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Agent skill

Skill Stats

by proffesor-for-testing in proffesor-for-testing/agentic-qe

A skill your agent uses when reviewing which QE skills are being used, finding undertriggering skills, or analyzing skill effectiveness.

MITAuto-check passed

Install Skill Stats

skills CLI
$ npx skills add proffesor-for-testing/agentic-qe --skill skill-stats -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install proffesor-for-testing/agentic-qe skill-stats --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/proffesor-for-testing/agentic-qe.git skills-src && mkdir -p .claude/skills && cp -r skills-src/assets/skills/skill-stats .claude/skills/skill-stats && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
skill-stats
GitHub stars
494
Token cost
~575 tokens
SKILL.md length
131 words
Files
1
Skills in repo
95
Repo updated
First seen
Licence
MIT

At a glance

A skill your agent uses when reviewing which QE skills are being used, finding undertriggering skills, or analyzing skill effectiveness.

  • Works in 5 steps: Most Used Skills — Top 10 skills by… → Undertriggering Skills — Skills with… → Never Used Skills — Skills that have… → …
  • Reviewing which QE skills are being used
  • SKILL.md covers Activation, What It Reports, Usage Log Format and Hook Configuration, plus 2 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Skill Stats is an agent skill from proffesor-for-testing/agentic-qe. Use when reviewing which QE skills are being used, finding undertriggering skills, or analyzing skill effectiveness. Shows usage patterns and recommendations.

Its SKILL.md is about 580 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

The repository describes itself as: Agentic QE Fleet is an open-source AI-powered QA/QE platform designed for use with Coding Agents (works best with Claude Code) featuring specialized agents and skills to support… The licence is MIT.

When your agent uses it

  • Reviewing which QE skills are being used
  • Finding undertriggering skills
  • Analyzing skill effectiveness

Example prompts

  • “/skill-stats”

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

  1. Most Used Skills — Top 10 skills by invocation count
  2. Undertriggering Skills — Skills with good descriptions but low usage
  3. Never Used Skills — Skills that have never been triggered
  4. Trigger Method — How skills are activated (explicit /command vs auto-selected)
  5. Recommendations — Skills to improve, merge, or deprecate

What it can do on your machine

Read from SKILL.md and the folder at commit 829d030. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are json and bash).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Skill Stats loads about 575 tokens when it runs. Until then it costs about 43 tokens; SKILL.md has 131 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~43
When it runs · the whole SKILL.md, loaded when a task matches
~575

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from proffesor-for-testing/agentic-qe at commit 829d030, republished under its MIT licence (© proffesor-for-testing). 131 words, ~575 tokens.

Download SKILL.mdSave it as .claude/skills/skill-stats/SKILL.md (or your agent's skills folder).
name
skill-stats
description
Use when reviewing which QE skills are being used, finding undertriggering skills, or analyzing skill effectiveness. Shows usage patterns and recommendations.
user-invocable
true

Skill Usage Statistics

View QE skill usage patterns to identify popular skills, undertriggering skills, and optimization opportunities.

Activation

/skill-stats

What It Reports

  1. Most Used Skills — Top 10 skills by invocation count
  2. Undertriggering Skills — Skills with good descriptions but low usage
  3. Never Used Skills — Skills that have never been triggered
  4. Trigger Method — How skills are activated (explicit /command vs auto-selected)
  5. Recommendations — Skills to improve, merge, or deprecate

Usage Log Format

Skill invocations are logged to ${CLAUDE_PLUGIN_DATA}/skill-usage.log:

2026-03-18T10:30:00Z|security-testing|explicit|/security-testing
2026-03-18T10:45:00Z|qe-test-generation|auto|model-selected
2026-03-18T11:00:00Z|mutation-testing|explicit|/mutation-testing

Hook Configuration

json
{
  "hooks": {
    "PreToolUse": [
      {
        "matcher": "Skill",
        "hook": ".claude/skills/skill-stats/scripts/log-usage.sh"
      }
    ]
  }
}

Analysis Script

bash
#!/bin/bash
# analyze-usage.sh
LOG="${CLAUDE_PLUGIN_DATA:-$HOME/.claude/plugin-data}/skill-usage.log"

if [ ! -f "$LOG" ]; then
  echo "No usage data yet. Skills will be logged as they are used."
  exit 0
fi

echo "=== Skill Usage Report ==="
echo ""
echo "Top 10 Most Used:"
cut -d'|' -f2 "$LOG" | sort | uniq -c | sort -rn | head -10
echo ""
echo "Trigger Method Breakdown:"
cut -d'|' -f3 "$LOG" | sort | uniq -c | sort -rn
echo ""
echo "Skills Used in Last 7 Days:"
WEEK_AGO=$(date -d '7 days ago' +%Y-%m-%dT%H:%M:%S 2>/dev/null || date -v-7d +%Y-%m-%dT%H:%M:%S)
awk -F'|' -v since="$WEEK_AGO" '$1 >= since' "$LOG" | cut -d'|' -f2 | sort | uniq -c | sort -rn

Gotchas

  • Log file grows unbounded — rotate periodically with tail -n 1000 $LOG > $LOG.tmp && mv $LOG.tmp $LOG
  • Auto-selected skills may not always be the best match — review undertriggering skills for description improvements
  • Usage count alone doesn't indicate quality — a skill used 100x but failing 50% needs fixing, not celebrating

© proffesor-for-testing, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in assets/skills/skill-stats of proffesor-for-testing/agentic-qe.

Open the folder on GitHubat commit 829d030

Compare with similar skills

Skill Stats next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Skill Stats compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Skill Stats this skillproffesor-for-testing/agentic-qe494—~575Automated safety check: PassMIT
Find Releaseflutter/flutter179k—~545Automated safety check: PassBSD-3-Clause
Fd Findpenpot/penpot61k—~882Automated safety check: PassMPL-2.0
Caveman StatsJuliusBrussee/caveman110k—~491Automated safety check: PassApache-2.0
Find Matching Tenderssickn33/agentic-awesome-skills47k1 repos~1kAutomated safety check: PassApache-2.0
Statsbrycewang-stanford/Auto-Empirical-Research-Skills4.5k—~2kAutomated safety check: PassCustom licence

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All 95 skills in this repo

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  • Code Review Quality

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  • Security Testing

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Questions about Skill Stats

What does Skill Stats do?

A skill your agent uses when reviewing which QE skills are being used, finding undertriggering skills, or analyzing skill effectiveness. Skill Stats is an agent skill from proffesor-for-testing/agentic-qe. Use when reviewing which QE skills are being used, finding undertriggering skills, or analyzing skill effectiveness.

When should I use Skill Stats?

Skill Stats fits situations like: reviewing which QE skills are being used; finding undertriggering skills; analyzing skill effectiveness.

How do I install Skill Stats in Claude Code?

Run `npx skills add proffesor-for-testing/agentic-qe --skill skill-stats -a claude-code`. Or copy the skill folder (assets/skills/skill-stats in proffesor-for-testing/agentic-qe) into .claude/skills/skill-stats in your project. Claude Code loads it when a task matches its description.

How do I install Skill Stats in Codex?

Run `npx skills add proffesor-for-testing/agentic-qe --skill skill-stats -a codex`. Or copy the skill folder (assets/skills/skill-stats in proffesor-for-testing/agentic-qe) into .agents/skills/skill-stats in your project. Codex loads it when a task matches its description.

Can I use Skill Stats in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add proffesor-for-testing/agentic-qe --skill skill-stats -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/skill-stats, .gemini/skills/skill-stats, .github/skills/skill-stats and .opencode/skills/skill-stats in your project.

What does Skill Stats need to run?

SKILL.md names no scripts, command-line tools or credentials: Skill Stats is instructions for the agent only.

Does Skill Stats access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Skill Stats safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Skill Stats use?

Skill Stats is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Skill Stats use?

About 575 tokens (SKILL.md is roughly 2.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Skill Stats?

Skills that share tags, products or a category with Skill Stats: Find Release (flutter/flutter, 179k stars), Fd Find (penpot/penpot, 61k stars), Caveman Stats (JuliusBrussee/caveman, 110k stars) and Find Matching Tenders (sickn33/agentic-awesome-skills, 47k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Skill Stats?

proffesor-for-testing (a GitHub user) maintains it in proffesor-for-testing/agentic-qe, which has 494 GitHub stars. The repository holds 95 skills in this directory. The repository was last updated on October 4, 2026.

Source: proffesor-for-testing/agentic-qe on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.