/**
 * Agent-agnostic injection adapter contract (epic #2098, child #4).
 *
 * The daemon guarantees: one inject() at a time (FIFO), and every inject()
 * call corresponds to a HUMAN Accept press recorded with the relay before the
 * adapter runs (acceptance criterion 3).
 */
export interface AdapterContext {
    repoRoot: string;
    /** Narration hook — daemon log (and optionally a Slack thread). */
    onProgress(line: string): void;
    /** Persisted session/thread id from a previous run, when resuming. */
    resumeSessionId?: string;
    /** Called when the adapter learns its session/thread id (persist for resume). */
    onSessionId?(sessionId: string): void;
}
export interface InjectOutcome {
    /**
     * completed — the session ran the instruction to a final result.
     * handed_off — the instruction was delivered to a human/manual surface
     *              (paste mode); execution is outside the daemon's sight.
     * error      — the adapter failed; summary explains why. The relay ack
     *              still fires (result carried in the ack detail — the
     *              injection_failed enum is a deferred backend follow-up).
     */
    result: 'completed' | 'handed_off' | 'error';
    /** Bounded human-readable outcome for the ack detail + status envelope. */
    summary: string;
}
export interface AgentAdapter {
    readonly id: 'claude-code' | 'codex' | 'paste';
    /** Cheap availability probe — binary/config present, SDK importable. */
    available(ctx: AdapterContext): Promise<boolean>;
    /** Warm/create the session. May no-op; called once before the first inject. */
    start(ctx: AdapterContext): Promise<void>;
    /** Deliver one human-approved instruction. Serialized by the daemon. */
    inject(instruction: string, ctx: AdapterContext): Promise<InjectOutcome>;
    stop(): Promise<void>;
}
/** Bound a summary for ack detail (relay caps detail at 2000 chars). */
export declare function boundSummary(text: string, max?: number): string;
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