skill-audit

skill-audit is a skill for Claude Code from MithunWijayasiri/dotclaude. It costs 45 tokens per session (1,091 once invoked), scanned A, original, MIT.

A report-first checker for an existing Claude Code skill. It reads the skill’s instructions and related files, checks them against an authoring rubric, and edits only findings that have been approved.

In plain words
What is it for?
Use it to review a skill folder or SKILL.md file, verify referenced files and commands, and inspect interactions with other skills. It is for improving existing skills, not creating new ones.
Why use it?
It helps find unclear triggers, stale references, duplicated behavior, and other maintenance problems before changing a skill. The report-first process avoids making unapproved edits.

Skill for Claude Code

Written for Claude Code: disable-model-invocation in frontmatter. Also seen: reads .claude/ paths; mentions CLAUDE.md; mentions subagents.

Good fit Use it to review a skill folder or SKILL.md file, verify referenced files and commands, and inspect interactions with other skills. It is for improving existing skills, not creating new ones.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/mithunwijayasiri/dotclaude/skill-audit
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 MithunWijayasiri/dotclaude --skill skill-audit
Clone the repo
git clone --depth 1 https://github.com/MithunWijayasiri/dotclaude

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.

agentmods badge for skill-audit

README.md
[![agentmods](https://agentmods.dev/badge/skills/mithunwijayasiri/dotclaude/skill-audit/github.svg)](https://agentmods.dev/skills/mithunwijayasiri/dotclaude/skill-audit)
Your own site
<a href="https://agentmods.dev/skills/mithunwijayasiri/dotclaude/skill-audit"><img src="https://agentmods.dev/badge/skills/mithunwijayasiri/dotclaude/skill-audit/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.

agentmods 80×15 button for skill-audit

Your own site · 80×15
<a href="https://agentmods.dev/skills/mithunwijayasiri/dotclaude/skill-audit"><img src="https://agentmods.dev/badge/skills/mithunwijayasiri/dotclaude/skill-audit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,091 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00045 $0.01091
Opus 5.5 $0.00018 $0.00436
Sonnet 5.5 $0.00009 $0.00218
Haiku 4.5 $0.00005 $0.00109

Measured 10d ago against content hash 7d52a21262c4, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

skill-audit 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 10d 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.

skills/skill-audit/SKILL.md · 75 lines

How it starts

The opening of the file, as written. The whole thing — 75 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill Audit

Report-first. Edit only approved findings.

Setup

  1. Load compact-markdown; read its skill-authoring.md reference — that is the rubric. Don't restate it in the report or here.
  2. Resolve targets:
    • Path to a folder → use it. Path to SKILL.md → its parent folder.
    • Name → <repo>/.claude/skills/<name>/, then ~/.claude/skills/<name>/. Both exist → ask which.
    • No args → list skills in both locations, ask which.

Read

Per target:

  • SKILL.md and every file under the skill folder (references/, scripts).
  • What it delegates to or cites: subagent defs (.claude/agents/, ~/.claude/agents/), sibling skills it routes to, rules and CLAUDE.md files it references.
  • Every other skill's name + description: both skill locations plus plugin skills in the session's skill listing. Feeds the collision check.

Checks

Rubric from skill-authoring.md: description shape, triggering, ladder, failure modes (premature completion, duplication, sediment, sprawl, no-op). Rationale lines are content — don't flag as filler.

Audit-only additions:

  • Stale refs — every cited path, file, agent, skill, command, script, and folder exists. Verify with Glob/Grep, never from memory. Missing → finding; unclear replacement → ask, don't guess.
  • Frontmatter conflict — disable-model-invocation: true alongside auto-trigger prose ("when the user asks…", "do NOT trigger for…").
  • Instruction conflict — contradicts global/project CLAUDE.md or a rule (e.g. routes to a skill/agent CLAUDE.md doesn't sanction, auto-runs checks CLAUDE.md forbids).
  • Cross-file duplication — restates its subagent's contract, CLAUDE.md, or a rule → pointer or cut.
  • Collision — triggers overlap another skill or a built-in slash command, with no Not for → <sibling> clause on either side. Manual-only → name collision only.
  • Approval gate — step that deletes, pushes, writes externally (Jira, PR, message), or overwrites, with no ask-first step before it.
  • Scope fit — body does more than the description promises, or allowed-tools doesn't match the tools the steps use.
  • Failure path — step that can fail (tool missing, command errors, ref not found) with no stated next action. Silent continue = finding.
  • Description — see below.

Read the full file on GitHub · 75 lines

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.

  1. 10d ago Changed · -11 tokens per session 7d52a21262c4
  2. 11d ago Changed · +2 lines eb34dd3d2d03
  3. 15d ago First seen · 73 lines · 56 tokens per session scan A 0b9c69973842

Subscribe to this mod's changes

skill-audit is a skill published in the GitHub repository MithunWijayasiri/dotclaude (4 stars, last pushed 6d ago), licensed MIT. It adds 45 tokens to every session and 1,091 once invoked, about $0.0002 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 2026-10-06.

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