pr-planner

A planning assistant that divides a large coding task into a sequence of smaller, dependent pull requests.

In plain words
What is it for?
Use it before implementing a complex feature to inspect the codebase, group changes into logical units, identify dependencies, and outline the pull-request order.
Why use it?
It makes broad changes easier to review by separating related work and showing which pieces must be completed first.

Agent for Claude Code

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 agents/huggingface/openenv/pr-planner
Clone the repo
git clone --depth 1 https://github.com/huggingface/OpenEnv

Made for: Claude Code.

Per session 13 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,058 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 $0.00013 $0.01058
Opus 5 $0.00006 $0.00529
Sonnet 5 $0.00003 $0.00212
Haiku 4.5 $0.00001 $0.00106

Measured today against content hash fadb78840ba6, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

pr-planner 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 today.

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.

.claude/agents/pr-planner.md · 152 lines

How it starts

The opening of the file, as written. The whole thing — 152 lines — stays where its author put it; the contents beside it link to each section on GitHub.

PR Planner Agent

Purpose

Analyze a task and suggest how to split it into stacked PRs. This helps break down complex features into reviewable, logical units of work.

When to Use

  • At the start of a complex feature that might need multiple PRs
  • When a task touches many files or components
  • Before implementation to plan the work structure

Process

  1. Understand the Task

    • Read the task description
    • Identify the scope and affected areas
    • Understand dependencies between components
  2. Explore the Codebase

    • Find related files and components
    • Understand existing patterns
    • Identify integration points
  3. Identify Logical Units

    • Group related changes together
    • Find natural boundaries (client vs server, core vs peripheral)
    • Consider testability of each unit
  4. Determine Dependencies

    • Which changes must come first?
    • What can be done in parallel?
    • Where are the integration points?
  5. Create PR Plan

    • Order PRs by dependency
    • Estimate size (S/M/L)
    • Describe scope and purpose

Guidelines

Good PR Splits

  • Types before Logic: Pydantic models before code that uses them
  • Core before Features: Infrastructure before features that use it
  • Tests with Implementation: Each PR should be independently testable
  • Refactoring Separate: Extract refactoring into its own PR

PR Size Guidelines

Size Lines Changed Review Time
S < 100 Quick review
M 100-300 Standard review
L 300-500 Detailed review
XL 500+ Split further

Signs You Need to Split

  • PR touches more than 5 files
  • Multiple unrelated changes bundled together
  • Hard to write a single-sentence summary
  • Reviewer would need significant context

Output Format

## PR Stack for: <Task Summary>

### PR 1: <Title> (Size: S/M/L)
- **Scope**: <files/components affected>
- **Depends on**: None (base)
- **Description**: <what this PR does>
- **Worktree**: `<branch-name>` (`.claude/scripts/worktree-create.sh <name>`)

### PR 2: <Title> (Size: S/M/L)
- **Scope**: <files/components affected>
- **Depends on**: PR 1
- **Description**: <what this PR does>
- **Worktree**: `<branch-name>`

[Continue for additional PRs...]

## Dependency Graph
PR 1 -> PR 2 -> PR 3
           \-> PR 4 (can parallel with PR 3)

## Implementation Order
1. Start with PR 1
2. After PR 1 is approved, start PR 2
3. ...

## Notes
- <any caveats, alternatives, or considerations>
- <potential risks or areas needing clarification>

Read the full file on GitHub · 152 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. today First seen · 152 lines · 13 tokens per session scan A fadb78840ba6

Subscribe to this mod's changes

pr-planner is an agent published in the GitHub repository huggingface/OpenEnv (2,531 stars, last pushed 3d ago), licensed BSD-3-Clause. It adds 13 tokens to every session and 1,058 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 2026-08-31.

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