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 hoangsonww/Claude-Code-Agent-Monitor --skill skill-inventorygit clone --depth 1 https://github.com/hoangsonww/Claude-Code-Agent-MonitorWrote 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/hoangsonww/claude-code-agent-monitor/skill-inventory)<a href="https://agentmods.dev/skills/hoangsonww/claude-code-agent-monitor/skill-inventory"><img src="https://agentmods.dev/badge/skills/hoangsonww/claude-code-agent-monitor/skill-inventory/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/hoangsonww/claude-code-agent-monitor/skill-inventory"><img src="https://agentmods.dev/badge/skills/hoangsonww/claude-code-agent-monitor/skill-inventory.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00074 | $0.00704 |
| Opus 5 | $0.00037 | $0.00352 |
| Sonnet 5 | $0.00015 | $0.00141 |
| Haiku 4.5 | $0.00007 | $0.00070 |
Grade A, and why
skill-inventory 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 13d 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.
How it starts
The opening of the file, as written. The whole thing — 68 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Skill Inventory
Map every skill available to the user — both their own (user/project scope) and
the ones contributed by installed plugins — read through the Agent Monitor
dashboard at http://localhost:4820.
Input
The user provides: $ARGUMENTS
This may be:
- empty — inventory all skills (default).
- a skill name fragment — focus on skills whose
namematches. - a plugin name — show only the skills that plugin contributes.
Data Sources
| Endpoint | Returns |
|---|---|
GET /api/cc-config/skills |
{ items:[{ scope:"user"|"project", name, path, file, size, mtime, frontmatter, preview }] } — the user's own skill directories |
GET /api/cc-config/plugins |
{ manifestPath, manifestExists, plugins:[{ key, name, marketplace, scope, version, enabled, installPath, contributes:{ skills, agents, commands, outputStyles, hooks } }] } |
Report Sections
1. User & project skills
From /skills, list each skill with scope, name, size (KB), and
frontmatter.description (or the start of preview). Separate user-scope from
project-scope skills.
2. Plugin-contributed skills
From /plugins, list each plugin with enabled state and its
contributes.skills count. Note that /skills reports only the user's own
skill dirs — plugin skills are counted via contributes, so reconcile: total
available skills ≈ user skills + Σ enabled-plugin contributes.skills.
3. Overlap & duplication
Flag where a plugin name or a plugin's contributed-skill domain overlaps with a
user-authored skill of the same name or purpose (compare against
frontmatter.description from /skills). Recommend keeping one source of truth
— prefer the plugin version if it is maintained upstream, or the user version
if it is customized.
4. Disabled / orphaned plugins
Flag plugins with enabled: false (their skills are inert) and any whose
installPathExists is false (manifest references a missing install) — these are
dead weight to clean up via the Claude Code plugin manager.
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 13d ago First seen · 68 lines · 74 tokens per session scan A 0a0f6a5dd9d3
skill-inventory is a skill published in the GitHub repository hoangsonww/Claude-Code-Agent-Monitor (991 stars, last pushed 4d ago), licensed MIT. It adds 74 tokens to every session and 704 once invoked, about $0.0004 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.
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