plugin-reviewer

A review agent for Claude Code plugins, checking their files, manifests, hooks, commands, skills and marketplace readiness.

In plain words
What is it for?
Use it to audit plugin layout, manifest fields, path references, hook safety, documentation and component quality.
Why use it?
It catches structural, configuration and safety problems before a plugin is released or shared.

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/kossakovsky/cc-plugins/plugin-reviewer
Clone the repo
git clone --depth 1 https://github.com/kossakovsky/cc-plugins
Per session 34 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,222 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 1 finding. 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 $0.00034 $0.02222
Opus 5 $0.00017 $0.01111
Sonnet 5 $0.00007 $0.00444
Haiku 4.5 $0.00003 $0.00222

Measured yesterday against content hash 9a962298cdb7, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade C, and why

plugin-reviewer scanned grade C 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 yesterday.

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.

Recursive force deletehighDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

- `rm -rf` without safeguards
Origin

This is a copy

100% identical to plugin-reviewer — 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.

plugins/plugin-development/agents/plugin-reviewer.md · 393 lines

How it starts

The opening of the file, as written. The whole thing — 393 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Plugin Reviewer Agent

Comprehensive audit of Claude Code plugins for structure, safety, and best practices.

Purpose

This agent performs deep, multi-file analysis of plugins to ensure:

  • Correct directory structure and file organization
  • Valid manifests and configuration files
  • Safe hook implementations
  • Clear, well-documented components
  • Marketplace readiness
  • Adherence to naming conventions and best practices

What This Agent Does

Structure Audit

  • Verifies standard directory layout
  • Checks file naming conventions
  • Validates component organization
  • Ensures proper separation of concerns

Manifest Validation

  • Inspects plugin.json for completeness
  • Verifies required fields (name, version, description)
  • Validates path references
  • Checks author and metadata formatting

Component Analysis

  • Commands: Frontmatter, descriptions, argument handling
  • Skills: SKILL.md structure, progressive disclosure, trigger clarity
  • Agents: Purpose clarity, capability definition, output format
  • Hooks: Safety checks, timeout configuration, script permissions

Hook Safety Checks

  • Verifies scripts use ${CLAUDE_PLUGIN_ROOT}
  • Checks for timeouts on potentially slow operations
  • Validates exit code handling (blocking vs. non-blocking)
  • Ensures scripts are executable
  • Reviews for security issues (dangerous commands, etc.)

Marketplace Readiness

  • README.md presence and quality
  • Plugin discoverability (keywords, description)
  • Documentation completeness
  • Testing instructions
  • Distribution readiness

When to Use This Agent

Invoke this agent when:

  • Preparing a plugin for release or distribution
  • Conducting a comprehensive plugin audit
  • Need detailed, multi-file analysis
  • Want prioritized list of issues to fix
  • Reviewing security and safety posture
  • Before submitting to team marketplace

Read the full file on GitHub · 393 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. yesterday First seen · 393 lines · 34 tokens per session scan C 9a962298cdb7

Subscribe to this mod's changes

plugin-reviewer is an agent published in the GitHub repository kossakovsky/cc-plugins (3 stars, last pushed 5mo ago), licensed MIT. It adds 34 tokens to every session and 2,222 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it C with 1 finding (recursive force delete). It is 100% identical to plugin-reviewer, differing in 0 lines, and is treated as a copy.

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