logPhase

logPhase is a macOS app that analyses a pull request and presents it as user journey flow diagrams linked to the real code, with a code city view of the repository. Reviews run through the user's own Claude Code.

logPhase is a desktop app for macOS built around code comprehension. Instead of reading a diff line by line, a reviewer pastes a pull request link and gets the change back as a small set of user journeys: flow diagrams that show what the change does from a user's point of view, with the actual code attached to every step. The app supports Java, Kotlin, C#, Python and TypeScript, each read by its own parser. In practice the workflow starts with a link. The app clones the repository, analyses both sides of the change, and then starts the reviewer's own Claude Code installation to write the review. The homepage demonstrates this with a pull request against the dotnet/eShop repository, where two changed files touched three journeys. Selecting a step opens the method behind it, the condition that decides the branch, and the exact lines the pull request altered. A call graph lists every method on a journey's path, and each method's panel shows which other journeys depend on it, which helps gauge blast radius. Reviewers can ask questions about a step, split a step into the smaller steps its code contains, or request a plainer label. Files open read-only with go to definition and a caller list. The Canvas view draws a whole repository as a city: districts are services, towers are files, and each journey a change touches is lit as a trail. The layout stays stable between runs, so the map remains familiar over time. Analysis for Java, Kotlin, Python and TypeScript works offline, while C# needs Microsoft's .NET SDK, fetched once. Review text goes to Anthropic through the user's Claude Code, and GitHub tokens stay in the macOS keychain. The tool suits developers and tech leads who review AI-generated changes or inherit unfamiliar services. Compared with general AI review bots that comment on diffs, it centres on visual comprehension and traceability back to real code, and it depends on the user already having Claude Code.