# Aggregate AI Code Reviewers

Use Haystack as the single view over CodeRabbit, GitHub Copilot, Greptile, and every other AI reviewer commenting on your PRs.

## The Problem

Teams now run several AI reviewers at once, and each posts its own comment threads with its own signal-to-noise ratio. Reviewers burn time reconciling overlapping, contradictory bot feedback — or start ignoring all of it.

## How Haystack Solves It

- **One view**: Haystack ingests feedback from 10+ AI reviewers alongside its own analysis and presents a single triaged picture per PR.
- **Deduplicated and weighed**: overlapping findings are merged; noise doesn't block a merge, real issues do.
- **Coexists, not replaces**: keep the reviewers you already pay for — Haystack sits on top and decides what actually needs a human.

## Setup

```bash
npx -y @haystackeditor/cli@latest setup --repo owner/name --yes
```

No reviewer-specific configuration needed — Haystack picks up their PR comments automatically.

## Related

- [Reduce code review time](/use-cases/reduce-code-review-time)
- [Catch bugs before merge](/use-cases/catch-bugs-before-merge)