Agent Activity

Agent Activity is an AI developer tool for macOS that gives Xcode AI agent monitoring in one window, so iOS and macOS developers can watch a coding agent build, test, and fix without leaving their machine. It pulls live agent sessions, build timelines, and test results into a single session timeline that shows each build progression and the fixes applied between runs. The build panel groups compiler errors by file, with every error carrying its source line, so diagnosing a failed iteration does not mean scrolling raw logs. It also captures simulator screenshots and lets you inspect the UI hierarchy tree, and it includes permissions management for deciding which agents and folders are trusted. Everything runs locally: there are no cloud servers and no transcripts leave your Mac, with optional usage analytics only after explicit consent. For developers evaluating where an agent-based workflow actually spends its time, this is the kind of focused, single-purpose utility BestAIFor tracks: it does one job, observing Xcode AI agents, rather than trying to be a full IDE replacement.

Monitoring Xcode AI agents' builds, errors, and test runs locally on macOS