brain-scan SKILL.md skillA
brain-scan from getedgehq/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add getedgehq/skills/brain-scan@git:20260921.4b868a5Pins git:20260921.4b868a5 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- getedgehq/skills
- Path
brain-scan/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260921.4b868a5, committed Sep 21, 2026
- First version recorded
- Sep 20, 2026
- Size
- 5,736 bytes
- Repository stars
- 5
- License
- Apache-2.0
Scan authorized Claude, Codex, or OpenCode session logs for recurring correction themes, reconstruct real tasks, and measure whether a selected Skill improves the actual output in a blinded no-Skill versus explicitly-loaded comparison. Use when someone asks for an agent brain scan, wants to know which Skills materially help their own work, or asks to test a Skill against their real sessions.
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
# Brain Scan Find the recurring tasks this person's agents actually perform, then measure whether relevant Skills improve the real outputs when explicitly loaded. ## Choose a mode - **Fast (default):** identify the highest-signal recurring task from the session history and run 3 valid controlled pairs. Use for a quick directional answer and first Skill recommendation. - **Deep:** cover at least 3 recurring task families and complete at least 10 valid controlled pairs in total. Use when the user asks for a comprehensive scan, a broader capability map, or stronger evidence before changing the agent setup. Ask which mode only when the user has not indicated depth and the extra Deep runtime or model usage would be material. Otherwise default to Fast. Invalid, contaminated, or timed-out pairs do not count toward either minimum. ## Default assessment Use exactly two arms: - `base`: the selected Skill is absent. - `loaded`: the same model, task, fixtures, tools, limits, and ordinary context, with the selected Skill's frozen `SKILL.md` content supplied before work begins. Do not add a discovery arm. Do not replace this comparison with current setup versus an …
Read the whole file at its exact version.
How to install
mdr add getedgehq/skills/brain-scan@sha256:f1d88202c42a21beThe line at the top of this page pins the label git:20260921.4b868a5, 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_pt5smdn42oj6latr)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Sep 20, 2026 and Sep 21, 2026, more than one a day.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260921.4b868a5 latest | 2026-09-21 | 4b868a5 | 5,736 B | A | view · diff |
| git:20260921.8587e96 | 2026-09-21 | 8587e96 | 5,298 B | A | view · diff |
| git:20260920.860f3dd | 2026-09-20 | 860f3dd | 4,013 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 (5736 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
getedgehq/skills · 5 stars · license Apache-2.0 · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_pt5smdn42oj6latr GET https://markdownregistry.com/api/v1/resolve?ref=getedgehq/skills/brain-scan GET https://markdownregistry.com/api/v1/blob/f1d88202c42a21be11d41441527eae3bef860872ba8eaf9a769a0943b40d4f65
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.