Trace viewer

Early Access. Commands and behavior can change between releases.

/trace opens a viewer over the session logs on your machine: Architech sessions and, if you have them, sessions of other coding agents (Claude Code, Codex, and the open-source coding agents Pi and Oh My Pi). Pick a session and step through it, or see it as a waterfall of real durations. It is read-only: it never re-runs, steers, deletes or writes to a session file, so it’s safe to open on a live run. It works in orchestrator, agent and Prime modes.

architech        # then type: /trace

The viewer keeps its own index for browsing; it never writes to session files. For framework sessions that recorded only context snapshots, not a full transcript, it shows what was recorded and doesn’t invent tool timings or a full trajectory.

Screens

Screen	Shows
Sessions	Every session found in the supported Architech, Pi, Oh My Pi, Claude Code and Codex log locations and formats, one row each: coding agent (the `HARNESS` column), model, duration, turns, context used, sub-agent count. Press `2` for lanes (every session as a bar starting at t=0) and `1` to come back.
Trajectory (`1`)	The selected session step by step: messages, tool calls, sub-agent dispatches. What your agents did, not what they said they did.
Waterfall (`2`)	The same session as timed spans, with real durations per step: what ran long, and what waited on what.
Inspect	One span in full; `←`/`→` (or `h`/`l`) step to the previous / next span without leaving.

Keys

Key	Does
`↑` `↓` · `j` `k`	Move. `PgUp`/`PgDn` jump ten; `g`/`G` top / bottom.
`Enter`	Open the selected session or span.
`→` · `←`	On Sessions: fold a session’s sub-agent children out and back.
`1` · `2`	Swap between the dense view and the timing view of whatever you are looking at.
`+` · `-`	Zoom the time axis on the lanes view.
`/`	Filter the list you are on (not on Waterfall or Inspect).
`Tab`	On Sessions: change the sort. On Trajectory: fold rows.
`a` `h` `p` `o` `c` `x`	On Sessions: show all coding agents, or only Architech, Pi, Oh My Pi, Claude Code or Codex.
`f`	On Trajectory or Waterfall: follow a session that is still running, live.
`c`	Inside a session: copy the selected span as JSON.
`Esc`	Back one level (on Sessions, clears the filter first). Never quits.
`?`	Key help.
`q`	Close the viewer.

Get started · Early Access

Architech

Configuration

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Cloud

Reference

Screens

Keys

​Screens

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Screens

Keys