Haystack
ActiveThe agent-native control layer for code changes
About
Haystack helps engineering teams manage the growing volume of AI-generated pull requests. Coding agents make it much easier to produce code, but they also create a new problem: teams now have more changes to review, many of them larger, more frequent, and harder to trust at a glance. Haystack sits on top of GitHub and acts as the control layer for AI-generated code changes. For every pull request, it looks at the codebase, the diff, the agent trace, the author’s intent, and any verification evidence like tests, logs, commands, or screenshots. Then Haystack decides what should happen next: whether the change can move forward, needs fixes, or should be reviewed by a human. Teams use Haystack to keep code moving without turning review into rubber-stamping. It helps them merge more code, focus human attention on the changes that actually need judgment, and maintain quality as AI-generated work becomes a bigger part of development.
From their website
haystackeditor.com ↗Haystack provides AI-powered code reviews designed to accelerate the path from pull request creation to merging, guiding reviewers through changes in a logical, focused order.
The product functions as an AI-powered code review assistant that analyzes pull requests and guides reviewers through changes in a logical sequence to speed up the review and merge process.
Who it’s for: Development teams and engineering leads looking to accelerate PR reviews and improve review quality
- AI-guided code reviews
- Logical ordering of changes for reviews
- Fast path from PR to merge
- Focuses on keeping reviews fast
- Assists reviewers through changes
Founders · 2
AmazonCofounder of Haystack Software. Experienced with AI and Cloud technologies. Previously worked in the High-Performance Computing division at AWS and received a Master's Degree in Machine Learning from Columbia University
Co-founder of Haystack Software. Enjoys building emulators, video games, and productivity software. Previously was a software engineer at Figma, where I led the multi-edit launch and helped launch Find and Replace, accessibility in FigJam, and more!
Launch
Haystack automates the tedious parts of software development so that engineers can focus on the important stuff!
Haystack is a standalone code editor that lets engineers explore and edit codebases as a 2D canvas graph, with a navigational copilot that suggests and applies edits across files to support large-scale changes. It targets developers working in large codebases and aims to speed up navigating, refactoring, and implementing functional flows.
Formerly “Haystack Software”
Related startups
Delivery Analytics for Software Teams
Code review platform for humans and agents
