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 agentmods add skills/motlin/claude-code-plugins/git-split-branchnpx skills add motlin/claude-code-plugins --skill git-split-branchgit clone --depth 1 https://github.com/motlin/claude-code-pluginsWhat 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 | $0.00018 | $0.00221 |
| Opus 5 | $0.00009 | $0.00111 |
| Sonnet 5 | $0.00004 | $0.00044 |
| Haiku 4.5 | $0.00002 | $0.00022 |
Grade A, and why
git-split-branch 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.
What it actually says
Git Split Branch
Use the code:cli skill.
Determine the base branch from the user argument, upstream tracking branch, main, or master. Ask if no base is clear.
List commits:
git log --oneline --reverse <base-branch>..HEAD
If there are fewer than two commits, explain that there is nothing useful to split.
For each commit, propose a short kebab-case branch name based on the commit subject and content. Show all names and ask for confirmation.
For each commit:
- If the target branch exists and already points at that commit, skip it.
- If the target branch exists with different content, append a numeric suffix.
- Create the branch from the base branch.
- Switch to it and cherry-pick the commit.
- If conflicts occur, report the branch and continue with remaining branches.
- Return to the original branch.
Never delete or modify the original branch. Never force push.
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.
- 2d ago First seen · 32 lines · 18 tokens per session scan A 67b80d4043cd
git-split-branch is a skill published in the GitHub repository motlin/claude-code-plugins (15 stars, last pushed 3d ago), licensed Apache-2.0. It adds 18 tokens to every session and 221 once invoked, about $0.0001 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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