Enum RoundDecision 

#[non_exhaustive]
pub enum RoundDecision {
    Continue(RoundAdjustment),
    Inject {
        content: Vec<ContentBlock>,
        adjust: RoundAdjustment,
    },
    Stop,
}

The decision a RoundStrategy returns at a round boundary.

Construct one with RoundDecision::proceed, RoundDecision::inject, or RoundDecision::stop for the common cases, or the variants directly to carry a RoundAdjustment.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Continue(RoundAdjustment)

Proceed with the default flow. At RoundBoundary::AssistantMessageCommitted this accepts the terminal message and lets the run return; at RoundBoundary::ToolResultsCommitted it advances to the next round. Any carried RoundAdjustment applies to subsequent rounds.

Inject

Do not end the run: append content as a corrective user turn and run another round. At RoundBoundary::AssistantMessageCommitted this prevents the run from returning. Any carried RoundAdjustment applies to that round.

Fields

content: Vec<ContentBlock>

Corrective content appended to the transcript as a user message.

adjust: RoundAdjustment

Model/reasoning override applied before the injected round.

Stop

End the run gracefully at this boundary, committing the transcript exactly as RunOptions::stop does. A stop request asserts nothing about whether the run produced a valid answer.

Implementations

impl RoundDecision

pub fn proceed() -> Self

Continue with no model/reasoning change.

pub fn inject(content: impl Into<Vec<ContentBlock>>) -> Self

Inject corrective context and run another round, with no adjustment.

pub fn stop() -> Self

Request a graceful stop.