skills-repo-maintenance

skills-repo-maintenance is a skill for Claude Code, Codex from akiojin/skills. It costs 53 tokens per session (787 once invoked), scanned A, original, MIT.

A workflow for adding or updating skills in a repository used by Codex and Claude Code, including their required files and packaged skill files.

In plain words
What is it for?
Use it when creating skills, packaging .skill files, or converting skills into Claude Code plugins.
Why use it?
It helps keep the two tool formats aligned and ensures repository metadata and packaging are handled consistently.

Skill for Claude CodeCodex

Written for Claude Code and Codex: Claude Code plugin machinery, but also reads ~/.codex or $CODEX_HOME. Also seen: mentions Claude Code; mentions Codex.

Good fit Use it when creating skills, packaging .skill files, or converting skills into Claude Code plugins.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/akiojin/skills/skills-repo-maintenance
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 akiojin/skills --skill skills-repo-maintenance
Clone the repo
git clone --depth 1 https://github.com/akiojin/skills

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 skills-repo-maintenance

README.md
[![agentmods](https://agentmods.dev/badge/skills/akiojin/skills/skills-repo-maintenance/github.svg)](https://agentmods.dev/skills/akiojin/skills/skills-repo-maintenance)
Your own site
<a href="https://agentmods.dev/skills/akiojin/skills/skills-repo-maintenance"><img src="https://agentmods.dev/badge/skills/akiojin/skills/skills-repo-maintenance/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 skills-repo-maintenance

Your own site · 80×15
<a href="https://agentmods.dev/skills/akiojin/skills/skills-repo-maintenance"><img src="https://agentmods.dev/badge/skills/akiojin/skills/skills-repo-maintenance.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 53 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 787 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 $0.00053 $0.00787
Opus 5 $0.00026 $0.00394
Sonnet 5 $0.00011 $0.00157
Haiku 4.5 $0.00005 $0.00079

Measured 12d ago against content hash c29d5c2067ea, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

skills-repo-maintenance 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.

skills-repo-maintenance/SKILL.md · 87 lines

How it starts

The opening of the file, as written. The whole thing — 87 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skills Repo Maintenance

Overview

Maintain a skills repository and keep Codex and Claude Code artifacts in sync.

Workflow

0) Defaults to apply

  • Target runtime: Codex + Claude Code (both).
  • Package output: must be specified by the user every time (no default).

1) Identify the repo root

  • Use the current repo (git root) as the base.
  • Example: git rev-parse --show-toplevel

2) Decide the target runtime(s)

  • Default is both. If the user explicitly asks for only one runtime, confirm before skipping the other.
  • Codex: add a skill folder with SKILL.md at repo root.
  • Claude Code: add a plugin folder with .claude-plugin/plugin.json and update .claude-plugin/marketplace.json.
    • For both, do both and package .skill files for Codex distribution.

3) Create or update the skill content

  • Skill folder must contain SKILL.md with YAML frontmatter (name, description).
  • Use lowercase + hyphens for skill names.
  • Put extra materials under references/, scripts/, assets/ as needed.

4) Claude Code plugin requirements (if applicable)

  • Plugin lives at repo root (e.g. drawio/, gh-fix-ci/, cli-design/).
  • Add .claude-plugin/plugin.json inside the plugin folder.
  • Add an entry to <repo-root>/.claude-plugin/marketplace.json:
    • name, source, description, version, category, keywords
  • If the plugin contains multiple skills, place them under <plugin>/skills/<skill-name>/SKILL.md.

5) Codex packaging (if applicable)

  • Package to the user-specified output directory using the skill packager.
  • On Windows, set UTF-8 to avoid decode errors.
$env:PYTHONUTF8=1
$codexHome = $env:CODEX_HOME
if (-not $codexHome) { $codexHome = "$env:USERPROFILE\.codex" }
$outDir = "<output-dir>"
python "$codexHome\skills\.system\skill-creator\scripts\package_skill.py" `
  "<repo-root>\\<skill-folder>" `
  $outDir
export PYTHONUTF8=1
codex_home="${CODEX_HOME:-$HOME/.codex}"
out_dir="<output-dir>"
python "$codex_home/skills/.system/skill-creator/scripts/package_skill.py" \
  "<repo-root>/<skill-folder>" \
  "$out_dir"

Read the full file on GitHub · 87 lines

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 · 87 lines · 53 tokens per session scan A c29d5c2067ea

Subscribe to this mod's changes

skills-repo-maintenance is a skill published in the GitHub repository akiojin/skills (8 stars, last pushed 6mo ago), licensed MIT. It adds 53 tokens to every session and 787 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.

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