AWS re:Invent 2025 - Accelerate development velocity with better code reviews (DVT344)

Accelerating Development Velocity with AI-Powered Code Reviews

The Need for a New Code Review Platform

• Traditional code review processes are no longer keeping up with the rapid pace of software development enabled by AI-powered tools.
• Engineering teams are drowning in pull requests, unable to find enough time to review the increasing volume of code changes.
• The new bottleneck is no longer writing the code, but reviewing it, as AI-assisted development has dramatically increased developer productivity.
• Existing AI models like GPT-3 are not sufficient for effective code review, as they are trained to generate code quickly but struggle with understanding, validating, and providing meaningful feedback.

Introducing Graphite: An AI-Powered Code Review Platform

• Graphite is a code review platform built specifically for the era of AI-driven software development.
• Key features:
  • AI review agent that scans pull requests in seconds, identifying bugs, security vulnerabilities, and other issues.
  • Unified workflow management, showing developers exactly which pull requests need their review.
  • Intelligent self-healing CI, with the AI agent suggesting fixes for failing tests and automatically resolving merge conflicts.
  • Productivity tracking and analytics to measure the impact of the platform.

Graphite's Approach to AI-Powered Code Review

• Graphite's AI agent is more effective than human reviewers, with 55% of its comments leading to actual code changes, compared to 49% for humans.
• The platform integrates the AI agent directly into the pull request workflow, allowing developers to collaborate with the agent in real-time to understand changes, get suggestions, and apply fixes.
• Graphite has been designed as a comprehensive platform, not just a standalone AI tool, to transform the entire code review process and unlock the full potential of AI-assisted development.

Real-World Impact and Enterprise Adoption

• Graphite has delivered significant results for its customers:
  • Shopify saw a 33% increase in pull requests merged per developer after adopting Graphite.
  • Asana shipped 21% more lines of code per engineer.
• Graphite is trusted by leading companies across industries, including Shopify, Snowflake, Robinhood, and Duolingo, among others.
• The platform has enabled these enterprises to dramatically improve developer productivity and shipping velocity, by saving hundreds of engineering hours that would have been spent on manual code reviews.

Key Takeaways

1. AI-powered development tools are flooding engineering teams with more code than they can safely review using traditional methods.
2. Existing AI models are not sufficient for effective code review, as they are trained to generate code quickly but struggle with understanding and validating it.
3. Graphite is a comprehensive AI-powered code review platform that integrates directly into the pull request workflow, enabling faster, more accurate code reviews.
4. Graphite has delivered measurable improvements in developer productivity and shipping velocity for its enterprise customers, with results like a 33% increase in pull requests merged per developer.
5. Graphite is trusted by leading companies across industries, demonstrating the real-world impact of AI-powered code review in the era of accelerated software development.