import type { SessionMessageEntry } from '@earendil-works/pi-coding-agent';
import type { Owner } from './types.js';
type ToolResult = Extract<SessionMessageEntry['message'], {
    role: 'toolResult';
}>;
export interface TaskFactProjection {
    toolName: string;
    policyVersion: string;
}
/** Installed host code only; run locally without model/network extraction. Return necessary verified business facts, never
 * stringify the result, its arguments, or its private details wholesale. */
export type TaskFactProjector = (result: Readonly<ToolResult>, context: {
    owner: Readonly<Owner>;
    scope: string | null;
    signal?: AbortSignal;
}) => string | undefined | Promise<string | undefined>;
export interface TaskFactPolicy {
    /** Must match the user's separate collection grant. Changes require a new grant. */
    policyVersion: string;
    tools: ReadonlyMap<string, TaskFactProjector>;
}
export declare function isTaskFactProjection(value: unknown): value is TaskFactProjection;
export {};