import { type MutationHint } from "../chat/types.js";
import { type DrizzleExecutor } from "../drizzle.js";
/**
 * Grants a secret to an eligible channel through agentSecretChannelAssignments after requiring assignSecrets permission.
 * The assignment, audit entry, and sync event commit together so the resulting credential exposure is never silent or partially reported.
 */
export declare function agentSecretAttachToChannel(executor: DrizzleExecutor, input: {
    actorUserId: string;
    channelId: string;
    secretId: string;
}): Promise<MutationHint | undefined>;
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