Interactive demo · no sign-inSample people, visits and results are fictional. Real public checks ↗
WhyThread · explore before you connect

Understand what happens when agents use your tools.

Follow tool activity, inspect the evidence and find what deserves attention. Start with your own tools, or explore the sample workspace below.
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Already using MCP?

Capture the next call from Claude Code with one terminal command. Tool metadata stays on your computer.

Set up local capture →

Bring the evidence you have.

Review LangSmith or Langfuse trace metadata, or connect an MCP to inspect its tool definitions.

Explore the sample · Northstar shop · fictional activity
A place to start

A stock lookup hits an error. What happens next?

A recorded timeout is followed by an inferred retry and an alternative product. The source doesn't include the person's final answer. Open the visit and inspect each step.

Follow the visits

What were they trying to do?

Find something in stockFind a product, check availability and look for alternatives.Explore →Check an orderLook up a recorded delivery update.Explore →

Follow someone over time

Maya returns on another day. Compare the earlier evidence with the later visit, without filling in the conversation between them.

Follow Maya's journey →