Product

Index. Review. Verify. Learn.

MergeHarbor combines a continuously updated model of your codebase with an agent that investigates each pull request and checks its own work.

1 · Index

A map of your codebase, kept current

When you connect a repository, MergeHarbor parses it into a graph of files, functions, classes, and call relationships, builds a semantic index with plain-language summaries of each file, and builds a fast text-search index. After the first pass, only changed files are processed.

Symbol-level understanding for Go, Python, JavaScript, TypeScript, Java, Rust, Ruby, C#, C, and C++
Large binaries and generated or vendored code are skipped automatically
Reviews start immediately; indexing adds context as it completes

Repositories being indexed with per-repository progress

2 · Review

An agent that investigates like a senior engineer

For each pull request, the reviewer reads the change and then decides what else to read: callers of a modified function, similar code elsewhere, recent history of the file, and your team's rules. New code in the pull request is visible to its tools alongside the indexed codebase.

Follows changes across files and modules, not just the diff
Applies your rules, strictness, and categories
Very large pull requests are reviewed in parts and combined into one summary

Pull request detail with summary, confidence score, findings by file, and review history

3 · Verify

Every finding is challenged before it is posted

An independent verification pass tries to disprove each finding using the same codebase context. Findings that do not hold up are dropped; uncertain ones are posted with lower confidence. Filters for minimum severity and confidence keep reviews focused.

Fewer false positives, so engineers keep reading the comments
Confidence on every finding and a merge-readiness score on every review
Comments similar to ones your team rejected are suppressed

Overview of open critical and major findings across repositories

4 · Learn

Reviews that get closer to your standards over time

Engineers react to comments and reply in the pull request. MergeHarbor turns consistent feedback into proposed rules that an admin approves, and applies rules taught with @mergeharbor remember on the next review.