repo-architecture SKILL.md skillA
This file is byte-identical to the first copy the registry indexed. Same content hash, so the same checks give both the same grade.
repo-architecture 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/repo-architecture@v1.0.0Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- garrytan/gbrain
- Path
plugin/skills/repo-architecture/SKILL.md- Versions recorded
- 4
- Latest version
- v1.0.0, committed Oct 7, 2026
- First version recorded
- Aug 16, 2026
- Size
- 2,268 bytes
- Repository stars
- 31,587
- License
- MIT
Where new brain files go. Decision protocol for filing brain pages by primary subject, not by format or source. Reference for all brain-writing skills.
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
# Repo Architecture — Filing Rules
> **Full filing rules:** See `skills/_brain-filing-rules.md`
## Contract
This skill guarantees:
- Every new page is filed by primary subject (not format, not source)
- The decision protocol is followed for ambiguous cases
- Common misfiling patterns are caught
## Phases
1. **Identify the primary subject.** What would you search for to find this page?
2. **Walk the decision tree:**
- About a person → `people/{name-slug}.md`
- About a company → `companies/{name-slug}.md`
- A reusable concept/framework → `concepts/{slug}.md`
- An original idea → `originals/{slug}.md`
- A meeting → `meetings/{slug}.md`
- Media content → `media/{type}/{slug}.md`
- Raw data import → `sources/{slug}.md`
3. **Cross-link.** Link from related directories.
4. **Check notability.** See `skills/conventions/quality.md` notability gate.
## Output Format
Advisory: "File this at `{type}/{slug}.md` because the primary subject is {reason}."
## When it fails
Follow the [agent operator protocol](../conventions/agent-operator-protocol.md) for any gbrain error `code`, exit code, `[AGENT]` block or notice block. Specific to this skill:
…Read the whole file at its exact version.
How to install
mdr add garrytan/gbrain/repo-architecture@sha256:618a40554f5489c2The line at the top of this page pins the label v1.0.0, 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_z5n2hmmgze43vvuf)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Aug 16, 2026 and Oct 7, 2026, about one every 17 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.0.0 latest | 2026-10-07 | 590bb9a | 2,268 B | A | view · diff |
| v1.0.0 | 2026-10-05 | 6509f9b | 2,267 B | A | view · diff |
| v1.0.0 | 2026-10-04 | 739e5cc | 2,144 B | A | view · diff |
| v1.0.0 | 2026-08-16 | df4feda | 1,628 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 (2268 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_z5n2hmmgze43vvuf GET https://markdownregistry.com/api/v1/resolve?ref=garrytan/gbrain/repo-architecture GET https://markdownregistry.com/api/v1/blob/618a40554f5489c2606106a56af3d38dd6db11191e3a0266a817f8a5986e6e16
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.