schema-author SKILL.md skillA
schema-author 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/schema-author@git:20261007.590bb9aPins git:20261007.590bb9a in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- garrytan/gbrain
- Path
skills/schema-author/SKILL.md- Versions recorded
- 5
- Latest version
- git:20261007.590bb9a, committed Oct 7, 2026
- First version recorded
- Aug 16, 2026
- Size
- 13,994 bytes
- Repository stars
- 31,074
- License
- MIT
Evolve your brain's schema pack. Add page types, propose new ones from corpus scans, backfill page.type on existing pages, audit pack health. Triggers when an agent notices untyped pages, custom domains needing typed entities (researcher, contract, deposition), or wants to see what types the pack declares.
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
# schema-author — evolve your schema pack
## Non-goals (use these other skills instead)
This skill AUTHORS the schema pack (adds page types, link verbs, prefixes,
flags). For these adjacent jobs, route elsewhere:
- **Filing one specific page** → `skills/brain-taxonomist/SKILL.md`. Brain-
taxonomist routes at WRITE TIME ("where does this note go?"). schema-author
changes the rules at AUTHORING TIME ("what types and prefixes exist?").
- **Schema-check as part of EIIRP iteration** → `skills/eiirp/SKILL.md`
already has a schema-check phase. Don't duplicate.
- **Just looking up a type's settings** → `gbrain schema explain <type>`
directly. This skill is for CHANGING the pack, not READING from it.
- **Querying who knows about X** → `gbrain whoknows <topic>` directly.
schema-author makes a type expert-routable; it does not run the query.
## Convention
> **Convention:** see [conventions/brain-first.md](../conventions/brain-first.md) for the lookup chain (search → query → get_page → external).
> **Convention:** see [conventions/schema-evolution.md](../conventions/schema-evolution.md) for "when to add a type vs alias vs prefix" — the heuristic.
## When to invoke
…Read the whole file at its exact version.
How to install
mdr add garrytan/gbrain/schema-author@sha256:549d7d14ae3efd3fThe line at the top of this page pins the label git:20261007.590bb9a, 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_pz3woxeofnxu2fm5)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Aug 16, 2026 and Oct 7, 2026, about one every 13 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261007.590bb9a latest | 2026-10-07 | 590bb9a | 13,994 B | A | view · diff |
| git:20261005.7f7a1fe | 2026-10-05 | 7f7a1fe | 13,993 B | A | view · diff |
| git:20261004.739e5cc | 2026-10-04 | 739e5cc | 13,990 B | A | view · diff |
| git:20260816.5ef85ac | 2026-08-16 | 5ef85ac | 13,314 B | A | view · diff |
| git:20260816.df4feda | 2026-08-16 | df4feda | 13,264 B | A | view |
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 (13994 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 · 31,074 stars · license MIT · pushed 2026-10-22 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_pz3woxeofnxu2fm5 GET https://markdownregistry.com/api/v1/resolve?ref=garrytan/gbrain/schema-author GET https://markdownregistry.com/api/v1/blob/549d7d14ae3efd3f9a6189850bf30ecc9911f61a92d2d8e9ff1d52a99dc765fa
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.