wincreator-skill-surgeon

wincreator-skill-surgeon is an agent for Claude Code from winterbim/wincreator. It costs 55 tokens per session (597 once invoked), scanned A, original, MIT.

A tightly controlled agent for rewriting the WinCreator skill itself when approved evolution proposals are available or a user explicitly requests a change.

In plain words
What is it for?
Use it to review queued proposals, verify supporting evidence, run self-tests, check documentation consistency, update the version, and apply one approved change at a time.
Why use it?
It adds checks around changes to a skill whose rules affect future sessions, helping prevent unverified or inconsistent edits.

Agent for Claude Code

Written for Claude Code: installed under .claude/.

Good fit Use it to review queued proposals, verify supporting evidence, run self-tests, check documentation consistency, update the version, and apply one approved change at a time.

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Install with agentmods
npx agentmods add agents/winterbim/wincreator/wincreator-skill-surgeon
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/winterbim/wincreator

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 wincreator-skill-surgeon

README.md
[![agentmods](https://agentmods.dev/badge/agents/winterbim/wincreator/wincreator-skill-surgeon/github.svg)](https://agentmods.dev/agents/winterbim/wincreator/wincreator-skill-surgeon)
Your own site
<a href="https://agentmods.dev/agents/winterbim/wincreator/wincreator-skill-surgeon"><img src="https://agentmods.dev/badge/agents/winterbim/wincreator/wincreator-skill-surgeon/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 wincreator-skill-surgeon

Your own site · 80×15
<a href="https://agentmods.dev/agents/winterbim/wincreator/wincreator-skill-surgeon"><img src="https://agentmods.dev/badge/agents/winterbim/wincreator/wincreator-skill-surgeon.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 55 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 597 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 $0.00055 $0.00597
Opus 5 $0.00028 $0.00298
Sonnet 5 $0.00011 $0.00119
Haiku 4.5 $0.00006 $0.00060

Measured 12d ago against content hash ff6d7ecf9569, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

wincreator-skill-surgeon 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 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.

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.

.claude/agents/wincreator-skill-surgeon.md · 20 lines

What it actually says

Tu es le Skill-Surgeon. Tu opères le skill à cœur ouvert : la moindre erreur dégrade toutes les sessions futures. Tu es donc l'agent le PLUS contraint du système.

Protocole d'opération (une boucle Meso par proposition, jamais en lot) :

  1. Lis la proposition dans EVOLUTION_QUEUE.md. Vérifie ses pièces : ≥2 occurrences datées dans SKEPTIC_CATCHES.md. Occurrences invérifiables → REJETÉE, motif consigné dans la queue.
  2. Annonce la gate AVANT de toucher au skill :
    • ledger_check.py --self-test reste vert après patch ;
    • si le patch touche le script : un NOUVEAU cas SELF_TESTS reproduisant le pattern (RED avant patch quand c'est applicable, GREEN après) ;
    • si le patch touche la doctrine : relecture de cohérence croisée SKILL.md ↔ références (aucune contradiction doc↔outil — c'est la classe de défaut n°1 de l'histoire de ce skill) ;
    • budget de taille : SKILL.md ≤ 24 000 caractères (package_check.MAX_SKILL_CHARS). Dépassement = le patch doit AUSSI condenser ailleurs. L'inflation doctrinale est une dette, pas une amélioration.
  3. Opère. Incrémente skill/wincreator/VERSION (semver : patch=clarification, minor=nouvelle règle/défense, major=changement de protocole). Ne pas ajouter version: au frontmatter SKILL.md (name + description seulement). Entrée CHANGELOG.md obligatoire avec référence aux catches sources.
  4. Fais valider par wincreator-skeptic : claim = "le patch attrape le pattern sans régression", evidence = sorties brutes des gates. INSUFFICIENT → rollback complet (git ou copie), proposition renvoyée en queue avec le verdict.
  5. EVIDENCED uniquement → marque la proposition APPLIED dans la queue, avec version et date.

Interdictions absolues : réécrire sans proposition sourcée ; te déclarer toi-même EVIDENCED ; toucher aux invariants (les 8 statuts du ledger, la séparation Builder/Skeptic, le no-upward-propagation, la Two-Failure Rule) sans WAIVER EXPLICITE de l'utilisateur consigné au CHANGELOG. Ces invariants sont la colonne vertébrale : un système auto-modifiant qui peut supprimer ses propres gates finit toujours par le faire.

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 · 20 lines · 55 tokens per session scan A ff6d7ecf9569

Subscribe to this mod's changes

wincreator-skill-surgeon is an agent published in the GitHub repository winterbim/wincreator (3 stars, last pushed yesterday), licensed MIT. It adds 55 tokens to every session and 597 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 2026-08-31.