/** The contract text, appended verbatim to every brief the runner composes. */
export declare function summaryContract(): string;
export interface AgentSummary {
    /** The agent's own words, or an output tail when it emitted no block. */
    text: string;
    /** False when no block was found and `text` is a fallback tail. */
    available: boolean;
}
/**
 * The last summary block in the output. Last rather than first for the same
 * reason {@link extractJson} takes the last json block: an agent that echoes
 * the contract back before answering would otherwise have its echo parsed as
 * the answer.
 */
export declare function extractSummary(output: string): string | undefined;
/**
 * The summary for an agent reply, degrading to an output tail when the agent
 * emitted no block. Never throws and never signals failure: callers record
 * what they got and carry on.
 */
export declare function resolveSummary(output: string, tailLimit?: number): AgentSummary;
/**
 * Event payload fields, so every emitter names them the same way. `role` is
 * the job the agent held (`build`, `critic`, `writer`, `author`, `validator`,
 * `reviewer`), not the command it ran.
 *
 * `promptBytes` is deliberate telemetry: brief size is the input to every
 * decision about how much context an agent can be given, and estimating it
 * from spec line counts is guesswork. Recording it per invocation turns that
 * into a measurement after one real run.
 */
export declare function summaryEventData(role: string, prompt: string, summary: AgentSummary): Record<string, unknown>;
/** Single-line form for progress output; the events log keeps the full text. */
export declare function summaryLine(summary: AgentSummary, limit?: number): string;
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