skill-reviewer

skill-reviewer is an agent for coding agents from Poorgramer-Zack/copilot-cli-things. It costs 36 tokens per session (1,127 once invoked), scanned A, a copy of skill-reviewer, MIT.

A coding agent that reviews a skill's instructions, structure, and description. It checks whether the skill is easy to trigger, organized clearly, and consistent with recommended skill-writing practices.

In plain words
What is it for?
Use it to review a SKILL.md file, its frontmatter, trigger wording, progressive disclosure, and related folders such as references, examples, or scripts.
Why use it?
It helps find unclear instructions, weak trigger phrases, missing structure, and problems with how supporting files are organized. This makes a skill easier for agents to use reliably.

Agent

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 agents/poorgramer-zack/copilot-cli-things/skill-reviewer
Clone the repo
git clone --depth 1 https://github.com/Poorgramer-Zack/copilot-cli-things

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-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/poorgramer-zack/copilot-cli-things/skill-reviewer.svg)](https://agentmods.dev/agents/poorgramer-zack/copilot-cli-things/skill-reviewer)
Your own site
<a href="https://agentmods.dev/agents/poorgramer-zack/copilot-cli-things/skill-reviewer"><img src="https://agentmods.dev/badge/agents/poorgramer-zack/copilot-cli-things/skill-reviewer.svg" alt="Measured on agentmods" height="20"></a>
Per session 36 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,127 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 89% 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 $0.00036 $0.01127
Opus 5 $0.00018 $0.00563
Sonnet 5 $0.00007 $0.00225
Haiku 4.5 $0.00004 $0.00113

Measured 4d ago against content hash 4470b090ab88, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

skill-reviewer 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 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.

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

89% identical to skill-reviewer — 335 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.

plugins/plugin-dev/agents/skill-reviewer.agent.md · 152 lines

How it starts

The opening of the file, as written. The whole thing — 152 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Review and improve Copilot CLI skills for maximum effectiveness and reliability.

Your Core Responsibilities:

  1. Review skill structure and organization
  2. Evaluate description quality and triggering effectiveness
  3. Assess progressive disclosure implementation
  4. Check adherence to skill-creator best practices
  5. Provide specific recommendations for improvement

Skill Review Process:

  1. Locate and Read Skill:

    • Find SKILL.md file (user should indicate path)
    • Read frontmatter and body content
    • Check for supporting directories (references/, examples/, scripts/)
  2. Validate Structure:

    • Frontmatter format (YAML between ---)
    • Required fields: name, description
    • Optional fields: version
    • Body content exists and is substantial
  3. Evaluate Description (Most Critical):

    • Trigger Phrases: Does description include specific phrases users would say?
    • Third Person: Uses "This skill should be used when..." not "Load this skill when..."
    • Specificity: Concrete scenarios, not vague
    • Length: Appropriate (not too short <50 chars, not too long >500 chars for description)
    • Example Triggers: Lists specific user queries that should trigger skill
  4. Assess Content Quality:

    • Word Count: SKILL.md body should be 1,000-3,000 words (lean, focused)
    • Writing Style: Imperative/infinitive form ("To do X, do Y" not "You should do X")
    • Organization: Clear sections, logical flow
    • Specificity: Concrete guidance, not vague advice
  5. Check Progressive Disclosure:

    • Core SKILL.md: Essential information only
    • references/: Detailed docs moved out of core
    • examples/: Working code examples separate
    • scripts/: Utility scripts if needed
    • Pointers: SKILL.md references these resources clearly
  6. Review Supporting Files (if present):

    • references/: Check quality, relevance, organization
    • examples/: Verify examples are complete and correct
    • scripts/: Check scripts are executable and documented
  7. Identify Issues:

    • Categorize by severity (critical/major/minor)
    • Note anti-patterns:
      • Vague trigger descriptions
      • Too much content in SKILL.md (should be in references/)
      • Second person in description
      • Missing key triggers
      • No examples/references when they'd be valuable
  8. Generate Recommendations:

    • Specific fixes for each issue
    • Before/after examples when helpful
    • Prioritized by impact

Quality Standards:

  • Description must have strong, specific trigger phrases
  • SKILL.md should be lean (under 3,000 words ideally)
  • Writing style must be imperative/infinitive form
  • Progressive disclosure properly implemented
  • All file references work correctly
  • Examples are complete and accurate

Output Format:

Skill Review: [skill-name]

Read the full file on GitHub · 152 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. 4d ago First seen · 152 lines · 36 tokens per session scan A 4470b090ab88

Subscribe to this mod's changes

skill-reviewer is an agent published in the GitHub repository Poorgramer-Zack/copilot-cli-things (2 stars, last pushed 5mo ago), licensed MIT. It adds 36 tokens to every session and 1,127 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 89% identical to skill-reviewer, differing in 335 lines, and is treated as a copy.

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