_selftest SKILL.md skillC
_selftest 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/_selftest@git:20261017.31c57dePins git:20261017.31c57de in mdr.lock. Pin the fingerprint instead.
- Audit grade
- C, 13 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- coco-research/coco
- Path
evals/skills/_selftest/SKILL.md- Versions recorded
- 1
- Latest version
- git:20261017.31c57de, committed Oct 17, 2026
- Size
- 46 bytes
- Repository stars
- 827
- License
- a license file GitHub does not identify
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
# Toy skill Repeat the user message verbatim.
Read the whole file at its exact version.
How to install
mdr add coco-research/coco/_selftest@sha256:d7fdaf00e0af5257The line at the top of this page pins the label git:20261017.31c57de, 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_7vdysqw7iwivfiy7)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Oct 17, 2026.
Audit of the latest version
- fail: Frontmatter block present
- fail: Frontmatter declares a name
- fail: Frontmatter declares a description
- fail: Size between 200 bytes and 200 KB (46 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
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 · 827 stars · license a license file GitHub does not identify · pushed 2026-10-20 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_7vdysqw7iwivfiy7 GET https://markdownregistry.com/api/v1/resolve?ref=coco-research/coco/_selftest GET https://markdownregistry.com/api/v1/blob/d7fdaf00e0af5257be148d50fd0899f5956c91ca7193c74295019507dfee0a59
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.