ present_and_current dimension fails if there's no ## [<version>] entry matching the manifest's version.

What the doctor scores

Ten binary dimensions, split into:

Core (5; must all pass to publish at any tier):

1. manifest_valid — schema-validates skillpack.json
2. skills_have_skill_md — every listed skill has SKILL.md with name / description / triggers
3. routing_evals_present — each skill has routing-eval.jsonl with

   = 5 intents

4. skills_have_unique_triggers — MECE at the pack level
5. changelog_present_and_current — CHANGELOG entry for current version

Quality badges (5; earn for tier eligibility):

6. unit_tests_present — manifest.unit_tests matches >= 1 file
7. e2e_tests_present — manifest.e2e_tests matches >= 1 file
8. llm_eval_present — *.judge.json with >= 3 cases
9. bootstrap_runbook_present — non-empty runbooks/bootstrap.md
10. license_present — LICENSE / LICENSE.md / LICENSE.txt non-empty

Tier eligibility:

• endorsed — all 10 (gates: Garry's endorsements.json overlay in the registry)
• community — all 5 core + >= 3 of 5 badges (default tier on PR merge)
• experimental — all 5 core + < 3 badges
• blocked — any core fails

Run gbrain skillpack doctor <pack-dir> to see exactly which dimensions a candidate pack passes and the paste-ready fix for each failure. --fix --yes auto-scaffolds the dimensions flagged auto_fixable: true (routing-eval stubs, CHANGELOG entries, license stub, bootstrap stub, test stubs).

How agents use this skill

The triggers above route any "what is a skillpack" / "how do third- party packs work" user phrasing to THIS skill. The agent reads the markdown body, then either answers the user's question directly or calls gbrain skillpack info <name> / search <query> for live registry data.

Test + eval coverage

• test/example.test.ts — unit test that imports the skill helper (stub; replace with real assertions).
• e2e/example.e2e.test.ts — integration test gated on DATABASE_URL.
• evals/reference-pack.judge.json — LLM-judge eval scoring this skill's output against the "does it actually teach the contract" bar across happy-path / edge / failure-mode cases.
• skills/reference-pack/routing-eval.jsonl — five phrasings users ask, all mapped to expected_skill: reference-pack.

Author's checklist

Before pushing, the publisher runs:

gbrain skillpack doctor . --quick --json
gbrain skillpack pack

The first hits the rubric and prints paste-ready fixes for any failed dimension. The second emits reference-pack-<version>.tgz with a deterministic SHA-256 the publisher submits to the registry PR.