> ## Documentation Index
> Fetch the complete documentation index at: https://platform.atlan.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Get an Agent or harness run

> Read one run for an Agent or coding harness.

# Get an Agent or harness run

Use `agent__get_trace` after `agent__list_traces` returns a trace ID.

* Required inputs: `subject_id` and `trace_id`.
* Optional inputs: `session_id` and Gateway's `rationale`.
* Returns: timing, cost, status, and run structure.
* Effect: read only.

The trace must belong to the selected `agent_...` or `harness_...` subject
and be visible to the caller.