planner-critic

planner-critic is an agent for Claude Code from garveyhu/awesome-skills. It costs 24 tokens per session (1,138 once invoked), scanned B, original, no licence file.

A read-only critic for plan.json, a JSON file describing planned work. It checks the file's structure, task size, and compliance with development lessons.

In plain words
What is it for?
Use it to review a plan before carrying it out.
Why use it?
It helps find invalid plans, tasks that are too large or small, and known planning mistakes before execution.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md).

Good fit Use it to review a plan before carrying it out.

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Install with agentmods
npx agentmods add agents/garveyhu/awesome-skills/planner-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.

Clone the repo
git clone --depth 1 https://github.com/garveyhu/awesome-skills

Made for: Claude Code.

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 planner-critic

README.md
[![agentmods](https://agentmods.dev/badge/agents/garveyhu/awesome-skills/planner-critic/github.svg)](https://agentmods.dev/agents/garveyhu/awesome-skills/planner-critic)
Your own site
<a href="https://agentmods.dev/agents/garveyhu/awesome-skills/planner-critic"><img src="https://agentmods.dev/badge/agents/garveyhu/awesome-skills/planner-critic/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.

agentmods 80×15 button for planner-critic

Your own site · 80×15
<a href="https://agentmods.dev/agents/garveyhu/awesome-skills/planner-critic"><img src="https://agentmods.dev/badge/agents/garveyhu/awesome-skills/planner-critic.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 24 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,138 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00024 $0.01138
Opus 5 $0.00012 $0.00569
Sonnet 5 $0.00005 $0.00228
Haiku 4.5 $0.00002 $0.00114

Measured 12d ago against content hash 4335cd171569, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade B, and why

planner-critic 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 12d 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.

1. Run `bash $(find ~/.agents/skills/src/mirror/self-improving-workflow/scripts -name plan_lint.sh) .claude/state/plan.json`. Any non-zero exit → **fail** with the lint output.
meta/self-improving-workflow/agents/planner-critic.md · 86 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 12d ago First seen · 86 lines · 24 tokens per session scan B 4335cd171569

Subscribe to this mod's changes

planner-critic is an agent published in the GitHub repository garveyhu/awesome-skills (11 stars, last pushed 18d ago), with no licence file. It adds 24 tokens to every session and 1,138 once invoked, about $0.0001 per session on Opus 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.

Related

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