LangGraph on Harper

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Runtime config

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Trace Viewer

A read-only view over the checkpoint history — every run is already a full execution trace in the checkpoints table. Pick a graph and thread to inspect the per-thread checkpoint chain. Paused (interrupted) checkpoints are highlighted.

Runs issue #3

Live run list + SSE event stream lands in a follow-up. For now drive runs via POST /AgentRun/<graph>/runs from the terminal and use the timeline below.

Conversation timeline

Renders each checkpoint's messages as chat bubbles by role (you / assistant / tool), with tool calls in expandable cards and the raw checkpoint metadata behind a View raw toggle. Supply a run_id to gate the inline Resume form on the latest interrupted checkpoint (only fires when the run is awaiting_input).

Tools available to this graph

Expand to load the tool catalog.