Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/coco-research/coco/change-lognpx skills add coco-research/coco --skill change-loggit clone --depth 1 https://github.com/coco-research/cocoWhat it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00098 | $0.01125 |
| Opus 5 | $0.00049 | $0.00562 |
| Sonnet 5 | $0.00020 | $0.00225 |
| Haiku 4.5 | $0.00010 | $0.00112 |
Grade A, and why
pmstudio-changelog scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
The source is not reproduced here
No licence file
A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 3d ago First seen · 145 lines · 98 tokens per session scan A 4e4068cea531
pmstudio-changelog is a skill published in the GitHub repository coco-research/coco (217 stars, last pushed 2d ago), with no licence file. It adds 98 tokens to every session and 1,125 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
git-github-flow
Use for branch prep, clean commits, PR descriptions, GitHub issue triage, changelogs, release notes, review response, merge readiness, or publishing a branch safely.
bump
Bump version, update CHANGELOG.md and README.md, then tag and release on GitHub.
github
GitHub repository operations: PRs, issues, releases, branch protection, CODEOWNERS, Dependabot, and repo settings audits. Use when user says 'review my PR', 'create a release', 'cut a release', 'tag a release', 'set up branch protection', 'add CODEOWNERS', 'audit repo settings', 'is Dependabot configured', or asks…
release
Corta una nueva versión — mueve la sección Unreleased del CHANGELOG a una versión SemVer con fecha, crea el commit y el tag, y opcionalmente el release de GitHub. Úsalo cuando la persona pida publicar/cortar una versión o preparar un release (p. ej. "corta la versión 1.2.0", "prepara el release", "publica una nueva…
changelog
Actualiza CHANGELOG.md en el formato Keep a Changelog, añadiendo los cambios actuales bajo la sección Unreleased. Úsalo cuando la persona pida actualizar el changelog, añadir una entrada al changelog o registrar lo que cambió para las notas de la versión (p. ej. "añade esto al changelog", "actualiza el CHANGELOG con…
pr-describe
Draft a pull request description and a matching changelog entry from a branch's diff, in the target repo's own changelog format, without touching GitHub. Determines the PR's commit range (the current branch against its merge-base with the default branch), surveys what changed, then produces a structured PR body plus a…