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mutsu: Skill for Claude Code

.agents/skills/ecosystem-dist-fix/SKILL.md

ecosystem-dist-fix is a skill for Claude Code, Codex from tokuhirom/mutsu. It costs 167 tokens per session (5,943 once invoked), scanned A, original, Artistic-2.0.

A workflow for making a Raku package's test suite pass under two Raku language implementations: Rakudo and Mutsu. It downloads the package and its dependencies, runs the tests, and addresses interpreter-related failures.

In plain words
What is it for?
Use it to test one distribution and its dependency closure under both interpreters, fix bounded Mutsu issues, and prepare a project contribution when appropriate.
Why use it?
It helps identify whether a failing package test is caused by the package or by a missing feature in the Mutsu interpreter. Complex interpreter gaps can be reported to the Mutsu project instead of being worked around locally.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing. Also seen: installed under .agents/ (shared by several agents).

This is tokuhirom/mutsu's own configuration. It tells Claude Code and Codex how to work on mutsu 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 mutsu configures →

not rated 30repo changed 3d ago A scan 167 tokens Artistic-2.0
View source ↗ tokuhirom/mutsu tokuhirom.github.io
Reuse

Borrowing it

Nothing to install: this file belongs to tokuhirom/mutsu. 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/tokuhirom/mutsu/main/.agents/skills/ecosystem-dist-fix/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/tokuhirom/mutsu

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 ecosystem-dist-fix

README.md
[![agentmods](https://agentmods.dev/badge/skills/tokuhirom/mutsu/ecosystem-dist-fix/github.svg)](https://agentmods.dev/skills/tokuhirom/mutsu/ecosystem-dist-fix)
Your own site
<a href="https://agentmods.dev/skills/tokuhirom/mutsu/ecosystem-dist-fix"><img src="https://agentmods.dev/badge/skills/tokuhirom/mutsu/ecosystem-dist-fix/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 ecosystem-dist-fix

Your own site · 80×15
<a href="https://agentmods.dev/skills/tokuhirom/mutsu/ecosystem-dist-fix"><img src="https://agentmods.dev/badge/skills/tokuhirom/mutsu/ecosystem-dist-fix.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 167 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,943 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 $0.00167 $0.05943
Opus 5.5 $0.00067 $0.02377
Sonnet 5.5 $0.00033 $0.01189
Haiku 4.5 $0.00017 $0.00594

Measured 3d ago against content hash 3836fb59198e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ecosystem-dist-fix 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.

The scan reads SKILL.md. This mod also ships 1 executable file (checkout-dist.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

.agents/skills/ecosystem-dist-fix/SKILL.md · 365 lines

The source is not reproduced here

Licensed Artistic-2.0

The repository is licensed Artistic-2.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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 3836fb59198e
  2. 7d ago Changed · +14 lines 7f6aad8c7e83
  3. 10d ago Changed fbec8348bcba
  4. 16d ago Changed · +3 lines f87233ef6ae3
  5. 25d ago Changed 90037cab5bb6
  6. 26d ago Changed · +17 lines 74ff16c78c43
  7. 1mo ago Changed c5da98e65f59
  8. 1mo ago Changed · +5 lines · +2 tokens per session 1cd4a85321ba
  9. 1mo ago Changed a612a1a81368
  10. 1mo ago First seen · 326 lines · 165 tokens per session scan A cda55538f627

Subscribe to this mod's changes

ecosystem-dist-fix is a skill published in the GitHub repository tokuhirom/mutsu (30 stars, last pushed today), licensed Artistic-2.0. It adds 167 tokens to every session and 5,943 once invoked, about $0.0007 per session on Opus 5.5. 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 2026-09-11.

Testing
Related

ecosystem-dist-fix compared with skills from other repositories

ecosystem-dist-fix next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
ecosystem-dist-fixtokuhirom/mutsuSkill30todayArtistic-2.0A167Claude Code, Codex
imagegenopenai/codexSkill133kyesterdayApache-2.0A113Codex
playwright-climicrosoft/playwrightSkill99kyesterdayApache-2.0A19Claude Code
local-ai-agentsmicrosoft/ai-agents-for-beginnersSkill79k4d agoMITA200Claude Code, Codex
systematic-debuggingobra/superpowersSkill313k3d agoMITA21Claude Code
next-cache-components-adoptionvercel/next.jsSkill143ktodayMITA95Claude Code
next-partial-prefetching-adoptionvercel/next.jsSkill143ktodayMITA103Claude Code