What is skill-monitor?

A management tool for installed Claude Code skills, which are reusable instructions that extend an AI coding assistant. It checks their security, cost, conflicts, usage, versions, and capability groupings.

Use it to audit skill health, scan for security issues, review token costs and usage, compare versions, detect conflicts, or disable and quarantine skills.

It helps maintain a clear and safer collection of skills and makes possible conflicts, changes, and resource costs visible.

skill-monitor — Skill for Claude Code by Luxuzhou

Install

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.

Any agent

npx skills add Luxuzhou/skill-monitor-plugin --skill skill-monitor

Clone the repo

git clone --depth 1 https://github.com/Luxuzhou/skill-monitor-plugin

Made for: Claude Code.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/luxuzhou/skill-monitor-plugin/skill-monitor/github.svg)](https://agentmods.dev/skills/luxuzhou/skill-monitor-plugin/skill-monitor)

Your own site

<a href="https://agentmods.dev/skills/luxuzhou/skill-monitor-plugin/skill-monitor"><img src="https://agentmods.dev/badge/skills/luxuzhou/skill-monitor-plugin/skill-monitor/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/luxuzhou/skill-monitor-plugin/skill-monitor"><img src="https://agentmods.dev/badge/skills/luxuzhou/skill-monitor-plugin/skill-monitor.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 153 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,337 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

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	$0.00153	$0.02337
Opus 5	$0.00077	$0.01169
Sonnet 5	$0.00031	$0.00467
Haiku 4.5	$0.00015	$0.00234

Measured 12d ago against content hash 2fee35d7a8d8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

skill-monitor 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 12d ago.

The scan reads SKILL.md. This mod also ships 6 executable files (scripts/dashboard.sh, scripts/gate-check.sh, scripts/scanner.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Install hooks into `~/.claude/settings.json`:

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

skills/skill-monitor/SKILL.md · 204 lines

How it starts

The opening of the file, as written. The whole thing — 204 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill Monitor — 技能健康管理系统

You are a Skill Health Manager. Your primary job is to run scripts and show results.

Core Principle: Scripts First, Not Reports

All read-only operations are handled by dashboard.sh. Run the script, let the user see the visual output directly. Do NOT reformat, summarize, or rewrite the output as a text report. The terminal visualization IS the output.

Command Routing

For ALL read-only commands, just run the corresponding dashboard mode:

/skill-monitor           → bash ~/.claude/skills/skill-monitor/scripts/dashboard.sh overview
/skill-monitor security  → bash ~/.claude/skills/skill-monitor/scripts/dashboard.sh security
/skill-monitor cost      → bash ~/.claude/skills/skill-monitor/scripts/dashboard.sh cost
/skill-monitor hooks     → bash ~/.claude/skills/skill-monitor/scripts/dashboard.sh hooks
/skill-monitor budget    → bash ~/.claude/skills/skill-monitor/scripts/dashboard.sh budget
/skill-monitor usage     → bash ~/.claude/skills/skill-monitor/scripts/dashboard.sh usage
/skill-monitor versions  → bash ~/.claude/skills/skill-monitor/scripts/dashboard.sh versions
/skill-monitor diff      → bash ~/.claude/skills/skill-monitor/scripts/dashboard.sh diff
/skill-monitor full      → bash ~/.claude/skills/skill-monitor/scripts/dashboard.sh full

After running the script, add a one-line comment if something stands out (e.g., "slidev 插件 20 天没更新了，可以考虑检查"). Do not repeat what the dashboard already shows.

Management Commands (these DO need Claude)

Only these commands require your involvement:

disable

Confirm with AskUserQuestion: "确认禁用 ''？"
mv ~/.claude/skills/<name>/SKILL.md ~/.claude/skills/<name>/SKILL.md.disabled
Log: echo '{"action":"disable","skill":"<name>","ts":"'$(date -u +%Y-%m-%dT%H:%M:%SZ)'"}' >> ~/.claude/skill-monitor/audit-log.jsonl
Run snapshot: bash ~/.claude/skills/skill-monitor/scripts/snapshot.sh save
Reply: "已禁用。下次对话生效。"

quarantine

Confirm with AskUserQuestion: "确认隔离 ''？"
mkdir -p ~/.claude/skill-monitor/quarantine && mv ~/.claude/skills/<name> ~/.claude/skill-monitor/quarantine/<name>
Log to audit-log.jsonl
Run snapshot
Reply: "已隔离。"

Read the full file on GitHub · 204 lines

Files

What ships with it

9 files 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.

Changes

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.

12d ago First seen · 204 lines · 153 tokens per session scan A 2fee35d7a8d8

Subscribe to this mod's changes

skill-monitor is a skill published in the GitHub repository Luxuzhou/skill-monitor-plugin (11 stars, last pushed 5mo ago), licensed MIT. It adds 153 tokens to every session and 2,337 once invoked, about $0.0008 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.

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skill-monitor