Notre avis

Analyse l'historique des PRs, l'architecture et l'évolution d'un dépôt GitHub.

Points forts

Fournit une vue d'ensemble rapide des statistiques et des contributeurs
Identifie les PRs les plus significatives (discutées, architecturales, bien documentées)
Permet une plongée en profondeur dans une PR spécifique avec résumé des retours
Révèle l'évolution d'une zone particulière du code grâce au filtrage par chemin

Limites

Dépend de l'outil GitHub CLI (gh) et nécessite une authentification
Limité aux PRs fusionnées, ne couvre pas les branches ou les modifications non fusionnées
L'analyse des thèmes est basée sur les titres des PRs, peut être imprécise

Quand l'utiliser

Utilisez cette compétence pour comprendre rapidement la structure, les contributeurs et les décisions architecturales d'un dépôt que vous découvrez.

Quand l'éviter

Évitez de l'utiliser pour des dépôts avec un historique de PRs très restreint ou pour lesquels vous avez besoin d'une analyse en temps réel non liée aux PRs.

Exemples

Repository overview

Analyze the repository facebook/react and give me an overview including stats, most active directories, top contributors, and recent activity themes.

List recent PRs

Show me the last 20 merged PRs in tensorflow/tensorflow as a table with number, title, author, files changed, comments, and merge date.

Find notable PRs

Find the most educational PRs in vercel/next.js by focusing on those with high comment counts, affecting many directories, or having long descriptions.

name: codebase description: "Understand a GitHub repository by analyzing its PR history, architecture, and evolution patterns." argument-hint: "<owner/repo> [prs|notable|<pr-number>|area:<path>]" allowed-tools: Bash, Read

Codebase

Understand a GitHub repository through its PR history and structure.

Arguments

Parse $ARGUMENTS to determine the command:

<owner/repo> alone → overview
<owner/repo> prs → list PRs
<owner/repo> notable → find high-signal PRs
<owner/repo> <number> → deep dive into PR
<owner/repo> area:<path> → PRs touching a path

Commands

Overview (default)

When only <owner/repo> is provided:

Fetch repo info:

gh repo view <repo> --json description,primaryLanguage,stargazerCount,forkCount

Fetch last 30 merged PRs:

gh pr list -R <repo> --state merged --limit 30 --json number,title,author,files,mergedAt

Analyze and report:
- Repository description and stats
- Most active directories (count file changes by directory)
- Top contributors (count PRs by author)
- Recent activity themes (categorize PR titles)

List PRs

When prs is specified:

gh pr list -R <repo> --state merged --limit 20 --json number,title,author,files,comments,mergedAt

Format as a table:

#     Title                              Author      Files  Comments  Merged
1234  Add user authentication            @alice      12     8         2d ago
1233  Fix memory leak in parser          @bob        3      2         3d ago

Notable PRs

When notable is specified:

gh pr list -R <repo> --state merged --limit 50 --json number,title,author,files,comments,body,mergedAt

Filter and rank by:

Comment count (most discussed)
Files touching 5+ directories (architectural)
Body length > 500 chars (well-documented)

Output the top 10 most educational PRs with brief explanations of why they're notable.

PR Deep Dive

When a PR number is specified:

gh pr view <number> -R <repo> --json title,body,author,files,comments,reviews,mergedAt

Extract and present:

Title and author
Problem: First paragraph of body (usually explains the why)
Key files: List files changed, grouped by directory
Discussion: Summarize review comments, focus on substantive feedback
Outcome: What was decided, any follow-up items mentioned

If the description is minimal, also fetch the diff to understand changes:

gh pr diff <number> -R <repo>

Area Focus

When area:<path> is specified:

gh pr list -R <repo> --state merged --limit 50 --json number,title,author,files,mergedAt

Filter PRs where any file path contains <path>. Show:

PRs that touched that area
When they were merged
What changed

This reveals the evolution of a specific part of the codebase.

Output Guidelines

Use tables for lists of PRs
Use headers to separate sections
Include PR numbers as #1234 for easy reference
For deep dives, quote notable review comments
Keep summaries concise but informative

Analyse de Dépôt GitHub

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