TraceFlow

TraceFlow turns a raw Anthropic API messages array into a scannable, color-coded timeline — blue user turns, green assistant messages with their inline tool-call name and input, and orange tool results. A summary bar shows total messages, tool_use call count, and an estimated token count, so you can see at a glance why an agent called the wrong tool. It runs entirely client-side with no backend and no API key — paste JSON, click once, read the trace. Built on Base44 as a companion debugger to the Claude Agent SDK.