session_idstring required
statusstring required
pending, running, completed, failed, cancelled, cancelling
iterationinteger
Current or final iteration number
n_trialsinteger
Trials completed in current iteration
max_trialsinteger
Configured trial budget per iteration
best_scorenumber nullable
Best score observed in current/final iteration
best_paramsobject nullable
Best parameter set observed in current/final iteration
judge_scorenumber nullable
Latest judge score, when available
termination_reasonstring nullable
approved, max_iterations, cancelled, error, or null while running
elapsed_secondsinteger required
Total elapsed time in seconds
can_cancelboolean required
Whether refine can be cancelled
error_messagestring nullable
Failure reason for terminal failed refine sessions.
created_atstring required
updated_atstring required