skill-stocktake

skill-stocktake is a skill for Claude Code from jmstar85/oh-my-githubcopilot. It costs 60 tokens per session (1,074 once invoked), scanned A, a copy of skill-stocktake, MIT.

A quality and coverage audit for a project’s coding-agent skills. It checks whether skills exist, follow the required format, overlap, are incomplete, or are outdated.

In plain words
What is it for?
Use it to inventory skills, review skill quality, check coverage, or perform a periodic stocktake of skill directories and templates.
Why use it?
It reveals missing instructions, stale skills, naming or format problems, and duplicated coverage before more skills are added.

Skill for Claude Code

Written for Claude Code: argument-hint in frontmatter.

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/jmstar85/oh-my-githubcopilot/skill-stocktake
Any agent
npx skills add jmstar85/oh-my-githubcopilot --skill skill-stocktake
Clone the repo
git clone --depth 1 https://github.com/jmstar85/oh-my-githubcopilot

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-stocktake

README.md
[![agentmods](https://agentmods.dev/badge/skills/jmstar85/oh-my-githubcopilot/skill-stocktake.svg)](https://agentmods.dev/skills/jmstar85/oh-my-githubcopilot/skill-stocktake)
Your own site
<a href="https://agentmods.dev/skills/jmstar85/oh-my-githubcopilot/skill-stocktake"><img src="https://agentmods.dev/badge/skills/jmstar85/oh-my-githubcopilot/skill-stocktake.svg" alt="Measured on agentmods" height="20"></a>
Per session 60 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,074 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 100% 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 5.1 $0.00060 $0.01074
Opus 5 $0.00030 $0.00537
Sonnet 5 $0.00012 $0.00215
Haiku 4.5 $0.00006 $0.00107

Measured 6d ago against content hash 93c68d119cbf, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

skill-stocktake 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 6d 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.

Origin

This is a copy

100% identical to skill-stocktake — 0 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.

.github/skills/skill-stocktake/SKILL.md · 139 lines

How it starts

The opening of the file, as written. The whole thing — 139 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill Stocktake

Audit the .github/skills/ and vscode-omg/resources/templates/skills/ directories to produce a quality and coverage report.

When to Use

  • Before adding new skills (to avoid duplication)
  • After a large change batch (to verify templates are in sync)
  • Periodically to prune stale or incomplete skills

Audit Protocol

Step 1: Inventory

# List all skill directories
ls -1d .github/skills/*/

# Count total
ls -1d .github/skills/*/ | wc -l

# Check each has a SKILL.md
for dir in .github/skills/*/; do
  [ -f "${dir}SKILL.md" ] || echo "MISSING SKILL.md: $dir"
done

Step 2: Frontmatter Validation (v1.0.5+)

Each SKILL.md MUST have valid frontmatter:

---
name: skill-name           # required, kebab-case, matches directory name
description: >             # required, multi-line description with trigger keywords
  ...
argument-hint: "..."       # optional, describes argument
---

v1.0.5 breaking changes to check:

  • hint: field → ✅ argument-hint:
  • allowed-tools: field → ✅ remove (not supported)
  • Skill name autopilot → must be omg-autopilot (naming collision)

Validate with:

# Find skills using old 'hint:' field
grep -rn "^hint:" .github/skills/

# Find skills using unsupported 'allowed-tools:'
grep -rn "^allowed-tools:" .github/skills/

# Check for old 'autopilot' directory
ls .github/skills/ | grep "^autopilot$"

Step 3: Template Sync Check

# Skills in .github but not in templates
diff <(ls .github/skills/) <(ls vscode-omg/resources/templates/skills/)

# Skills in templates but not in .github (orphan templates)
diff <(ls vscode-omg/resources/templates/skills/) <(ls .github/skills/)

Step 4: Quality Checks

For each skill, check:

  • name: matches directory name exactly
  • description: includes trigger keywords ("Activate when: X, Y, Z")
  • Has a clear "When to Use" or "Steps" section
  • Has an "Output Format" or "See Also" section
  • No broken cross-references to renamed skills (/autopilot/omg-autopilot)
  • File is not empty stub (< 20 lines = likely incomplete)

Read the full file on GitHub · 139 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. 6d ago First seen · 139 lines · 60 tokens per session scan A 93c68d119cbf

Subscribe to this mod's changes

skill-stocktake is a skill published in the GitHub repository jmstar85/oh-my-githubcopilot (154 stars, last pushed 3mo ago), licensed MIT. It adds 60 tokens to every session and 1,074 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to skill-stocktake, differing in 0 lines, and is treated as a copy.

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