/**
 * Answer assembly with TYPED finality (W-C1): a harness's `final` message
 * (claude/cursor terminal `result`, codex's finalized last agent message) IS
 * the answer, verbatim — mid-run narration never bleeds into it. The joined
 * narration remains the fallback for adapters/versions without the marker.
 */
export declare class AnswerAssembly {
    private readonly parts;
    private finalText?;
    /**
     * MACHINE-truth final, decoupled from the DISPLAY final (codex #19816 /
     * QA-009). A codex constrained WorkReport route pre-unwraps its final
     * message's DISPLAY text to the `output` (so the answer bubble + the app's
     * twin-removal see the unwrapped output, not raw JSON) and carries the raw
     * `{work_report, output}` envelope on `payload.work_report_envelope`. The
     * orchestrator un-nests machine truth via `machineText()`, so the display
     * unwrap never breaks the envelope parse; adapters that leave the raw envelope
     * IN the final text (claude) never set this, so `machineText()` === `text()`.
     */
    private machineFinalText?;
    /** Feed one already-sanitized harness event; non-answer events are ignored. */
    observe(ev: {
        type: string;
        text?: string;
        final?: boolean;
        payload?: Record<string, unknown>;
    }): void;
    /** Whether a typed final answer has been accepted. */
    hasFinal(): boolean;
    /** The assembled answer for DISPLAY: the typed final verbatim, else joined
     * narration. For codex constrained routes this is the UNWRAPPED output. */
    text(): string;
    /** The assembled answer for MACHINE consumption (the WorkReport un-nest): the
     * raw envelope when the adapter pre-unwrapped the display copy, else identical
     * to `text()`. The orchestrator passes THIS to `unwrapWorkReportEnvelope`. */
    machineText(): string;
}
/**
 * A3 deliverable hygiene — the ONE policy owner of "which try output may become
 * answer material". An ERRORED attempt that never accepted a typed final has no
 * deliverable: its joined narration (and any adapter prose that slipped through
 * as messages) must never become answer.md/report — the typed error/status
 * events remain the failure's surface, and D-16 `deliverable_present` stays the
 * one owner of "delivered". An errored attempt that DID accept a typed final
 * (e.g. a post-final budget stop) keeps that final verbatim.
 */
export declare function acceptedTryOutput(answer: AnswerAssembly, attemptErrored: boolean): string;
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