Pull request review
A second reviewer that writes nothing back
Marlow reads a pull request against your repository's own rules and posts its verdict as one comment. It never pushes a commit.
Comment on the pull request/marlow review
Reads the diff alongside your CLAUDE.md, AGENTS.md and LEARNINGS.md, so the change is held to your conventions rather than generic ones.
Posts one comment: no blocking concerns, or changes requested, with the reasons.
Runs your own security scanner over the branch if the project has one, and separates findings in files the change touched from the rest.
Costs a quarter of a run.
Pushes a commit, opens a branch or merges. It reviews from a throwaway clone.
Takes a request from someone without write access. On a public repository, a stranger's comment starts nothing.
Reviews a pull request nobody asked about, unless you turn on reviewing every pull request as it opens. Drafts and bot authors are skipped even then.
A project with a GitHub repository connected.
Your conventions written down, in CLAUDE.md or AGENTS.md, if you want them enforced.
Optionally, a scanner command that writes a SARIF report.