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 mimukit/skills --skill mergekitgit clone --depth 1 https://github.com/mimukit/skillsWrote 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/mimukit/skills/mergekit)<a href="https://agentmods.dev/skills/mimukit/skills/mergekit"><img src="https://agentmods.dev/badge/skills/mimukit/skills/mergekit/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/mimukit/skills/mergekit"><img src="https://agentmods.dev/badge/skills/mimukit/skills/mergekit.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00088 | $0.02324 |
| Opus 5.5 | $0.00035 | $0.00930 |
| Sonnet 5.5 | $0.00018 | $0.00465 |
| Haiku 4.5 | $0.00009 | $0.00232 |
Grade A, and why
mergekit 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.
How it starts
The opening of the file, as written. The whole thing — 84 lines — stays where its author put it; the contents beside it link to each section on GitHub.
mergekit
The other half of a pull request's life. Something else opened it, whether you, an agent, or a teammate; mergekit is what you run when it is your turn to judge it, and what you run when your own PR comes back needing changes. It gets the PR into a git worktree, reusing the one the branch already lives in when there is one, gets the project running, and prints a review pack of everything you need to form an opinion. Then it waits. When you say merge, it merges; when it needs changes, it fixes them in the worktree you already have open.
mergekit is the one skill permitted to merge a pull request, a deliberate exception to the "never merge without an explicit ask" rule the rest of a PR toolchain holds. That permission is earned by a single hard precondition, stated in Never merge automatically: a human confirms that specific PR, every time. Without the confirmation, mergekit has no more authority than any other skill.
It forms no opinion about the code. Judging the source is a code-review job; mergekit sets the review up and executes the decision you reach.
When this fires
The PR already exists, and you are either reviewing it, or you authored it and it has come back needing changes:
- list. "What PRs are waiting on me", "show me the ready-for-review PRs", "mergekit list".
- start
<n>. "Pull PR #34 down so I can test it", "set up #34 for review", "check out this PR for QA".<n>is a PR number by default, in every mode here. - close
[<n>]. "Merge #34", "close this PR", "this one's good, land it", "#34 needs changes: ". With no number,closetakes the PR of the current branch. - fix
<n>. The author's side: "my PR is red, fix the CI", "address the review comments on #34", "respond to the feedback on my PR". It triages the feedback before acting on it; it does not apply every comment on sight.
If a PR is named but the action isn't, assume start, because setting a PR up is safe and reversible while merging is not.
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.
- 2d ago Changed 0b9be2317787
- 3d ago Changed 0d98801d2226
- 21d ago Changed · +1 lines f9dc5e68ab5f
- 1mo ago Changed · -4 tokens per session bd95b33c7cda
- 1mo ago First seen · 83 lines · 92 tokens per session scan A caf504ef36aa
mergekit is a skill published in the GitHub repository mimukit/skills (2 stars, last pushed yesterday), licensed MIT. It adds 88 tokens to every session and 2,324 once invoked, about $0.0004 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 2026-08-31.
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code-review-loop
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