Struct CloseRule 

pub struct CloseRule { /* private fields */ }

Implementations

impl CloseRule

pub fn for_agent(agent: AgentKind) -> Self

The close rule for a specific agent.

Selects the marker predicate by agent: Claude keeps [crate::agent_result::event_is_top_level_result_marker]; Antigravity uses [crate::agent_result::event_is_top_level_antigravity_result_marker] (round-3 B1). Without the agent-aware predicate, an Antigravity stream’s event: "result" object never sets marker_seen, stdin is never released, and every real stage idle-times-out before its capture is read.

Vacuously-satisfied drain arms (Antigravity, B1). The background_tasks / open_tasks arms read type: "system" subtypes (background_tasks_changed, task_started, task_notification, …) that the Antigravity CLI never emits — its event-key schema has no type field at all. An Antigravity rule therefore stays at NeverAnnounced / empty forever and CloseRule::should_close reduces to the marker predicate. This is STATED, not silently inherited: it is a documented property of the Antigravity transport, asserted by the close-rule tests (close_rule_antigravity_*).

pub fn observe(&mut self, line: &str)

Fold one raw stdout line into the rule.

pub fn has_open_background_tasks(&self) -> bool

Whether any background task is known to be outstanding.

The idle-timeout arm consults this: a parent that is correctly quiet while a subagent works is not idle, and killing it is the defect this predicate exists to prevent.

pub fn should_close(&self) -> bool

Whether both arms hold and the child’s stdin may be released.

Trait Implementations

impl Default for CloseRule

fn default() -> Self

Returns the “default value” for a type.