review-diff

review-diff is a cursor rule for Cursor from gokulkrishh/.cursor. It costs 0 tokens per session (600 once invoked), scanned A, original, MIT.

A code-review prompt for examining a branch or set of Git changes for performance, design, errors, edge cases, and bugs.

In plain words
What is it for?
Use it when reviewing a proposed change and producing actionable findings about code quality, architecture, performance, and failure handling.
Why use it?
It gives reviewers a broad checklist so problems such as inefficient operations, weak validation, and runtime failures are less likely to be overlooked.

Cursor rule for Cursor

Written for Cursor: a Cursor rule (.mdc).

Good fit Use it when reviewing a proposed change and producing actionable findings about code quality, architecture, performance, and failure handling.

Compare 6 cursor rules from other repositories ↓
Install with agentmods
npx agentmods add rules/gokulkrishh/.cursor/review-diff
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.

Clone the repo
git clone --depth 1 https://github.com/gokulkrishh/.cursor

Made for: Cursor.

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 review-diff

README.md
[![agentmods](https://agentmods.dev/badge/rules/gokulkrishh/.cursor/review-diff/github.svg)](https://agentmods.dev/rules/gokulkrishh/.cursor/review-diff)
Your own site
<a href="https://agentmods.dev/rules/gokulkrishh/.cursor/review-diff"><img src="https://agentmods.dev/badge/rules/gokulkrishh/.cursor/review-diff/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 review-diff

Your own site · 80×15
<a href="https://agentmods.dev/rules/gokulkrishh/.cursor/review-diff"><img src="https://agentmods.dev/badge/rules/gokulkrishh/.cursor/review-diff.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Nothing until a file matches its globs; then the whole rule loads.
When invoked 600 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 $0.00000 $0.00600
Opus 5.5 $0.00000 $0.00240
Sonnet 5.5 $0.00000 $0.00120
Haiku 4.5 $0.00000 $0.00060

Measured 1mo ago against content hash 0e726b811b68, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

review-diff 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 1mo 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.

rules/review-diff.mdc · 83 lines

How it starts

The opening of the file, as written. The whole thing — 83 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Code Review Prompt for Cursor

You are an expert code reviewer. Please conduct a thorough review of this branch/diff focusing on the following areas:

Performance Analysis

  • Identify potential performance bottlenecks or inefficiencies
  • Look for unnecessary loops, redundant operations, or expensive function calls
  • Check for proper use of data structures and algorithms
  • Analyze memory usage patterns and potential leaks
  • Review database queries for optimization opportunities

Design Patterns & Architecture

  • Check for proper separation of concerns and modularity
  • Review naming conventions and code readability
  • Identify opportunities for refactoring or pattern improvements

Error Handling & Edge Cases

  • Verify comprehensive error handling and graceful failure modes
  • Check for proper input validation and sanitization
  • Look for unhandled exceptions or error conditions
  • Assess logging and debugging capabilities
  • Review boundary conditions and edge case handling

Bug Detection

  • Identify potential runtime errors, null pointer exceptions, or type mismatches
  • Look for race conditions, deadlocks, or concurrency issues
  • Check for off-by-one errors, infinite loops, or logic flaws
  • Verify proper resource management (file handles, connections, etc.)
  • Review state management and data consistency

UI/UX & Accessibility (if applicable)

  • Verify semantic HTML structure and proper use of ARIA attributes
  • Ensure keyboard navigation works properly (tab order, focus indicators)
  • Validate screen reader compatibility and alt text for images
  • Review responsive design and mobile accessibility
  • Check for proper form labels and error messaging
  • Assess loading states, animations, and motion sensitivity considerations
  • Verify text scaling works up to 200% without loss of functionality
  • Review heading hierarchy and document structure

Security & Best Practices

  • Check for security vulnerabilities (injection attacks, XSS, etc.)
  • Verify proper authentication and authorization
  • Review sensitive data handling and encryption
  • Assess compliance with coding standards and best practices

Read the full file on GitHub · 83 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. 1mo ago First seen · 83 lines · 0 tokens per session scan A 0e726b811b68

Subscribe to this mod's changes

review-diff is a cursor rule published in the GitHub repository gokulkrishh/.cursor (3 stars, last pushed 8mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 600 tokens. 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.