abtop
A terminal monitor written in Rust (MIT licence), modelled on htop, that lists every coding agent session running on the machine: Claude Code and Codex CLI fully supported, OpenCode at a basic level. For each session it shows tokens used, how full the context window is, usage limits and the ports opened by servers the agent started and then forgot. It only reads local files and process state: no key, no account.
Strengths
- Every Claude Code and Codex CLI session on the machine in one view, with tokens, context and limits
- Spots ports left open by servers an agent started
- Read-only, no key and no account: it reads local files and processes
Limitations
- It observes, it does not steer: no way to assign a task or stop an agent from the screen
- Only basic support for OpenCode, which requires sqlite3 installed
- Its JSON snapshots hold project context: treat them as private data
Best for
- Keeping an eye on five parallel sessions without hopping between windows
- Finding the ghost dev server holding a port after a session ended