Module execute 

Execute use case: prepare a session for agent execution.

Functions

billable_user_turn_count

Count the number of billable user turns in a session — i.e. user messages that were actually initiated by the human, excluding runtime-injected resume messages from child completion, retry, or conclusion-with-options.

consume_pending_conclusion_with_options_resume

evaluate_client_sync

has_pending_conclusion_with_options_resume

has_pending_retry_resume

has_pending_user_message

Whether the session has resumable user work (pending tool response, retry, or last message is from user).

is_billable_user_turn

Returns true when the message represents a billable end-user turn.

is_system_resume_message

Returns true if the message was synthesized by the runtime to resume a suspended root session (child completion, retry, conclusion-with-options).

prepare_execute

Prepare an execute: load session, resolve model/reasoning, validate, update metadata, return outcome.