repo-gitignore

repo-gitignore is a skill for Claude Code, Codex from rjwalters/kicad-tools. It costs 21 tokens per session (4,245 once invoked), scanned A, original, MIT.

A checker for Git ignore rules, which tell Git which files to leave out of version control. It finds files hidden by mistake and build or sensitive files that should be excluded.

In plain words
What is it for?
Use it to audit the whole repository or one directory and identify ignore-rule changes that need review.
Why use it?
Incorrect ignore rules can hide source files or allow generated files, credentials, and dumps into the repository. The right rules also depend on whether the repository is public or private.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: positional $N argument; mentions Claude Code; installed under .agents/ (shared by several agents).

Good fit Use it to audit the whole repository or one directory and identify ignore-rule changes that need review.

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

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 repo-gitignore

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/rjwalters/kicad-tools/repo-gitignore"><img src="https://agentmods.dev/badge/skills/rjwalters/kicad-tools/repo-gitignore.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 21 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,245 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 $0.00021 $0.04245
Opus 5.5 $0.00008 $0.01698
Sonnet 5.5 $0.00004 $0.00849
Haiku 4.5 $0.00002 $0.00424

Measured 2d ago against content hash ec1b92b7fc3f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

repo-gitignore 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 2d 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/repo-gitignore/SKILL.md · 345 lines

How it starts

The opening of the file, as written. The whole thing — 345 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Codex form of the /repo:gitignore command. Other commands appear as $repo-<verb> skills. Helper scripts and .claude/ paths below are relative to the repository root and exist when the Claude Code surface is installed alongside this one.

$repo-gitignore — Gitignore Audit

Check that gitignore rules are appropriate for this repository. Catches files that shouldn't be ignored and build artifacts that should be.

Usage

$repo-gitignore                  # Full repo — apply clear rule fixes, report as you go
$repo-gitignore data/            # Check one subtree
$repo-gitignore --ask            # Review findings and confirm before editing

Context First

Determine whether the repo is public or private before judging rules (gh repo view --json isPrivate --jq .isPrivate, or ask the user if there is no GitHub remote). The right answer differs:

  • Private repos often want data files, docs, and notes tracked — flag rules that hide them.
  • Public repos often want those same files ignored — flag tracked files that look like they leaked in (credentials, dumps, personal notes are critical findings either way).

What It Checks

1. Over-Ignored Files

Flag gitignore rules that exclude things that look like real content:

  • Data files (.yaml, .json, .csv) that aren't build output
  • Documentation or notes
  • Configuration that isn't secrets

Always keep ignored, in any repo:

  • .env files and anything credential-like
  • node_modules/, .venv/, __pycache__/
  • Build output (dist/, build/, target/, *.pyc)
  • IDE files (.vscode/, .idea/)
  • OS files (.DS_Store)
Tracked files that match an ignore rule

git ls-files -ci --exclude-standard lists tracked files that also match an ignore rule. That listing is not a reason to drop the rule. Ignore rules never apply to tracked files, so the tracked files are unaffected by the rule — re-renders or edits of them still show as modified. The rule only hides new, untracked files under that path. Dropping it surfaces those instead, dirtying the primary checkout (and, in a Loom-managed repo, handing a sweep's quarantine step a pile of files to stash away).

Read the full file on GitHub · 345 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. 2d ago Changed ec1b92b7fc3f
  2. 8d ago First seen · 345 lines · 21 tokens per session scan A a7ec4d35a809

Subscribe to this mod's changes

repo-gitignore is a skill published in the GitHub repository rjwalters/kicad-tools (73 stars, last pushed yesterday), licensed MIT. It adds 21 tokens to every session and 4,245 once invoked, about $0.0001 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 2026-11-01.

Related

repo-gitignore compared with skills from other repositories

repo-gitignore next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
repo-gitignorerjwalters/kicad-toolsSkill73yesterdayMITA21Claude Code, Codex
merge-batchdiegosouzapw/OmniRouteSkill85kyesterdayMITA46Claude Code
prowler-commitprowler-cloud/prowlerSkill15ktodayApache-2.0A44Claude Code, Codex
gh-auth-isolationgithub/gh-awSkill5.6ktodayMITA20Claude Code, Codex
comet-githubrpamis/cometSkill3.3kyesterdayMITA72Claude Code, Codex
github-skillzeenie-ai/OpenCompanySkill1.1k4d agoMITA51Claude Code
re0-mergeLilMGenius/paperthinSkill1.4kyesterdayMITA70Claude Code