plan-writing

plan-writing is a skill for Claude Code, Codex from ivanshtokov/copilot-kit. It costs 31 tokens per session (1,009 once invoked), scanned A, a copy of plan-writing, MIT.

A framework for breaking implementation work into short, ordered tasks with clear checks for completion. It is intended for feature work, refactoring, and other changes with several dependent steps.

In plain words
What is it for?
Use it to create a brief project-root plan with actionable tasks, expected results, and a final verification step.
Why use it?
It makes larger tasks easier to follow and verify by identifying dependencies and leaving verification until the end.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/ivanshtokov/copilot-kit/plan-writing
Any agent
npx skills add ivanshtokov/copilot-kit --skill plan-writing
Clone the repo
git clone --depth 1 https://github.com/ivanshtokov/copilot-kit

Made for: Claude Code, Codex.

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-writing

README.md
[![agentmods](https://agentmods.dev/badge/skills/ivanshtokov/copilot-kit/plan-writing.svg)](https://agentmods.dev/skills/ivanshtokov/copilot-kit/plan-writing)
Your own site
<a href="https://agentmods.dev/skills/ivanshtokov/copilot-kit/plan-writing"><img src="https://agentmods.dev/badge/skills/ivanshtokov/copilot-kit/plan-writing.svg" alt="Measured on agentmods" height="20"></a>
Per session 31 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,009 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
Origin 97% copy Near-identical to another mod 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 $0.00031 $0.01009
Opus 5 $0.00015 $0.00504
Sonnet 5 $0.00006 $0.00202
Haiku 4.5 $0.00003 $0.00101

Measured 4d ago against content hash 9080548beab3, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

plan-writing scanned grade A 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 4d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

| "Test the API" | "curl localhost:3000/api/users returns 200" |
Origin

This is a copy

97% identical to plan-writing — 12 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.github/skills/plan-writing/SKILL.md · 152 lines

How it starts

The opening of the file, as written. The whole thing — 152 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Plan Writing

Source: obra/superpowers

Overview

This skill provides a framework for breaking down work into clear, actionable tasks with verification criteria.

Task Breakdown Principles

1. Small, Focused Tasks

  • Each task should take 2-5 minutes
  • One clear outcome per task
  • Independently verifiable

2. Clear Verification

  • How do you know it's done?
  • What can you check/test?
  • What's the expected output?

3. Logical Ordering

  • Dependencies identified
  • Parallel work where possible
  • Critical path highlighted
  • Phase X: Verification is always LAST

4. Dynamic Naming in Project Root

  • Plan files are saved as {task-slug}.md in the PROJECT ROOT
  • Name derived from task (e.g., "add auth" → auth-feature.md)
  • NEVER inside .claude/, docs/, or temp folders

Planning Principles (NOT Templates!)

🔴 NO fixed templates. Each plan is UNIQUE to the task.

Principle 1: Keep It SHORT

❌ Wrong ✅ Right
50 tasks with sub-sub-tasks 5-10 clear tasks max
Every micro-step listed Only actionable items
Verbose descriptions One-line per task

Rule: If plan is longer than 1 page, it's too long. Simplify.


Principle 2: Be SPECIFIC, Not Generic

❌ Wrong ✅ Right
"Set up project" "Run npx create-next-app"
"Add authentication" "Install next-auth, create /api/auth/[...nextauth].ts"
"Style the UI" "Add Tailwind classes to Header.tsx"

Rule: Each task should have a clear, verifiable outcome.


Principle 3: Dynamic Content Based on Project Type

For NEW PROJECT:

  • What tech stack? (decide first)
  • What's the MVP? (minimal features)
  • What's the file structure?

For FEATURE ADDITION:

  • Which files are affected?
  • What dependencies needed?
  • How to verify it works?

For BUG FIX:

  • What's the root cause?
  • What file/line to change?
  • How to test the fix?

Principle 4: Scripts Are Project-Specific

Read the full file on GitHub · 152 lines

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. 4d ago First seen · 152 lines · 31 tokens per session scan A 9080548beab3

Subscribe to this mod's changes

plan-writing is a skill published in the GitHub repository ivanshtokov/copilot-kit (2 stars, last pushed 7mo ago), licensed MIT. It adds 31 tokens to every session and 1,009 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). It is 97% identical to plan-writing, differing in 12 lines, and is treated as a copy.

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