plan-critique-skills: Skill for Claude Code

.gemini/skills/plan-create/SKILL.md

plan-create is a skill for Claude Code, Gemini CLI from serbanghita/plan-critique-skills. It costs 13 tokens per session (1,004 once invoked), scanned A, original, MIT.

A skill that creates a new folder containing a plan.md planning template. It requires checking the project's working agreement and documenting affected files and verification steps.

In plain words
What is it for?
Use it to start a project plan, record the files that may change, and define how the completed work will be checked.
Why use it?
It gives planning work a fixed structure and prevents implementation code from being changed during the planning phase.

Skill for Claude CodeGemini CLI

Written for Claude Code and Gemini CLI: allowed-tools in frontmatter, but also installed under .gemini/. Also seen: names the AskUserQuestion tool; mentions Claude Code.

This is serbanghita/plan-critique-skills's own configuration. It tells Claude Code and Gemini CLI how to work on plan-critique-skills itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything plan-critique-skills configures →

Part of the plan plugin — 10 skills shipped together

Reuse

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.

Copy the file
curl -O https://raw.githubusercontent.com/serbanghita/plan-critique-skills/main/.gemini/skills/plan-create/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/serbanghita/plan-critique-skills

Made for: Claude Code, Gemini CLI.

Or install plan, the plugin that ships this one along with the rest of its 10 skills.

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 plan-create

README.md
[![agentmods](https://agentmods.dev/badge/skills/serbanghita/plan-critique-skills/plan-create/github.svg)](https://agentmods.dev/skills/serbanghita/plan-critique-skills/plan-create)
Your own site
<a href="https://agentmods.dev/skills/serbanghita/plan-critique-skills/plan-create"><img src="https://agentmods.dev/badge/skills/serbanghita/plan-critique-skills/plan-create/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 plan-create

Your own site · 80×15
<a href="https://agentmods.dev/skills/serbanghita/plan-critique-skills/plan-create"><img src="https://agentmods.dev/badge/skills/serbanghita/plan-critique-skills/plan-create.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 13 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,004 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 $0.00013 $0.01004
Opus 5 $0.00006 $0.00502
Sonnet 5 $0.00003 $0.00201
Haiku 4.5 $0.00001 $0.00100

Measured 3d ago against content hash 4b732820f880, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

plan-create 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 3d 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

  • create — 98% identical, 19 lines differ
.gemini/skills/plan-create/SKILL.md · 78 lines

What it actually says

You are creating a new plan folder for the user.

Fixed rules:

Read the working agreement at working-agreement.md before step 1 and follow it for the whole run. If that path does not resolve, look for working-agreement.md in the project root, then in .gemini/. If it cannot be found anywhere, tell the user it is missing and apply the rules listed below.

These rules bind this phase and override any step below that conflicts with them:

  1. Ask clarifying questions up front when the request is ambiguous. Do not guess the plan name, the plans folder, or what the user means. Guessing here produces the wrong plan.
  2. Do not write, edit, or refactor any project code during this phase. This phase produces a plan folder and a plan.md and nothing else.
  3. The plan is not finished until it lists its affected files and how success will be verified. The template carries both sections, so do not remove them when filling it in.
  4. Be brief. No filler, no preamble, no restating the request. No emojis, no em dashes, no decorative icons.

To do this, follow these steps precisely:

  1. Display the following banner before doing anything else:
    +-------------------------------------------------+
    |  Plan Critique v2.6.1 - Creating new plan       |
    +-------------------------------------------------+
    
  2. Read .gemini/plan-critique-config.json and get plansFolder path from settings. If that file does not exist, read .claude/plan-critique-config.json instead, so a project already using the Claude Code plugin keeps the same plans folder. If neither file exists or plansFolder is not set or is an empty string:
    • Ask the user: "Where would you like to store your plans? Provide a folder path (default .planning):". By default, the user should be presented with the option .planning.
    • Save the path as plansFolder in .gemini/plan-critique-config.json
    • Create the folder if it doesn't exist
    • Create an archived/ subfolder inside it
  3. Determine the plan name:
    • If a name was passed as an argument, the text in $ARGUMENTS is the plan name. Use it directly.
    • Otherwise, ask the user directly, do not offer predefined options like "New Feature" or "Bug Fix" because the plan name must be unique: "Enter a name for this plan:" The plan name must have at least 3 characters. If it is empty or shorter, respond with "Plan name must be at least 3 characters." and ask the user to enter one.
  4. Generate a slug from the plan name:
    • Convert to lowercase
    • Replace spaces with hyphens
    • Remove characters that are not alphanumeric or hyphens
    • Trim to max 50 characters
    • Example: "Add User Authentication" becomes add-user-authentication
  5. Check if [plansFolder]/[slug]/ already exists. If it does: Respond with "A plan with this name already exists at [plansFolder]/[slug]/. Choose a different name." Ask for a new name and repeat from step 4.
  6. Create directory [plansFolder]/[slug]/
  7. Link this session to the new plan:
    • Get the session process ID by running: echo $PPID
    • Create the sessions directory if needed: [plansFolder]/.sessions/
    • Write the slug to [plansFolder]/.sessions/[PID] (plain text, just the slug)
  8. Create the plan template at [plansFolder]/[slug]/plan.md using the template in plan-template.md.
  9. Respond with confirmation:
    Created new plan: [plansFolder]/[slug]/
    Edit your plan at: [plansFolder]/[slug]/plan.md
    When ready, run `/plan-critique` to review your plan.
    

Notes:

  • The slug must be filesystem-safe (no special characters)
  • Keep the original plan name with proper casing in the H1 heading of plan.md
  • Only create plan.md initially (critique.md is created by /plan:critique)
  • Always use plansFolder from settings as the base directory
Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 3d ago Changed 4b732820f880
  2. 11d ago First seen · 78 lines · 13 tokens per session scan A a33878c81358

Subscribe to this mod's changes

plan-create is a skill published in the GitHub repository serbanghita/plan-critique-skills (13 stars, last pushed 3d ago), licensed MIT. It adds 13 tokens to every session and 1,004 once invoked, about $0.0001 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 2026-08-30.

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