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mutsu: Skill for Claude Code

.agents/skills/ecosystem-cluster-filing/SKILL.md

ecosystem-cluster-filing is a skill for Claude Code, Codex from tokuhirom/mutsu. It costs 98 tokens per session (809 once invoked), scanned A, original, Artistic-2.0.

An automated workflow for finding new groups of related ecosystem failures and filing issues for them. It reads records from a Git branch, groups them with a script, and files only groups without existing issues.

In plain words
What is it for?
Use it to update the ecosystem ledger, cluster failure records, and file up to three new root-cause issues per run.
Why use it?
It reduces repeated manual review of failure records and helps avoid creating duplicate issues. It is intended for scheduled runs after a nightly update.

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 7d ago A scan 98 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-cluster-filing/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-cluster-filing

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/tokuhirom/mutsu/ecosystem-cluster-filing"><img src="https://agentmods.dev/badge/skills/tokuhirom/mutsu/ecosystem-cluster-filing.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 98 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 809 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 $0.00098 $0.00809
Opus 5.5 $0.00039 $0.00324
Sonnet 5.5 $0.00020 $0.00162
Haiku 4.5 $0.00010 $0.00081

Measured 7d ago against content hash 2e78c46f9515, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ecosystem-cluster-filing 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.

.agents/skills/ecosystem-cluster-filing/SKILL.md · 62 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

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 Changed · +2 lines 2e78c46f9515
  2. 25d ago Changed ef3f3c93321c
  3. 26d ago Changed · +1 lines 26342c61185a
  4. 1mo ago First seen · 59 lines · 98 tokens per session scan A d42ab27fd30a

Subscribe to this mod's changes

ecosystem-cluster-filing is a skill published in the GitHub repository tokuhirom/mutsu (30 stars, last pushed today), licensed Artistic-2.0. It adds 98 tokens to every session and 809 once invoked, about $0.0004 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 2026-10-04.

DebuggingProject management
Related

ecosystem-cluster-filing compared with skills from other repositories

ecosystem-cluster-filing next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
ecosystem-cluster-filingtokuhirom/mutsuSkill30todayArtistic-2.0A98Claude Code, Codex
systematic-debuggingopen-metadata/OpenMetadataSkill16kyesterdayApache-2.0A37Claude Code
log-error-digestzebbern/claude-code-guideSkill4.7k3d agoMITA71Claude Code, Codex
cwv-optimizeradobe/skillsSkill319yesterdayApache-2.0A112Claude Code
ci-fixersipyourdrink-ltd/bernsteinSkill1.2kyesterdayApache-2.0A15Claude Code, Codex
incident-response-incident-responsermyndharis/antigravity-skillsSkill1.9k23d agoMITA36Claude Code
triaging-web-analytics-supportPostHog/posthogSkill41kyesterdaynoneA151Claude Code, Codex