the whole tree
Every agent and the subagents it spawns, on one graph. See who kicked off what, and what each is running now.
watch your
agents work.
Claude Code writes a JSONL log for every session. zoetrope reads it and lays the session out as a graph: which agents ran, and what each one is doing. Watch a live session, or replay a finished one.
reads the JSONL Claude Code already writes · runs fully local.
live tool activity
See each tool call as an agent makes it, and whether it passed or failed.
time-travel any session
Scrub back, pause, jump between prompts, or snap back to live. The timeline is spaced by how busy the session was, not by the clock.
full provenance
Click any agent to see why it ran: the prompt that spawned it, and the reasoning behind it.
the whole session · overview
One agent fans out to four subagents and a review workflow. The timeline fills as it goes — a ✗ marks the test run that failed before it was fixed.
following the work · live camera
Hand the camera to the action (f) and it glides to whichever agent just did something, at a readable zoom. This is what watching a live session looks like.
using it · pan, zoom, inspect, scrub
Click an agent for its provenance — the prompt that spawned it, the reasoning, every tool it ran. Then drag the scrubber to travel back through the session.
The same engine compiles to WebAssembly —replay this exact session in your browser, no install.
~/code/my-app $ zoe█