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.
npx skills add OutlineDriven/odin-claude-plugin --skill setup-gitignoregit clone --depth 1 https://github.com/OutlineDriven/odin-claude-pluginWrote 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.
[](https://agentmods.dev/skills/outlinedriven/odin-claude-plugin/setup-gitignore)<a href="https://agentmods.dev/skills/outlinedriven/odin-claude-plugin/setup-gitignore"><img src="https://agentmods.dev/badge/skills/outlinedriven/odin-claude-plugin/setup-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.
<a href="https://agentmods.dev/skills/outlinedriven/odin-claude-plugin/setup-gitignore"><img src="https://agentmods.dev/badge/skills/outlinedriven/odin-claude-plugin/setup-gitignore.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00040 | $0.01932 |
| Opus 5.5 | $0.00016 | $0.00773 |
| Sonnet 5.5 | $0.00008 | $0.00386 |
| Haiku 4.5 | $0.00004 | $0.00193 |
Grade A, and why
setup-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 1mo 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.
How it starts
The opening of the file, as written. The whole thing — 116 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Setup gitignore
Contract
| Field | Bound contract |
|---|---|
| Trigger | set up gitignore / fix gitignore / untracked files keep appearing |
| Authority | Reversible local: writes only the repository .gitignore; rollback is the pre-merge snapshot or version control. No remote mutation. Never read or write a global excludes file. |
| Side effect | Writes or edits .gitignore; never ~/.gitignore, ~/.config/git/ignore, or git config --global. |
| Done | .gitignore has stable section anchors, composing it again with the same inputs produces identical bytes, and before/after untracked counts are reported. |
Inputs
No required user input. Operate on the current Git repository.
Optional input is a set of empirical ignore patterns explicitly confirmed by the user after reviewing current untracked-path clusters. Never infer confirmation and never add an empirical pattern silently.
Procedure
-
Locate the repository. Run
git rev-parse --show-toplevel, change the working directory used by this procedure to that exact root, and stop withnot-a-repositoryif it fails. Do not inspect global Git ignore configuration. Done when: the repository root is confirmed ornot-a-repositoryis reported. -
Detect template keys at depth two. Enumerate regular files at repository-relative depth 0, 1, or 2, excluding
.git/. Apply every matching row, deduplicate keys, and sort keys lexicographically before joining them with commas: Done when: the sorted key list is produced (possibly empty).Evidence filename gitignore.io key(s) tsconfig.json,tsconfig.*.jsonnode,typescriptpackage.jsonnodepyproject.toml,requirements.txt,setup.py,setup.cfg,PipfilepythonCargo.tomlrustgo.modgodune-project,dune,*.opamocamlpom.xml,build.gradle,build.gradle.ktsjavasettings.gradle.ktswith Kotlin source filesjava,kotlinCMakeLists.txtcmake,c++Gemfile,*.gemspecrubycomposer.jsonphp
What ships with it
5 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 1mo ago Changed · -18 tokens per session 500ad8e10778
- 1mo ago First seen · 116 lines · 58 tokens per session scan A 410e623054ab
setup-gitignore is a skill published in the GitHub repository OutlineDriven/odin-claude-plugin (38 stars, last pushed 24d ago), licensed Apache-2.0. It adds 40 tokens to every session and 1,932 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 2026-09-04.
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