Question 1

What is Arbor?

Accepted Answer

Arbor is a pull request review companion. It walks changed code paths and tells solo devs, small teams, and AI agents what might break before merge.

Question 2

Can AI coding agents use Arbor?

Accepted Answer

Yes. Arbor produces a compact PR brief with risky paths, likely side effects, unknown edges, and the first test to write so agents can keep edits scoped.

Question 3

Does Arbor work with GitHub pull requests?

Accepted Answer

Yes. Arbor installs as a GitHub App, analyzes pull requests, and comments with the breakage path reviewers should inspect.