export declare function hashObservedContent(v: unknown): string;
export type CommitObservationStatus = 'not_observed' | 'observed_match' | 'observed_drift' | 'observed_token_match';
export type CommitHostAttestation = 'absent' | 'host_attested_committed' | 'host_attested_refused' | 'conflict';
export type CommitObservationBlast = {
    compared: 'content' | 'token';
    decision?: string;
    execution_action?: string;
    decision_id?: string | null;
    unavailable?: boolean;
    cause?: string;
};
export type CommitObservation = {
    status: CommitObservationStatus;
    observed_fp?: string;
    expected_fp?: string;
    token?: string;
    observed_at: string;
    host_attestation?: CommitHostAttestation;
    blast?: CommitObservationBlast;
};
export type ObserveCommitCall = {
    arguments?: unknown;
    artifacts?: ReadonlyArray<{
        id?: string;
        after?: unknown;
    }>;
    filesTouched?: string[];
};
export type ObserveCommitPreflight = (artifacts: Array<{
    id?: string;
    type?: string;
    before?: unknown;
    after?: unknown;
}>) => Promise<{
    ok: true;
    response: unknown;
} | {
    ok: false;
    cause: string;
}>;
export type ObserveCommitInput = {
    enabled: boolean;
    call: ObserveCommitCall;
    result?: unknown;
    now: string;
    preflightOnObserved?: ObserveCommitPreflight;
};
/** T3 measurement. Never throws. Does not write. Does not flip enforced. */
export declare function observeCommit(input: ObserveCommitInput): Promise<CommitObservation>;
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