AI Agent Skills is a curated library and package manager for installing, organizing, and creating skills for compatible AI coding agents. It is for developers who want to manage reusable agent instructions through a command-line or terminal interface. The catalogue skills and agents are examples of the kind of add-ons it helps manage.
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 MoizIbnYousaf/Ai-Agent-Skills --skill audit-library-healthgit clone --depth 1 https://github.com/MoizIbnYousaf/Ai-Agent-SkillsWrote 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/moizibnyousaf/ai-agent-skills/audit-library-health)<a href="https://agentmods.dev/skills/moizibnyousaf/ai-agent-skills/audit-library-health"><img src="https://agentmods.dev/badge/skills/moizibnyousaf/ai-agent-skills/audit-library-health/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/moizibnyousaf/ai-agent-skills/audit-library-health"><img src="https://agentmods.dev/badge/skills/moizibnyousaf/ai-agent-skills/audit-library-health.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 6 findings, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium MCP Rug Pull · line 26 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 34 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 40 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 46 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 52 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 58 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
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 | $0.00033 | $0.00498 |
| Opus 5.5 | $0.00013 | $0.00199 |
| Sonnet 5.5 | $0.00007 | $0.00100 |
| Haiku 4.5 | $0.00003 | $0.00050 |
Grade A, and why
audit-library-health 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 1mo 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.
What it actually says
Audit Library Health
Goal
Verify that a skills library is consistent, up-to-date, and ready to share or install from.
Guardrails
- Always use
--format jsonfor structured output when automating health checks. - Always use
--dry-runbefore runningbuild-docsto check if docs are already in sync. - Never push a library to a shared repo without passing
validateanddoctorfirst. - Use
--fieldsto limit output when inspecting large catalogs.
Workflow
- Run the validation script to check catalog integrity.
npx ai-agent-skills validate
This checks: required fields, folder consistency, frontmatter validity, collection integrity, and generated doc sync.
- Run doctor to check installed skills health.
npx ai-agent-skills doctor --format json
- Check for skills that may need updates.
npx ai-agent-skills check --format json
- Verify generated docs are in sync.
npx ai-agent-skills build-docs --dry-run --format json
If currentlyInSync is false, regenerate:
npx ai-agent-skills build-docs
- Review the curation queue for skills needing attention.
npx ai-agent-skills curate review --format json
Health Checklist
-
validatepasses with no errors -
doctorreports no broken installs -
build-docs --dry-runshows docs are in sync - No skills with empty
whyHerefields - All house skills have matching folders in
skills/ -
skills.jsontotal matches actual skill count
Gotchas
validateanddoctorare read-only — they never mutate the library.checkmakes network requests to verify upstream sources. It may be slow or timeout on unreachable repos.- The
curate reviewqueue is derived from missing fields and stale verification dates — it is a heuristic, not a mandate.
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.
- 1mo ago First seen · 75 lines · 33 tokens per session scan A 68a09738ebc5
audit-library-health is a skill published in the GitHub repository MoizIbnYousaf/Ai-Agent-Skills (1,152 stars, last pushed 1mo ago), licensed MIT. It adds 33 tokens to every session and 498 once invoked, about $0.0001 per session on Opus 5.5. 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.
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