critic

critic is a skill for Claude Code from ao92265/claude-code-playbook. It costs 81 tokens per session (567 once invoked), scanned A, original, MIT.

A one-time review workflow that challenges a development plan by looking for scope problems, missing tests, unsupported assumptions, and other risks.

In plain words
What is it for?
Use it to review implementation plans, proposals, or detailed task descriptions before coding starts.
Why use it?
It can reveal weaknesses before work begins, such as fixing a symptom instead of the cause or relying on files, APIs, or behavior that have not been verified.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: reads .claude/ paths; names the ExitPlanMode tool.

Part of the playbook plugin — 48 skills, 4 hooks shipped together

Good fit Use it to review implementation plans, proposals, or detailed task descriptions before…

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/ao92265/claude-code-playbook/critic
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.

Any agent
npx skills add ao92265/claude-code-playbook --skill critic
Clone the repo
git clone --depth 1 https://github.com/ao92265/claude-code-playbook

Made for: Claude Code.

Or install playbook, the plugin that ships this one along with the rest of its 48 skills, 4 hooks.

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 critic

README.md
[![agentmods](https://agentmods.dev/badge/skills/ao92265/claude-code-playbook/critic.svg)](https://agentmods.dev/skills/ao92265/claude-code-playbook/critic)
Your own site
<a href="https://agentmods.dev/skills/ao92265/claude-code-playbook/critic"><img src="https://agentmods.dev/badge/skills/ao92265/claude-code-playbook/critic.svg" alt="Measured on agentmods" height="20"></a>
Per session 81 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 567 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found 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 $0.00081 $0.00567
Opus 5 $0.00041 $0.00283
Sonnet 5 $0.00016 $0.00113
Haiku 4.5 $0.00008 $0.00057

Measured 7d ago against content hash 83d1ad4ae425, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

critic 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 7d 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.

skills/critic/SKILL.md · 61 lines

What it actually says

/critic — Plan Review Wrapper

Adversarial second-opinion pass on a plan or proposal before execution begins.

When to invoke

  • Plan file written, before ExitPlanMode approval
  • Long autopilot/ralph prompt drafted, before launch
  • User asks "is this plan any good"
  • After a deep-interview produced a spec, before implementation

When NOT to invoke

  • Trivial single-file changes
  • Bug fixes where the fix is mechanical
  • During implementation (use code-reviewer instead)

Workflow

  1. Identify target:

    • If active plan file exists at ~/.claude/plans/*.md (latest mtime) → use it
    • Else use the last assistant message in conversation
    • User can pass explicit path: /critic <path>
  2. Spawn oh-my-claudecode:critic agent (model=opus) with prompt:

    Review the attached plan. Find 3-10 specific issues across these axes:
    - Scope creep (does it sneak in unrelated changes?)
    - Symptom vs root cause (is it patching a symptom?)
    - Missing tests / verification gaps
    - Fabricated facts (file paths, function names, APIs that may not exist)
    - Unverified assumptions about codebase state, user intent, library behavior
    - Sequencing risks (steps that depend on prior unproven steps)
    
    Format each finding:
    - [SEVERITY: HIGH|MED|LOW] <one-line summary>
      - Location: <plan section or line>
      - Why it matters: <impact if not fixed>
      - Recommended fix: <concrete change>
    
    Max 10 findings. Return only the findings. No preamble, no summary.
    
  3. Surface findings verbatim to user. Do NOT auto-edit the plan.

Hard Rules

  • Critic agent is READ-ONLY. No file edits.
  • Findings include file:line where applicable.
  • Severity is honest, no padding to hit a count.
  • If plan is genuinely solid: return 0–2 findings + explicit "no major concerns" line. Don't manufacture issues.

Triggers

/critic, "review my plan", "plan critique", "adversarial review", "second opinion on plan"

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. 7d ago First seen · 61 lines · 81 tokens per session scan A 83d1ad4ae425

Subscribe to this mod's changes

critic is a skill published in the GitHub repository ao92265/claude-code-playbook (10 stars, last pushed 20d ago), licensed MIT. It adds 81 tokens to every session and 567 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.