PR Description Writer

PR Description Writer is a skill for Claude Code, Codex from Notysoty/openagentskills. It costs 19 tokens per session (1,437 once invoked), scanned A, original, MIT.

A writing aid that turns a code change summary or difference between versions into a pull request description.

In plain words
What is it for?
Use it when opening a pull request or documenting a large code change for later reference.
Why use it?
It gives reviewers the context they need about the change, its purpose, testing steps, risks, and edge cases.

Skill for Claude CodeCodex

Which agent this was written for is unclear — built for cline. Also seen: mentions Claude Code; mentions Codex; built for cline.

Good fit Use it when opening a pull request or documenting a large code change for later reference.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/notysoty/openagentskills/pr-description-writer
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.

Any agent
npx skills add Notysoty/openagentskills --skill pr-description-writer
Clone the repo
git clone --depth 1 https://github.com/Notysoty/openagentskills

Made for: Claude Code, Codex.

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 Description Writer

README.md
[![agentmods](https://agentmods.dev/badge/skills/notysoty/openagentskills/pr-description-writer/github.svg)](https://agentmods.dev/skills/notysoty/openagentskills/pr-description-writer)
Your own site
<a href="https://agentmods.dev/skills/notysoty/openagentskills/pr-description-writer"><img src="https://agentmods.dev/badge/skills/notysoty/openagentskills/pr-description-writer/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.

agentmods 80×15 button for PR Description Writer

Your own site · 80×15
<a href="https://agentmods.dev/skills/notysoty/openagentskills/pr-description-writer"><img src="https://agentmods.dev/badge/skills/notysoty/openagentskills/pr-description-writer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 19 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,437 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 $0.00019 $0.01437
Opus 5 $0.00010 $0.00718
Sonnet 5 $0.00004 $0.00287
Haiku 4.5 $0.00002 $0.00144

Measured 9d ago against content hash 9eb339461602, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

PR Description Writer 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 9d 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.

skills/pr-description-writer/SKILL.md · 144 lines

How it starts

The opening of the file, as written. The whole thing — 144 lines — stays where its author put it; the contents beside it link to each section on GitHub.

PR Description Writer

What this skill does

This skill directs the agent to read a diff or a plain summary of changes and produce a complete, well-structured pull request description. It covers what changed, why it changed, how reviewers can test it, and what edge cases or risks to be aware of — so reviewers can do their job without having to chase you for context.

Use this when you're about to open a PR and want a description that will actually get reviewed instead of skipped, or when you need to document a large change for future reference.

How to use

Claude Code / Cline

Copy this file to .agents/skills/pr-description-writer/SKILL.md in your project root.

Then ask:

  • "Write a PR description for these changes using the PR Description Writer skill."
  • "Use the PR Description Writer skill. Here's the diff."

You can provide:

  • A git diff main...HEAD or git diff output
  • A bullet list of what changed (if the diff is too large to paste)
  • The GitHub issue number this PR closes (optional)
  • Any context about why the change was needed

Cursor / Codex

Paste the instructions from the section below into your session, then provide your diff or change summary.

The Prompt / Instructions for the Agent

When asked to write a pull request description, follow these steps:

1. Understand the change

Read the diff or change list and identify:

  • What files / modules were touched?
  • Is this a new feature, a bug fix, a refactor, a performance improvement, or a configuration change?
  • What was the motivation? (If not stated, ask — or make a reasonable inference and flag it for the author to verify)
  • Are there any breaking changes or behavioral differences a user or caller would notice?

2. Write the PR description

Produce a description with these exact sections:

## Summary 1-3 bullet points. Each bullet is one complete thought. Focus on the what and the why, not the implementation details. Example:

  • Adds rate limiting to the /auth/login endpoint to prevent brute-force attacks
  • Limits failed login attempts to 5 per minute per IP, after which requests return 429

Read the full file on GitHub · 144 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. 9d ago First seen · 144 lines · 19 tokens per session scan A 9eb339461602

Subscribe to this mod's changes

PR Description Writer is a skill published in the GitHub repository Notysoty/openagentskills (9 stars, last pushed 26d ago), licensed MIT. It adds 19 tokens to every session and 1,437 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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