skill-evolution

skill-evolution is a skill for Claude Code, Codex from juemin4-source/writing-pro-max. It costs 120 tokens per session (2,403 once invoked), scanned A, original, no licence file.

A review and learning tool that extracts user preferences, corrections, and agreements from a conversation. It creates a style profile and suggests improvements to related skills.

In plain words
What is it for?
Use it to review a conversation, record learned style preferences, and propose updates to relevant skills.
Why use it?
It helps future work better match the user's preferred way of working and communicating.

Skill for Claude CodeCodex

Part of the writing-pro-max plugin — 6 skills shipped together

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/juemin4-source/writing-pro-max/skill-evolution
Any agent
npx skills add juemin4-source/writing-pro-max --skill skill-evolution
Clone the repo
git clone --depth 1 https://github.com/juemin4-source/writing-pro-max

Made for: Claude Code, Codex.

Or install writing-pro-max, the plugin that ships this one along with the rest of its 6 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 skill-evolution

README.md
[![agentmods](https://agentmods.dev/badge/skills/juemin4-source/writing-pro-max/skill-evolution.svg)](https://agentmods.dev/skills/juemin4-source/writing-pro-max/skill-evolution)
Your own site
<a href="https://agentmods.dev/skills/juemin4-source/writing-pro-max/skill-evolution"><img src="https://agentmods.dev/badge/skills/juemin4-source/writing-pro-max/skill-evolution.svg" alt="Measured on agentmods" height="20"></a>
Per session 120 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,403 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00120 $0.02403
Opus 5 $0.00060 $0.01202
Sonnet 5 $0.00024 $0.00481
Haiku 4.5 $0.00012 $0.00240

Measured 3d ago against content hash 85715d10f731, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

skill-evolution 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.

skill-evolution/SKILL.md · 133 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

Files

What ships with it

5 files 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 First seen · 133 lines · 120 tokens per session scan A 85715d10f731

Subscribe to this mod's changes

skill-evolution is a skill published in the GitHub repository juemin4-source/writing-pro-max (6 stars, last pushed 1mo ago), with no licence file. It adds 120 tokens to every session and 2,403 once invoked, about $0.0006 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 2026-08-31.

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