m0 SKILL.md skillB
m0 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/m0@git:20261007.272268bPins git:20261007.272268b in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- coco-research/coco
- Path
systems/m0/skills/m0/SKILL.md- Versions recorded
- 3
- Latest version
- git:20261007.272268b, committed Oct 7, 2026
- First version recorded
- Aug 2, 2026
- Size
- 3,035 bytes
- Repository stars
- 629
- License
- Apache-2.0
Use when the user says 'm0', 'm0 status', 'start m0', 'cross-tool memory', 'operational thread', or 'where is my memory stored', or when the M0 daemon or MCP wiring needs attention.
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
# /m0 — Cross-Tool Agent Memory
M0 keeps one local *operational thread* per project: what was done, what was
verified, what is next. Any tool can write to it and read it back, so a session
that starts cold can continue work another tool began.
The live M0 is the Rust daemon `coco-m0d`, serving `127.0.0.1:8000` under the
launchd job `com.coco.m0-backend`. The write path is `/m0-remember`, the read
path is `/m0-recall`, and the session handoff flow is `/m0-handoff`.
The token is read from ~/.coco/m0-token on each call; never print it.
## Quick Reference
```bash
M0="${COCO_M0_URL:-http://127.0.0.1:8000}" # daemon base URL
# Is it up? (health needs no token)
curl -s "$M0/api/health"
# Is the launchd job loaded?
launchctl list | grep com.coco.m0-backend
# Everything else needs the token, for example the recent thread:
curl -s -H "Authorization: Bearer $(cat ~/.coco/m0-token)" \
"$M0/api/brain/thread?project=my-project&limit=5"
```
There is no offline path: if the daemon is down, say so and stop; do not write anywhere else.
## Sub-commands
### /m0 status — is memory working
```bash
M0="${COCO_M0_URL:-http://127.0.0.1:8000}"
curl -s "$M0/api/health"
…Read the whole file at its exact version.
How to install
mdr add coco-research/coco/m0@sha256:4e30f71dea532b51The line at the top of this page pins the label git:20261007.272268b, 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_lgkr4pbb4bikekgc)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Aug 2, 2026 and Oct 7, 2026, about one every 33 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261007.272268b latest | 2026-10-07 | 272268b | 3,035 B | B | view · diff |
| git:20260914.e75f220 | 2026-09-14 | e75f220 | 7,558 B | B | view · diff |
| git:20260802.e33cfc9 | 2026-08-02 | e33cfc9 | 7,716 B | B | view |
Audit of the latest version
- fail: No link to a raw IP address (matched: http://127.0.0.1:8000)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (3035 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 script tag
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
coco-research/coco · 629 stars · license Apache-2.0 · pushed 2026-11-08 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_lgkr4pbb4bikekgc GET https://markdownregistry.com/api/v1/resolve?ref=coco-research/coco/m0 GET https://markdownregistry.com/api/v1/blob/4e30f71dea532b51029fe29ad46e0b52a0f3dd0512ad9de7b7ea8b0ecc7d725b
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.