Borrowing it
Nothing to install: this file belongs to serbanghita/plan-critique-skills. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/serbanghita/plan-critique-skills/main/CLAUDE.mdgit clone --depth 1 https://github.com/serbanghita/plan-critique-skillsWrote 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.
[](https://agentmods.dev/instructions/serbanghita/plan-critique-skills/claude-md)<a href="https://agentmods.dev/instructions/serbanghita/plan-critique-skills/claude-md"><img src="https://agentmods.dev/badge/instructions/serbanghita/plan-critique-skills/claude-md/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/instructions/serbanghita/plan-critique-skills/claude-md"><img src="https://agentmods.dev/badge/instructions/serbanghita/plan-critique-skills/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.01225 | $0.01225 |
| Opus 5.5 | $0.00490 | $0.00490 |
| Sonnet 5.5 | $0.00245 | $0.00245 |
| Haiku 4.5 | $0.00122 | $0.00122 |
Grade B, and why
plan-critique-skills CLAUDE.md scanned grade B 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 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.
Reads agent configuration directoriesmediumAgent snooping
.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.
- Antigravity reads them from `.gemini/skills/` (registered via `.agents/skills.json` or `~/.gemini/config/skills.json`) How it starts
The opening of the file, as written. The whole thing — 80 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Project Standards
This project provides five planning skills for three agents.
- Claude Code reads them from
skills/ascreate,critique,cycle,executeandarchive. Installed as a plugin they are invoked as/plan:create,/plan:critique,/plan:cycle,/plan:executeand/plan:archive; installed manually they are invoked bare as/create,/critique, etc. - Antigravity reads them from
.gemini/skills/(registered via.agents/skills.jsonor~/.gemini/config/skills.json) asplan-create,plan-critique,plan-cycle,plan-executeandplan-archive. - GitHub Copilot CLI reads them from
.github/skills/asplan-create,plan-critique,plan-cycle,plan-executeandplan-archive, invoked as/plan-create,/plan-critique,/plan-cycle,/plan-executeand/plan-archive.
These skills help create, review, execute, and archive plans written by the user.
The cycle skill is a shortcut through create and critique: it drafts plan.md only when the user has not
written one, then critiques and merges up to cycleIterations times (default 3) and stops for approval. It
merges on its own only the changes that are obvious, and asks the user about anything ambiguous, anything that
touches what the user wrote, and anything that changes the scope of a chapter. It never executes the plan.
Architecture
Session tracking for parallel plans:
- Each session tracks its current plan via a file in
.planning/.sessions/. - Claude Code and Antigravity key the file by the process ID obtained via
echo $PPID, and clean up stale files opportunistically viakill -0 [PID]checks. - Copilot CLI keys the file by the
COPILOT_AGENT_SESSION_IDenvironment variable, and cleans up session files that have not been modified in the last 7 days. It never shells out to$PPIDorkill, because those do not work on Windows. - Skills read the session file to determine the current plan and show it as "(current session)" in selection.
- The
.sessions/directory is local state and should be gitignored.
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.
- 7d ago Changed · +20 tokens per session scan A → B 049886075cbd
- 1mo ago Changed · +7 lines · +157 tokens per session 730acb853791
- 1mo ago First seen · 73 lines · 1,048 tokens per session scan A 25cd42cbc711
plan-critique-skills CLAUDE.md is an instructions file published in the GitHub repository serbanghita/plan-critique-skills (13 stars, last pushed 7d ago), licensed MIT. It adds 1,225 tokens to every session, about $0.0049 per session on Opus 5.5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
deno copilot-instructions.md
Copilot instructions for denoland/deno, covering deno development guide for github copilot, network access, high level overview, key directories and key files to understand first.