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dotfiles: Skill for Claude Code

.agents/skills/gitignore/SKILL.md

gitignore is a skill for Claude Code, Codex from wcygan/dotfiles. It costs 39 tokens per session (1,031 once invoked), scanned B, original, no licence file.

A repository .gitignore audit and update workflow. A .gitignore file tells Git which files not to track.

In plain words
What is it for?
Use it to review tracked and untracked files, design ignore patterns, clean up .gitignore, and check for accidental tracking.
Why use it?
It helps prevent generated files, secrets, and other unintended files from being committed, while checking for files already tracked by mistake.

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 4d ago B scan 39 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/gitignore/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 gitignore

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/wcygan/dotfiles/gitignore"><img src="https://agentmods.dev/badge/skills/wcygan/dotfiles/gitignore.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 39 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,031 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. 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 $0.00039 $0.01031
Opus 5.5 $0.00016 $0.00412
Sonnet 5.5 $0.00008 $0.00206
Haiku 4.5 $0.00004 $0.00103

Measured 2mo ago against content hash 6b08a6f86c2c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

gitignore scanned grade B with 1 finding 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 2mo 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.

Reaches for credential filesmediumPrivilege escalation

SSH keys, cloud credentials, git-credentials, .npmrc, /etc/shadow: reading these is how a config file becomes a credential leak.

- `.netrc` or `.npmrc` when they contain tokens

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

.agents/skills/gitignore/SKILL.md · 173 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. 2mo ago First seen · 173 lines · 39 tokens per session scan B 6b08a6f86c2c

Subscribe to this mod's changes

gitignore is a skill published in the GitHub repository wcygan/dotfiles (195 stars, last pushed 4d ago), with no licence file. It adds 39 tokens to every session and 1,031 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it B with 1 finding (reaches for credential files). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Git and workflow
Related

gitignore compared with skills from other repositories

gitignore next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
gitignorewcygan/dotfilesSkill1954d agononeB39Claude Code, Codex
merge-batchdiegosouzapw/OmniRouteSkill83k5d agoMITA46Claude Code
prowler-commitprowler-cloud/prowlerSkill15kyesterdayApache-2.0A44Claude Code, Codex
gh-auth-isolationgithub/gh-awSkill5.6kyesterdayMITA20Claude Code, Codex
github-skillzeenie-ai/OpenCompanySkill1.1kyesterdayMITA51Claude Code
comet-githubrpamis/cometSkill3.3kyesterdayMITA72Claude Code, Codex
release-helperSahir619/fable-methodSkill2.3k1mo agoMITA43Claude Code