ClaudSkills / General / agents-skills-meta

Plan Critic

Q: What is a Claude Code skill and how does the Plan Critic skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Plan Critic is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: General · Sub-category: agents-skills-meta · Last updated: 2026-05-21

type:review

Critique a Claude implementation plan before approving execution. Spawns parallel persona subagents (Skeptic, Architect, Verifier) to evaluate the plan against the codebase and return an Approve/Reject/Refine verdict with concrete refinements. Use when a plan has been generated (Plan Mode output, ExitPlanMode, pasted plan text, or plan file path) and needs review before code is written. Triggers on "critique this plan", "review this plan", "is this plan good", "poke holes in this plan", "should I approve this plan", or sharing a plan for evaluation.

Security AStatic scan found no risk patternsHow grading works ›

About this skill (catalog notes)

Plan Critic includes explicit scope boundaries (an explicit 'when not to use' or 'out of scope' section); pricing or quota commentary; at least one code block. At roughly 1,961 words the SKILL.md is on the longer end of the catalog distribution.

Original author: smykla-skalski
Indexed lastmod: 2026-05-21
Catalog position: General · agents-skills-meta
Indexed related skills: 10

How Plan Critic fits the catalog

Plan Critic sits in the General category under the agents-skills-meta sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.

These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.

From the source SKILL.md

Critique a Claude implementation plan before any code is written. The cost of revising a plan is near-zero; the cost of revising executed code is hours of rework. This skill applies the plan-then-execute discipline rigorously: nothing gets approved until three independent personas have inspected it.

What this skill does

Plan Critic is a community-contributed Claude Code skill in the agents-skills-meta sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/plan-critic/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when a plan has been generated (Plan Mode output, ExitPlanMode, pasted plan text, or plan file path) and needs review before code is written. Triggers on "critique this plan", "review this plan", "is this plan good", "poke holes in this plan", "should I approve this plan", or sharing a plan for evaluation.

Who uses this skill

The Plan Critic Claude Code skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 115,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/plan-critic
curl -L https://claudskills.com/skills/plan-critic/SKILL.md \
  -o ~/.claude/skills/plan-critic/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/plan-critic/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/plan-critic/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\plan-critic\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Plan Critic Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/plan-critic/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Plan Critic skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the Plan Critic skill?

Use Plan Critic when your Claude Code task falls under the General category — specifically in the agents skills meta area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Plan Critic" or describe the task and let Claude pick). Browse related skills at /category/general/.

What is a Claude Code skill and how does the Plan Critic skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Plan Critic is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/smykla-skalski/sai/blob/HEAD/claude/plan-critic/skills/plan-critic/SKILL.md
Author: smykla-skalski

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

smykla-skalski. (2026). Plan Critic [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/plan-critic/

BibTeX

@misc{plan-critic-2026,
  author    = {smykla-skalski},
  title     = {Plan Critic [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/plan-critic/}
}

Embed this skill

Promote, attribute, or link this skill from your own README, blog post, or documentation. All three snippets are free to use — no sign-up, no API key. More distribution surfaces →

Badge

[![ClaudSkills](https://claudskills.com/badge/plan-critic.svg)](https://claudskills.com/skills/plan-critic/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)

Security scan

Grade A · scanned 2026-06-13 — free static scan against the OWASP Agentic Skills Top 10.

No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›

✓ Prompt injection
✓ Data exfiltration
✓ Supply chain
✓ Reverse shell
✓ Credentials
✓ Execution
✓ Filesystem
✓ Persistence
✓ Obfuscation
✓ Network

Show this grade on your repo (click to copy):

[![Security: A](https://img.shields.io/badge/Security-A-2e7d32)](https://claudskills.com/skills/plan-critic/#security)

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Browse all General skills → Top 100 skills

Part of ClaudSkills — the open registry for Claude Skills & Claude Code Skills. · What's New · Install guide · About · llms.txt

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