AI-powered entomology: Lessons from millions of AI code reviews
AI Engineer World's Fair 2025 · 10:21
AI code review and developer tools
Graphite builds a GitHub-integrated platform for software developers to create, review and merge code changes. Its tools combine stacked pull requests, a CLI and VS Code extension with AI reviews, Graphite Chat and a merge queue. Developers can organize work into smaller dependent changes, receive suggested fixes and generate pull-request titles and descriptions. Free personal plans and paid team and enterprise subscriptions serve projects ranging from individual repositories to organizations needing access controls and audit logs.
Founded in 2020 by Merrill Lutsky, Tomas Reimers and Greg Foster, Graphite makes dependencies between code changes part of the review and merge workflow. Its stack-aware merge queue tests combined changes and merges the pull requests in sequence when checks pass. Speculative execution runs checks across multiple stacks in parallel, while dependency-aware bisection isolates failing changes within a batch.
In December 2025, Cursor described Graphite as used by hundreds of thousands of engineers. Graphite was acquired by Cursor in 2026, following an agreement announced in December 2025 that provided for continued independent operation with the same team and product. Cursor’s subsequent acquisition by SpaceX, completed in August 2026, places Graphite within that broader ownership structure.
AI Engineer World's Fair 2025 · 10:21
AI Engineer World's Fair 2025 · 5:45
Affiliations reflect their AIE appearances, not necessarily current employment.
Start here to learn how an analysis of review comments distinguishes useful bug detection from hallucinated, pedantic, or unwelcome feedback.
Tomas ReimersAI Engineer World's Fair 2025
Choose this talk for Reimers’s distinction between the coding inner loop and the outer loop of getting changes safely shipped.
Tomas ReimersAI Engineer World's Fair 2025
Reimers separates bugs a model can reliably identify from feedback developers want to receive. Undocumented team knowledge remains a limitation, while developer votes help evaluate both model and product quality.
Reimers presents Diamond within a workflow that combines contextual review comments, CI integration, merge queues, security safeguards, and suggested fixes.
Affiliations reflect each recorded session, not necessarily current employment.