agtop

Matt Brassey·MBrassey.agtop

Process monitor for AI coding agents (Claude Code, Codex, Aider, Gemini, Goose).

agtop is a top-style ratatui TUI that walks /proc on Linux (sysinfo on Windows / macOS / *BSD) plus the on-disk session transcripts of Claude Code, OpenAI Codex, Block Goose, Aider, and Google Gemini. For each detected agent it reports CPU, RSS, status, current tool / task, in-flight subagents, cumulative token usage, estimated cost, context-window fill, loaded skills, and a live transcript preview. On Windows, writable-FD enumeration uses NtQuerySystemInformation + DuplicateHandle to surface what files each agent has open. Per-process IO byte counters come from sysinfo's disk_usage().