experiments

Start Experiment

Start once per request ID; a busy server rejects instead of queueing work.

post/sessions/{session_id}/experiments

Request

session_idstring required

gepa_budget'light' | 'medium' | 'heavy' nullable

max_metric_callsinteger nullable

threadsinteger

reflection_minibatch_sizeinteger

max_candidate_proposalsinteger nullable

validation_rationumber

trace_searchboolean

request_idstring required

Successful Response

object required

Oct 28, 202676f3727ccdcf Revision changes
- warning
  the request property's max was set to 0.50
- warning
  the request property's min was set to 0.10
Oct 28, 2026c248371b9401 Revision changes
- info
  endpoint added