New: 98,000+ skills indexed from GitHub repos with 100+ stars · every skill safety-checkedBrowse top skillsTop skills
Esc to closeBrowse all skills
Submit a skillBrowse skills
Submit a skillBrowse skills

Agent skill

PR Splitter

by mastra-ai in mastra-ai/mastra

A skill your agent uses when breaking a large, complex, messy, or hard-to-review pull request into multiple smaller PRs; planning stacked PRs; extracting independent changes from a branch; splitting…

Custom licenceAuto-check passedDevelopment

Install PR Splitter

skills CLI
$ npx skills add mastra-ai/mastra --skill pr-splitter -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install mastra-ai/mastra pr-splitter --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/mastra-ai/mastra.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/pr-splitter .claude/skills/pr-splitter && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
pr-splitter
GitHub stars
29k
Token cost
~1.5k tokens
SKILL.md length
668 words
Files
1
Skills in repo
44
Repo updated
First seen
Licence
Custom licence

At a glance

A skill your agent uses when breaking a large, complex, messy, or hard-to-review pull request into multiple smaller PRs; planning stacked PRs; extracting independent changes from a branch; splitting…

  • Works in 8 steps: Snapshot before touching history → Inventory the original PR → Create a local scratchpad → …
  • Breaking a large
  • SKILL.md covers Required workflow, PR description pattern, Scratchpad template and Changesets, plus 2 more sections
  • Calls git and pnpm

What it does

PR Splitter is an agent skill from mastra-ai/mastra. Use when breaking a large, complex, messy, or hard-to-review pull request into multiple smaller PRs; planning stacked PRs; extracting independent changes from a branch; splitting mixed refactor and behavior changes; managing drift after review feedback; rebasing follow-up PRs as earlier PRs change; or preserving original branch intent while shipping incrementally.

Its SKILL.md is about 1.5k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Development, covering Pull requests and Refactoring. It works with Git. The repository describes itself as: Mastra is the modern TypeScript framework for AI-powered applications and agents.

When your agent uses it

  • Breaking a large
  • Hard-to-review pull request into multiple smaller PRs
  • Planning stacked PRs
  • Extracting independent changes from a branch

Example prompts

  • “/pr-splitter”

Workflow steps

8 steps, taken from the first numbered list in SKILL.md.

  1. Snapshot before touching history
  2. Inventory the original PR
  3. Create a local scratchpad
  4. Choose the split shape
  5. Extract changes safely
  6. Verify each PR independently
  7. Manage drift deliberately
  8. Use range-diff for rewritten stacks

What it can do on your machine

Read from SKILL.md and the folder at commit b98829a. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • git
    • pnpm

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md. Its commands use git and pnpm, which can reach the network depending on how they are called.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

PR Splitter loads about 1.5k tokens when it runs. Until then it costs about 95 tokens; SKILL.md has 668 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~95
When it runs · the whole SKILL.md, loaded when a task matches
~1.5k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 668 words (~1,459 tokens).

“Preserve the original PR as source material, build smaller reviewable PRs intentionally, and track drift locally as review feedback changes the stack.”

— opening of SKILL.md by mastra-ai, Custom licence
name
pr-splitter

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .claude/skills/pr-splitter of mastra-ai/mastra.

Open the folder on GitHubat commit b98829a

Compare with similar skills

PR Splitter next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

PR Splitter compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
PR Splitter this skillmastra-ai/mastra29k—~1.5kAutomated safety check: PassCustom licence
Adk Reviewgoogle/adk-python22k—~1.7kAutomated safety check: PassApache-2.0
CodexRedWoodOG/Hermes-Desktop1772 repos~1kAutomated safety check: PassMIT
Finishing a Development Branchobra/superpowers297k5 repos~1.9kAutomated safety check: PassMIT
Contributor-First PR MergeHKUDS/OpenHarness16k1 repos~847Automated safety check: PassMIT
Open Code Review CLIalibaba/open-code-review46k—~3.1kAutomated safety check: PassApache-2.0

Similar skills

  • Adk Review

    google/adk-python

    Official

    Reviews the uncommitted changes in an adk-python working tree and reports correctness, design, public-API stability, test, sample and documentation gaps as a prioritized findings report, fixing them…

    22k GitHub stars~1.7k tokensUpdated today
    DevelopmentAuto-check passed

  • Codex

    RedWoodOG/Hermes-Desktop

    Delegate coding tasks to OpenAI Codex CLI agent. An agent skill from RedWoodOG/Hermes-Desktop.

    177 GitHub starsUsed in 2 repos~1k tokens
    DevelopmentAuto-check passed

  • Finishing a Development Branch

    obra/superpowers

    Walks the last step of a branch: confirm tests pass, detect the git environment, ask how to integrate, carry out your choice and clean up the worktree.

    297k GitHub starsUsed in 5 repos~1.9k tokens
    DevelopmentAuto-check passed

  • Contributor-First PR Merge

    HKUDS/OpenHarness

    Merges external GitHub pull requests while keeping the original author credited, and fixes conflicts after the merge instead of rewriting the contribution.

    16k GitHub starsUsed in 1 repo~847 tokens
    DevelopmentAuto-check passed

  • Open Code Review CLI

    alibaba/open-code-review

    Runs the ocr command-line tool to review Git changes, a commit or a branch comparison with an AI model, returning line-level comments and optionally applying fixes.

    46k GitHub stars~3.1k tokensUpdated yesterday
    DevelopmentAuto-check passed

  • Create Pull Request

    cline/cline

    Opens a GitHub pull request from your current branch with the gh CLI, after reviewing the commits and diff and gathering the details the PR needs.

    70k GitHub starsUsed in 1 repo~1.6k tokens
    DevelopmentAuto-check passed

More from mastra-ai/mastra

All 44 skills in this repo

  • Docs Audit

    mastra-ai/mastra

    Autonomous, report-only documentation review for Mastra docs.

    29k GitHub stars~3k tokensUpdated today
    Auto-check passed

  • Builder Smoke Test

    mastra-ai/mastra

    Smoke test the Agent Builder feature branch end-to-end against a hermetic project scaffolded by the skill (linked to the current worktree).

    29k GitHub stars~11k tokensUpdated today
    Auto-check: notes

  • Mastra Smoke Test

    mastra-ai/mastra

    Smoke test Mastra projects locally or deploy to staging/production.

    29k GitHub stars~4k tokensUpdated today
    Auto-check: notes

  • React Best Practices

    mastra-ai/mastra

    React performance optimization guidelines from Mastra Engineering.

    29k GitHub stars~1.9k tokensUpdated today
    Auto-check passed

  • Agent Prompt Quality Bar

    mastra-ai/mastra

    Universal quality bar and final audit rubric for any agent system prompt.

    29k GitHub stars~2k tokensUpdated today
    Auto-check passed

  • Coding Agent

    mastra-ai/mastra

    Authoring playbook for building agents that write, edit, review, or refactor code.

    29k GitHub stars~2.3k tokensUpdated today
    Auto-check passed

Works with

Categories

Questions about PR Splitter

What does PR Splitter do?

A skill your agent uses when breaking a large, complex, messy, or hard-to-review pull request into multiple smaller PRs; planning stacked PRs; extracting independent changes from a branch; splitting…. PR Splitter is an agent skill from mastra-ai/mastra. Use when breaking a large, complex, messy, or hard-to-review pull request into multiple smaller PRs; planning stacked PRs; extracting independent changes from a branch; splitting mixed refactor and behavior changes; managing drift after review feedback; rebasing follow-up PRs as earlier PRs change; or preserving original branch intent while shipping incrementally.

When should I use PR Splitter?

PR Splitter fits situations like: breaking a large; hard-to-review pull request into multiple smaller PRs; planning stacked PRs; extracting independent changes from a branch.

How do I install PR Splitter in Claude Code?

Run `npx skills add mastra-ai/mastra --skill pr-splitter -a claude-code`. Or copy the skill folder (.claude/skills/pr-splitter in mastra-ai/mastra) into .claude/skills/pr-splitter in your project. Claude Code loads it when a task matches its description.

How do I install PR Splitter in Codex?

Run `npx skills add mastra-ai/mastra --skill pr-splitter -a codex`. Or copy the skill folder (.claude/skills/pr-splitter in mastra-ai/mastra) into .agents/skills/pr-splitter in your project. Codex loads it when a task matches its description.

Can I use PR Splitter in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add mastra-ai/mastra --skill pr-splitter -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/pr-splitter, .gemini/skills/pr-splitter, .github/skills/pr-splitter and .opencode/skills/pr-splitter in your project.

What does PR Splitter need to run?

Going by SKILL.md and its folder, PR Splitter needs the command-line tools its instructions call (git and pnpm).

Does PR Splitter access the network?

SKILL.md contains no URLs. Its commands use git, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is PR Splitter safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does PR Splitter use?

PR Splitter has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does PR Splitter use?

About 1.5k tokens (SKILL.md is roughly 5.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to PR Splitter?

Skills that share tags, products or a category with PR Splitter: Adk Review (google/adk-python, 22k stars), Codex (RedWoodOG/Hermes-Desktop, 177 stars), Finishing a Development Branch (obra/superpowers, 297k stars) and Contributor-First PR Merge (HKUDS/OpenHarness, 16k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains PR Splitter?

mastra-ai (a GitHub organization) maintains it in mastra-ai/mastra, which has 28,698 GitHub stars. The repository holds 44 skills in this directory. The repository was last updated on October 11, 2026.

Source: mastra-ai/mastra on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.