What is pr-description?

A tool for preparing pull-request descriptions on GitHub, where a pull request proposes code changes for review and merging. It reads the project's template and examines the changes and related issue.

Use it to generate or fill a pull-request template from the git diff, project instructions, branch information, and a linked GitHub issue.

It reduces the manual work of assembling a complete pull-request description and helps ensure the proposal matches the project's required format and issue.

pr-description — Skill for Claude Code and Codex by pplancq: A tool for preparing pull-request descriptions on GitHub, where…

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 skills/pplancq/copilot-instructions/pr-description

Any agent

npx skills add pplancq/copilot-instructions --skill pr-description

Clone the repo

git clone --depth 1 https://github.com/pplancq/copilot-instructions

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/pplancq/copilot-instructions/pr-description.svg)](https://agentmods.dev/skills/pplancq/copilot-instructions/pr-description)

Your own site

<a href="https://agentmods.dev/skills/pplancq/copilot-instructions/pr-description"><img src="https://agentmods.dev/badge/skills/pplancq/copilot-instructions/pr-description.svg" alt="Measured on agentmods" height="20"></a>

Per session 84 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 4,504 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 1 finding. 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.

Model	Per session	Once invoked
Fable 5	$0.00084	$0.04504
Opus 5	$0.00042	$0.02252
Sonnet 5	$0.00017	$0.00901
Haiku 4.5	$0.00008	$0.00450

Measured 4d ago against content hash a5234215d27c, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

pr-description scanned grade A with 1 finding 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 4d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -X POST \

.github/skills/pr-description/SKILL.md · 560 lines

How it starts

The opening of the file, as written. The whole thing — 560 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Pull Request Description Generator

Automatically generate comprehensive pull request descriptions that follow the project's PR template (.github/PULL_REQUEST_TEMPLATE.md).

When to Use This Skill

Activate this skill when the user asks to:

"Generate a PR" or "Create a PR"
"Open a pull request"
"Create pull request"
"Generate a PR description"
"Fill out the PR template"
"Write a description for my changes"

Prerequisites

Working git repository with commits on a feature branch
Changes committed to the current branch
Access to the project's .github/PULL_REQUEST_TEMPLATE.md template

Main Branch Detection

The skill needs to identify the main branch to generate accurate diffs. Follow this priority:

User-provided: If the user specifies the main branch name (e.g., "main", "master", "develop"), use it
Project instructions: Check .github/copilot-instructions.md for default branch configuration
Git default: Use git symbolic-ref refs/remotes/origin/HEAD to detect the default branch
Fallback: Default to "main" if detection fails
Ask user: If uncertain, prompt the user to confirm the main branch name

Step-by-Step Workflow

Step 1: Get GitHub Issue Link

If the user hasn't provided a GitHub issue link, ask for it:

Prompt: "What is the GitHub issue link for this PR? (e.g., https://github.com/owner/repo/issues/123 or just #123)"

Accepted formats:

Full URL: https://github.com/owner/repo/issues/123
Short format: #123
Just number: 123

Step 2: Read GitHub Issue

Use the GitHub MCP tools to read the issue content:

# Extract issue number from the link
# Then use GitHub API to read issue details

Extract from the issue:

Title: Use as context for PR title
Description: Understand the problem/feature request
Acceptance criteria: Verify if changes align with expected outcome
Labels: Determine type of change (bug, feature, enhancement)
Related context: Any linked PRs, discussions, or references

Read the full file on GitHub · 560 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.

4d ago First seen · 560 lines · 84 tokens per session scan A a5234215d27c

Subscribe to this mod's changes

pr-description is a skill published in the GitHub repository pplancq/copilot-instructions (4 stars, last pushed 7mo ago), licensed MIT. It adds 84 tokens to every session and 4,504 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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pr-description