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dotfiles: Skill for Claude Code

.agents/skills/config-change/SKILL.md

config-change is a skill for Claude Code, Codex from wcygan/dotfiles. It costs 49 tokens per session (682 once invoked), scanned A, original, no licence file.

A set of instructions for directing configuration changes to the right project-specific guidance. It covers tools such as Fish, Ghostty, lazygit, Neovim, Starship, Zed, and Zellij.

In plain words
What is it for?
Use it when editing supported tool configurations or making changes that must work across platforms.
Why use it?
It reduces the chance of applying the wrong conventions when changing different parts of a shared configuration repository.

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 wcygan/dotfiles's own configuration. It tells Claude Code and Codex how to work on dotfiles 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 dotfiles configures →

not rated 195repo +1 changed 6d ago A scan 49 tokens no licence
View source ↗ wcygan/dotfiles wcygan.github.io
Reuse

Borrowing it

Nothing to install: this file belongs to wcygan/dotfiles. 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/wcygan/dotfiles/main/.agents/skills/config-change/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/wcygan/dotfiles

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 config-change

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/wcygan/dotfiles/config-change"><img src="https://agentmods.dev/badge/skills/wcygan/dotfiles/config-change.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 49 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 682 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 $0.00049 $0.00682
Opus 5.5 $0.00020 $0.00273
Sonnet 5.5 $0.00010 $0.00136
Haiku 4.5 $0.00005 $0.00068

Measured 6d ago against content hash 950fe1245a65, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

config-change 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 6d 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/config-change/SKILL.md · 61 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

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. 6d ago Changed · +1 lines · +2 tokens per session 950fe1245a65
  2. 2mo ago First seen · 60 lines · 47 tokens per session scan A 0a70516f2c53

Subscribe to this mod's changes

config-change is a skill published in the GitHub repository wcygan/dotfiles (195 stars, last pushed 4d ago), with no licence file. It adds 49 tokens to every session and 682 once invoked, about $0.0002 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 2026-08-30.

Related

config-change compared with skills from other repositories

config-change next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
config-changewcygan/dotfilesSkill1954d agononeA49Claude 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