evanflow-writing-plans

evanflow-writing-plans is a skill for Claude Code from evanklem/evanflow. It costs 56 tokens per session (1,251 once invoked), scanned A, original, no licence file.

A planning guide that turns a specification or clear requirements into a small, ordered implementation plan. It starts with the relevant file structure and includes a design challenge step called a grill.

In plain words
What is it for?
Use it to plan feature or change work when the requirements are clear enough to act on.
Why use it?
It breaks large coding tasks into concrete pieces and tests the plan before implementation begins.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the evanflow plugin — 16 skills, 2 agents, 1 hook shipped together

Good fit Use it to plan feature or change work when the requirements are…

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/evanklem/evanflow/evanflow-writing-plans
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.

Any agent
npx skills add evanklem/evanflow --skill evanflow-writing-plans
Clone the repo
git clone --depth 1 https://github.com/evanklem/evanflow

Made for: Claude Code.

Or install evanflow, the plugin that ships this one along with the rest of its 16 skills, 2 agents, 1 hook.

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 evanflow-writing-plans

README.md
[![agentmods](https://agentmods.dev/badge/skills/evanklem/evanflow/evanflow-writing-plans.svg)](https://agentmods.dev/skills/evanklem/evanflow/evanflow-writing-plans)
Your own site
<a href="https://agentmods.dev/skills/evanklem/evanflow/evanflow-writing-plans"><img src="https://agentmods.dev/badge/skills/evanklem/evanflow/evanflow-writing-plans.svg" alt="Measured on agentmods" height="20"></a>
Per session 56 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,251 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 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 $0.00056 $0.01251
Opus 5 $0.00028 $0.00626
Sonnet 5 $0.00011 $0.00250
Haiku 4.5 $0.00006 $0.00125

Measured 7d ago against content hash 229067fe0ce6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

evanflow-writing-plans 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 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.

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.

skills/evanflow-writing-plans/SKILL.md · 123 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

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. 7d ago First seen · 123 lines · 56 tokens per session scan A 229067fe0ce6

Subscribe to this mod's changes

evanflow-writing-plans is a skill published in the GitHub repository evanklem/evanflow (418 stars, last pushed 3mo ago), with no licence file. It adds 56 tokens to every session and 1,251 once invoked, about $0.0003 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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