Enum RoundBoundary 

pub enum RoundBoundary {
    ToolResultsCommitted,
    AssistantMessageCommitted,
}

The per-turn steering seam, whole: the trait a host implements and every type its signatures make that host name.

Re-exported rather than wrapped, under the rule stated on CancellationToken — a mentra type basis’s surface asks a caller to write is a name basis re-exports, or the caller pins mentra in their own manifest to spell it. And like the token, a strategy is an identity rather than a value: TurnOptions::with_round_strategy hands mentra the caller’s own Arc, so a basis-owned mirror of RoundDecision would be a translation layer with opinions of its own — the opposite of a seam.

The set is exactly what implementing costs. RoundStrategy is the trait (spelled with async_trait, which basis already re-exports); RoundContext and RoundBoundary are its question; RoundDecision, RoundAdjustment, ReasoningChange and RoundToolResult are its vocabulary for answering. The last three are here because the vocabulary’s own signatures demand them: RoundDecision::inject takes ContentBlocks, RoundAdjustment::with_model a ModelInfo, and ReasoningChange::Set a ReasoningOptions — whose effort field an Effort converts into, so switching effort mid-run never names mentra’s own level enum. Identifies which round boundary invoked a RoundStrategy.

Variants

ToolResultsCommitted

A tool round’s results were just committed to the transcript. The run is about to advance to the next round.

AssistantMessageCommitted

A tool-free assistant message was just committed. The run is about to return it as the final message unless the strategy injects another round.

Trait Implementations

impl Clone for RoundBoundary

fn clone(&self) -> RoundBoundary

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for RoundBoundary

impl Debug for RoundBoundary

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Eq for RoundBoundary

impl PartialEq for RoundBoundary

fn eq(&self, other: &RoundBoundary) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for RoundBoundary