Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/Mariatta/claude-skillsnpx agentmods add skills/mariatta/claude-skills/gitWrote 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/mariatta/claude-skills/git)<a href="https://agentmods.dev/skills/mariatta/claude-skills/git"><img src="https://agentmods.dev/badge/skills/mariatta/claude-skills/git.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00369 | $0.03251 |
| Opus 5 | $0.00185 | $0.01625 |
| Sonnet 5 | $0.00074 | $0.00650 |
| Haiku 4.5 | $0.00037 | $0.00325 |
Grade C, and why
git scanned grade C 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 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.
Recursive force deletehighDestructive command
rm -rf with a variable or a broad path is one typo away from removing the wrong tree.
git worktree remove ../myrepo-hotfix # not rm -rf How it starts
The opening of the file, as written. The whole thing — 263 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Working with git
Practices for driving git and the forge around it. Nothing here is about what a repository contains; that belongs to the language or framework skill for the project. What belongs here is the part that goes wrong the same way in every repository regardless of what it holds.
This skill is meant to grow. Each practice below is self-contained. Add new ones
under ## Practices, and when one has real detail behind it, give it a file
under references/ and link it from here.
Practices
Starting a repository
Principle. A repository gets its settings on the day it is created, not the day someone is annoyed enough to fix them. Every one of them is a default that decides how the rest of these practices behave.
Ask private or public before anything else. It is not only a visibility flag: on
GitHub Free, rulesets and branch protection are not available on private
repositories, and both endpoints answer 403 Upgrade to GitHub Pro or make this repository public to enable this feature. Squash merges and branch deletion work
either way; the required check is what the answer decides. Never leave the impression
main is gated when the plan does not allow it.
The order matters, and it is this:
- First commit,
.gitignorebefore the firstgit add. Retrofitting it means what you were keeping out is already in history. See the practice below. - Create the remote at the visibility you were told.
- Squash only, and delete the branch on merge.
- A ruleset requiring the CI check, last, because the check has to exist first.
git init -b main # .gitignore, README, LICENSE, ci.yml, commit
gh repo create OWNER/REPO --private --source=. --remote=origin --push # or --public
gh api -X PATCH repos/OWNER/REPO \
-F allow_squash_merge=true -F allow_merge_commit=false \
-F allow_rebase_merge=false -F delete_branch_on_merge=true
Use -F, not -f: -f sends the string "false", which is truthy, and the setting
stays on while the command reports success.
What ships with it
4 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.
- 6d ago First seen · 263 lines · 0 tokens per session scan C d585ec60860e
git is a skill published in the GitHub repository Mariatta/claude-skills (2 stars, last pushed 22d ago), licensed MIT. It adds 369 tokens to every session and 3,251 once invoked, about $0.0018 per session on Opus 5. A static security scan graded it C with 1 finding (recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other skills, from other repositories
prowler-commit
Creates professional git commits following conventional-commits format. Trigger: When creating commits, after completing code changes, when user asks to commit.
gh-auth-isolation
Safely manage multiple GitHub identities (EMU + personal) in agent workflows.
comet-github
将 Comet GitHub 维护请求路由到基于证据的 PR 审阅、Issue 分诊、本地想法收集、CI 诊断或 Issue 实施流程。用户提到 Comet GitHub Issue/PR 但未指定流程，或询问下一步如何处理时使用。.
github-skill
Work with GitHub via the gh CLI — clone repositories, create/list/merge pull requests, create/list issues, and run any other gh command (API calls, workflow runs, releases, repo administration). List operations return parsed JSON.
codex-autoresearch
Run autonomous, measurable experiments in a Git repository: change one hypothesis, verify a numeric metric, keep improvements, and revert failures. Use when the user wants Codex to keep iterating toward a numeric target in the foreground or as a detached background run. Do not use for ordinary one-shot coding…
changelog-composer
Generates structured changelogs and release notes from git history and PRs, classifying breaking changes, features, fixes, performance, docs. Triggers on: "generate changelog", "write release notes", "what changed since", "prepare release", "release notes for", "diff since tag".