git

A guide to Git, the version-control system used to track changes to code and collaborate through branches.

In plain words
What is it for?
Use it to inspect changes and history, stage and commit files, create or switch branches, synchronize with a remote repository, and find when a line changed.
Why use it?
It provides common commands for checking work, reviewing history, creating commits, and managing branches without memorizing them.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/gebruder/wirken/git
Any agent
npx skills add gebruder/wirken --skill git
Clone the repo
git clone --depth 1 https://github.com/gebruder/wirken

Made for: Claude Code, Codex.

Per session 6 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 295 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00006 $0.00295
Opus 5 $0.00003 $0.00148
Sonnet 5 $0.00001 $0.00059
Haiku 4.5 $0.00001 $0.00030

Measured 2d ago against content hash 415b43c5c7ed, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

git 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.

skills/git/SKILL.md · 45 lines

What it actually says

Git

Perform git operations in the workspace.

Common operations

  • Status: git status
  • Log: git log --oneline -20
  • Diff: git diff
  • Staged diff: git diff --cached
  • Add files: git add <file> or git add -A
  • Commit: git commit -m "message"
  • Branch: git branch -a
  • Switch branch: git checkout <branch> or git switch <branch>
  • Create branch: git checkout -b <branch>
  • Pull: git pull
  • Push: git push
  • Stash: git stash / git stash pop
  • Blame: git blame <file>
  • Search history: git log --grep="pattern"
  • Find who changed a line: git log -p -S "text" -- <file>

Tips

  • Always check git status before committing
  • Use git diff --stat for a summary of changes
  • Use git log --oneline --graph for branch visualization
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 First seen · 45 lines · 6 tokens per session scan A 415b43c5c7ed

Subscribe to this mod's changes

git is a skill published in the GitHub repository gebruder/wirken (169 stars, last pushed 3d ago), licensed MIT. It adds 6 tokens to every session and 295 once invoked, about $0.0000 per session on Opus 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.

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