import { type DrizzleExecutor } from "../drizzle.js";
import { type MutationHint } from "../chat/types.js";
/**
 * Inserts the messages notice that a steering message reached the running agent, at the point in the transcript where it landed, and links it to its agentTurns row.
 * The steering message itself stays where it was sent so nothing a reader is looking at moves; this separate notice is what
 * answers "when did the agent actually take it", carrying the message's id, sender, and text so it reads on its own and can
 * later link back to the original. The steered turn's `assistantMessageId` is the claim: it is the one output that turn will
 * ever have, so filling it exactly once is what keeps a repeated Rig event from announcing the same steering twice.
 */
export declare function agentTurnSteeringApply(executor: DrizzleExecutor, input: {
    agentUserId: string;
    steeringUserMessageId: string;
}): Promise<{
    hint: MutationHint;
} | undefined>;
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