reference-pack SKILL.md skillA
reference-pack from garrytan/gbrain is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add garrytan/gbrain/reference-pack@git:20260520.bc9f777Pins git:20260520.bc9f777 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- garrytan/gbrain
- Path
examples/skillpack-reference/skills/reference-pack/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260520.bc9f777, committed May 20, 2026
- Size
- 3,989 bytes
- Repository stars
- 31,587
- License
- MIT
Reference skill demonstrating the 10/10 skillpack contract. Adds a "what does this skillpack do" answer to the user's agent.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# 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 …
Read the whole file at its exact version.
How to install
mdr add garrytan/gbrain/reference-pack@sha256:e15a5cde2b58e2f0The line at the top of this page pins the label git:20260520.bc9f777, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_ag7hv6476exgux4e)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on May 20, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (3989 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
garrytan/gbrain · 31,587 stars · license MIT · pushed 2026-11-06 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_ag7hv6476exgux4e GET https://markdownregistry.com/api/v1/resolve?ref=garrytan/gbrain/reference-pack GET https://markdownregistry.com/api/v1/blob/e15a5cde2b58e2f0dc729a2f529416f8f5d6c7c5f49c1dbcd85ab03cddbfd0a4
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.