Every grepture dev session already logged all of its traffic in one place. Now the Sessions list also shows requests, traces, errors, tokens, cost, duration, and source (grepture dev or SDK), filterable by status and source. Inside a session you get summary cards, an error banner listing failed steps, and a Timeline tab with one block per trace that opens straight into the trace view. Live sessions open on the log tail; finished ones on the timeline. The SDK gained sessionId / setSessionId() so agent conversations can be grouped the same way, and a new agent-traces example shows a tool-calling agent with one trace per turn.