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 skills add cowwoc/cat --skill stakeholder-reviewgit clone --depth 1 https://github.com/cowwoc/catWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/cowwoc/cat/stakeholder-review)<a href="https://agentmods.dev/skills/cowwoc/cat/stakeholder-review"><img src="https://agentmods.dev/badge/skills/cowwoc/cat/stakeholder-review/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/cowwoc/cat/stakeholder-review"><img src="https://agentmods.dev/badge/skills/cowwoc/cat/stakeholder-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What 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 5.1 | $0.00024 | $0.04481 |
| Opus 5 | $0.00012 | $0.02240 |
| Sonnet 5 | $0.00005 | $0.00896 |
| Haiku 4.5 | $0.00002 | $0.00448 |
Grade A, and why
cat:stakeholder-review scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Reads agent configuration directorieslowAgent snooping
.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.
TASK_PLAN=$(cat .claude/cat/tasks/*/PLAN.md 2>/dev/null || echo "") Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.
The source is not reproduced here
A licence we could not identify
The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.
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.
- 11d ago First seen · 570 lines · 24 tokens per session scan A 7ebcb61abbdc
cat:stakeholder-review is a skill published in the GitHub repository cowwoc/cat (101 stars, last pushed 1mo ago), with no licence file. It adds 24 tokens to every session and 4,481 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
gsd-code-review
Review source files changed during a phase for bugs, security issues, and code quality problems.
gsd-review
Request cross-AI peer review of phase plans from external AI CLIs.
gsd-ns-review
Route to the appropriate quality / review skill based on the user's intent. gsd-code-review-fix was absorbed by gsd-code-review --fix in #2790.
gsd-pr-branch
Create a clean PR branch by filtering out .planning/ commits — ready for code review.
best-practices
Apply modern web development best practices for security, compatibility, and code quality. Use when asked to "apply best practices", "security audit", "modernize code", "code quality review", or "check for vulnerabilities".
review
Review code changes for security, performance, bugs, and quality. Reviews staged changes, unstaged changes, specific commits, or PR-ready diffs.