skill-stocktake

skill-stocktake is a skill for Claude Code, Codex from cloud99277/KitClaw. It costs 39 tokens per session (1,840 once invoked), scanned A, a copy of skill-stocktake, MIT.

A quality review command for Claude skills and commands. It checks shared and project-specific skill libraries for overlap, outdated content, and possible improvements.

In plain words
What is it for?
Use it to scan recently changed skills or review the entire skill library with a checklist and an overall assessment.
Why use it?
It helps find skills that repeat each other, have become stale, or no longer meet the library’s quality standards.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/cloud99277/kitclaw/skill-stocktake
Any agent
npx skills add cloud99277/KitClaw --skill skill-stocktake
Clone the repo
git clone --depth 1 https://github.com/cloud99277/KitClaw

Made for: Claude Code, Codex.

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-stocktake

README.md
[![agentmods](https://agentmods.dev/badge/skills/cloud99277/kitclaw/skill-stocktake.svg)](https://agentmods.dev/skills/cloud99277/kitclaw/skill-stocktake)
Your own site
<a href="https://agentmods.dev/skills/cloud99277/kitclaw/skill-stocktake"><img src="https://agentmods.dev/badge/skills/cloud99277/kitclaw/skill-stocktake.svg" alt="Measured on agentmods" height="20"></a>
Per session 39 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,840 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
Origin 97% copy Near-identical to another mod 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 $0.00039 $0.01840
Opus 5 $0.00019 $0.00920
Sonnet 5 $0.00008 $0.00368
Haiku 4.5 $0.00004 $0.00184

Measured 4d ago against content hash d49d82282c8a, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

skill-stocktake 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 4d 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.

Enumerates other installed skillslowAgent snooping

Other skills' SKILL.md files reveal prompts, capabilities and secrets that should be invisible to peers.

(Project dir is auto-detected from `$PWD/.claude/skills`; pass it explicitly only if needed)

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

Origin

This is a copy

97% identical to skill-stocktake — 32 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

core-skills/skill-stocktake/SKILL.md · 177 lines

How it starts

The opening of the file, as written. The whole thing — 177 lines — stays where its author put it; the contents beside it link to each section on GitHub.

skill-stocktake

Slash command (/skill-stocktake) that audits all Claude skills and commands using a quality checklist + AI holistic judgment. Supports two modes: Quick Scan for recently changed skills, and Full Stocktake for a complete review.

Scope

The command targets the following paths relative to the directory where it is invoked:

Path Description
~/.claude/skills/ Global skills (all projects)
{cwd}/.claude/skills/ Project-level skills (if the directory exists)

At the start of Phase 1, the command explicitly lists which paths were found and scanned.

Targeting a specific project

To include project-level skills, run from that project's root directory:

cd ~/path/to/my-project
/skill-stocktake

If the project has no .claude/skills/ directory, only global skills and commands are evaluated.

Modes

Mode Trigger Duration
Quick Scan results.json exists (default) 5–10 min
Full Stocktake results.json absent, or /skill-stocktake full 20–30 min

Results cache: ~/.claude/skills/skill-stocktake/results.json

Quick Scan Flow

Re-evaluate only skills that have changed since the last run (5–10 min).

  1. Read ~/.claude/skills/skill-stocktake/results.json
  2. Run: bash ~/.claude/skills/skill-stocktake/scripts/quick-diff.sh \ ~/.claude/skills/skill-stocktake/results.json (Project dir is auto-detected from $PWD/.claude/skills; pass it explicitly only if needed)
  3. If output is []: report "No changes since last run." and stop
  4. Re-evaluate only those changed files using the same Phase 2 criteria
  5. Carry forward unchanged skills from previous results
  6. Output only the diff
  7. Run: bash ~/.claude/skills/skill-stocktake/scripts/save-results.sh \ ~/.claude/skills/skill-stocktake/results.json <<< "$EVAL_RESULTS"

Full Stocktake Flow

Phase 1 — Inventory

Run: bash ~/.claude/skills/skill-stocktake/scripts/scan.sh

Read the full file on GitHub · 177 lines

Files

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.

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. 4d ago First seen · 177 lines · 39 tokens per session scan A d49d82282c8a

Subscribe to this mod's changes

skill-stocktake is a skill published in the GitHub repository cloud99277/KitClaw (5 stars, last pushed 4mo ago), licensed MIT. It adds 39 tokens to every session and 1,840 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (enumerates other installed skills). It is 97% identical to skill-stocktake, differing in 32 lines, and is treated as a copy.

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