brain:update SKILL.md skillA
brain:update from coco-research/coco is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add coco-research/coco/brain:update@git:20260426.d53cc6cPins git:20260426.d53cc6c in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- coco-research/coco
- Path
systems/brain/skills/brain-update/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260426.d53cc6c, committed Apr 26, 2026
- Size
- 7,107 bytes
- Repository stars
- 797
- License
- a license file GitHub does not identify
End-of-session brain flush. Scans the full conversation, extracts all new entities, decisions, tasks, events, relationships, and updates, presents a summary, and writes to project_brain.db after confirmation. Use at end of every session or when you want to capture everything discussed.
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:update --- End-of-Session Brain Flush
**This is a forcing function.** When invoked, Claude MUST thoroughly review the entire conversation and write everything learned to the brain DB. No shortcuts, no skipping.
## Procedure
### Step 1: Detect brain DB
Look for `project_brain.db` in the current working directory or parent dirs. If not found, error: "No brain DB found. Run `/brain init` first."
### Step 2: Read current DB state (cross-session awareness)
**CRITICAL --- the user runs multiple terminal sessions in parallel.** Another session may have already written to the brain since this conversation started. Before extracting, read the current DB state:
```bash
python3 ~/.claude/skills/brain/scripts/brain/brain_cli.py context {slug}
```
For each project, note:
- **Existing entities** (names and types) --- so you don't propose adding what's already there
- **Existing decisions** (decision text) --- so you don't duplicate
- **Existing events** (title + date) --- so you don't duplicate
- **Current task statuses** --- so you don't regress a task that another session already advanced (e.g., don't set to "open" if another session set it to "done")
**Conflict rules:**
…Read the whole file at its exact version.
How to install
mdr add coco-research/coco/brain:update@sha256:de96c8d0c1b4cc1bThe line at the top of this page pins the label git:20260426.d53cc6c, 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_pr4ggzdc7fmdabjy)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Apr 26, 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 (7107 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
coco-research/coco · 797 stars · license a license file GitHub does not identify · pushed 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_pr4ggzdc7fmdabjy GET https://markdownregistry.com/api/v1/resolve?ref=coco-research/coco/brain:update GET https://markdownregistry.com/api/v1/blob/de96c8d0c1b4cc1b5c156725a349114a4cb08ee6d8eaacf79240387ed1ec3542
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.