pr-pre-merge

pr-pre-merge is a command for Claude Code from LeanAndMean/mach10. It costs 17 tokens per session (2,468 once invoked), scanned A, original, MIT.

A pre-merge checklist for a pull request, which is a proposed code change awaiting integration. It checks branch freshness, documentation, version information, the changelog, and tests before merging.

In plain words
What is it for?
Use it with a pull-request number to review contributing rules, update required files, run checks, and commit the final preparation changes.
Why use it?
It helps catch release and documentation tasks that can be missed after code review is complete.

Command for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: names the AskUserQuestion tool.

Part of the mach10 plugin — 14 commands, 1 agent shipped together

Good fit Use it with a pull-request number to review contributing rules, update required files, run checks, and commit the final preparation changes.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/leanandmean/mach10/pr-pre-merge
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.

Clone the repo
git clone --depth 1 https://github.com/LeanAndMean/mach10

Made for: Claude Code.

Or install mach10, the plugin that ships this one along with the rest of its 14 commands, 1 agent.

Wrote 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.

agentmods badge for pr-pre-merge

README.md
[![agentmods](https://agentmods.dev/badge/commands/leanandmean/mach10/pr-pre-merge.svg)](https://agentmods.dev/commands/leanandmean/mach10/pr-pre-merge)
Your own site
<a href="https://agentmods.dev/commands/leanandmean/mach10/pr-pre-merge"><img src="https://agentmods.dev/badge/commands/leanandmean/mach10/pr-pre-merge.svg" alt="Measured on agentmods" height="20"></a>
Per session 17 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,468 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00017 $0.02468
Opus 5 $0.00009 $0.01234
Sonnet 5 $0.00003 $0.00494
Haiku 4.5 $0.00002 $0.00247

Measured 7d ago against content hash 7e272fc2db15, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

pr-pre-merge 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 7d 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.

commands/pr-pre-merge.md · 220 lines

How it starts

The opening of the file, as written. The whole thing — 220 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Pre-Merge Checklist

You are running the pre-merge checklist for a PR that has passed review. Walk through each checklist item, perform the necessary updates, and commit the results.

User input: $ARGUMENTS

Step 0: Parse input and create task list

The user's input contains:

  • A PR number (required)
  • Additional context or constraints (optional)

Extract the PR number from the input. If the input is ambiguous, ask the user to clarify. If context was provided, note it for use in Step 5.

After parsing input, create the progress-tracking task list. Create a task for Step 0 and immediately mark it in progress. Then create tasks for each of the remaining 7 steps one at a time, in step order, all starting as pending. Task list display order matches creation order, so each task must be a separate sequential call -- do not batch multiple task creations in a single message. Store each returned task ID for later use -- do not assume IDs are sequential.

Task Subject activeForm
Step 0 Step 0: Parse input and create task list Parsing input
Step 1 Step 1: Read contributing guidelines Reading contributing guidelines
Step 2 Step 2: Check out and prepare Checking out PR branch
Step 3 Step 3: Check branch freshness Checking branch freshness
Step 4 Step 4: Gather PR context Gathering PR context
Step 5 Step 5: Run pre-merge checklist Running pre-merge checklist
Step 6 Step 6: Commit checklist changes Committing checklist changes
Step 7 Step 7: Present pre-merge report Presenting report

Mark Step 0 complete.

Step 1: Read contributing guidelines

Mark Step 1 in progress.

Look for project contribution guidelines in order of precedence:

CONTRIBUTING.md
DEVELOPMENT.md
.github/CONTRIBUTING.md

Read only the first file found; skip the rest.

If found, read the file and extract any pre-merge requirements (version bumps, changelog entries, documentation updates, test requirements, etc.).

Read the full file on GitHub · 220 lines

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. 7d ago First seen · 220 lines · 17 tokens per session scan A 7e272fc2db15

Subscribe to this mod's changes

pr-pre-merge is a command published in the GitHub repository LeanAndMean/mach10 (20 stars, last pushed 3mo ago), licensed MIT. It adds 17 tokens to every session and 2,468 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.