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skill Claude Code CX Codex Cursor GitHub Copilot

review-pr — Claude Code skill: PR review and setup

This skill reviews a PR or branch through a code knowledge graph, showing risk, affected flows, and test gaps. Use it when a diff needs structural context.

Install into Claude Code · Skills CLI (Vercel) All methods and platforms ↓ 
npx skills add tirth8205/code-review-graph --skill review-pr -a claude-code
Open on GitHub

What review-pr does

The skill reviews every commit in a pull request or branch against its base branch. It identifies changed files, risk-scored functions, missing tests, and affected flows across the branch. The output includes a summary, overall risk, blast radius, test coverage, file-level concerns, missing tests, and recommendations.

It uses graph tools such as get_minimal_context_tool, detect_changes_tool, query_graph_tool, and review-context queries. For high-risk functions, it checks callers and tests, then flags public API changes when callers were not updated. If the graph is not ready, the workflow runs build_or_update_graph_tool() before continuing.

The review scenario uses main as its base and can account for master. Check the base branch before running it, because that choice controls the diff and impact analysis.

What it helps with

  • review a PR against its base branch
  • spot high-risk changed functions
  • trace the blast radius of a diff
  • find missing tests for changed code
  • flag public API changes with stale callers

Example prompts for the agent

  • Review `<PR number or branch name>` against `main` and produce the structured PR review.
  • Analyze `<PR number or branch name>`, then inspect callers and tests for every high-risk function.
  • Compare the current branch with `main`, report affected flows and missing tests, and update the graph if it is not ready.

How to install review-pr

1Skills CLI (Vercel)

npx skills add tirth8205/code-review-graph --skill review-pr -a claude-code

2Manually: put the files in place

~/.claude/skills/review-pr/SKILL.md

Copy the whole skill folder; for one project use .claude/skills/review-pr/

From the same set7

The whole set →
build-graph tirth8205 Builds or updates a repository knowledge graph for code review. Use it during first setup, after a branch switch, or following a large refactor. Claude Code CX Codex Cursor +1 1,300installs review-delta tirth8205 This skill reviews changes since the last commit and maps their blast radius. Use it for focused code review without loading the whole project. Claude Code CX Codex Cursor +1 1,200installs review-changes tirth8205 Reviews a change set through a knowledge graph, scoring risk and tracing impact. Use it to inspect changed functions, affected flows, and missing tests. Claude Code CX Codex Cursor +1 1,100installs refactor-safely tirth8205 Plans a refactor from a dependency graph, lists edits before a rename and checks the impact radius before large changes. Claude Code CX Codex Cursor +1 1,100installs explore-codebase tirth8205 Guides coding agents through repository structure using the code-review-graph MCP knowledge graph under tight token budgets. Claude Code CX Codex Cursor +1 1,100installs debug-issue tirth8205 This skill traces bugs through a code graph before source inspection, then checks call paths and change impact. Use it when an issue needs a narrower debugging scope. Claude Code CX Codex Cursor +1 1,000installs

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Questions about review-pr

How do I install review-pr in Claude Code?

Run npx skills add tirth8205/code-review-graph --skill review-pr -a claude-code, then run npx skills add tirth8205/code-review-graph --skill review-pr -a claude-code again. The skill file is at ~/.claude/skills/review-pr/SKILL.md.

What does review-pr do?

It reviews a PR or branch with a code knowledge graph, scores changed functions for risk, checks callers and tests, and produces a structured review with blast-radius analysis.

What happens when the code graph is not ready?

The workflow calls build_or_update_graph_tool() and continues with the change analysis.

Source text

SKILL.md · MIT 
---
name: review-pr
description: Review a PR or branch diff using the knowledge graph for full structural context. Outputs a structured review with blast-radius analysis.
argument-hint: "[PR number or branch name]"
---

# Review PR

Review all commits of a pull request or branch against its base branch.

## Steps

1. Identify the changes. With a branch name run `git diff --name-only main...<branch>`; otherwise diff the current branch against `main` (or `master`). Use that ref as `base` below.
2. Call `get_minimal_context_tool(task="review PR", base="main")`. If it returns `status: not_ready`, call `build_or_update_graph_tool()` and continue.
3. Call `detect_changes_tool(base="main", detail_level="minimal")` for risk-scored changed functions, test gaps and affected flows across the whole branch.
4. For high-risk functions call `query_graph_tool(pattern="callers_of", target="<function>")` and `query_graph_tool(pattern="tests_for", target="<function>")`. Flag public API changes whose callers were not updated.
5. Call `get_review_context_tool(base="main")` for source snippets, or `get_impact_radius_tool(base="main")` for the full dependent list, only when step 3 leaves a high-risk item unclear.
6. Read the changed source of the highest-impact files first. Do not load whole files unless the change needs it.

## Output

```
## PR Review: <title>

### Summary
<1-3 sentences>

### Risk
- Overall: Low / Medium / High
- Blast radius: <n> files, <m> functions
- Test coverage: <covered> of <changed> changed functions

### Files
#### <path>
- Changes: <what>
- Impact: <who depends on it>
- Issues: <bugs, style, concerns>

### Missing Tests
- <function> in <file>

### Recommendations
1. <action>
```

## Tips

- Use `semantic_search_nodes_tool` to find related code the PR may have missed.

© tirth8205 · MIT · tirth8205/code-review-graph

See also

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