import type { Config } from '../config/schema.js';
import type { WorkContextDocument, WorkContextSnapshot, WorkUnderstandingEvidenceItem, WorkUnderstandingInvestigation, WorkUnderstandingInvestigationBudget } from './types.js';
export declare const DEFAULT_WORK_INVESTIGATION_BUDGET: WorkUnderstandingInvestigationBudget;
type InvestigationAction = {
    tool: 'read_text_excerpt';
    relativePath: string;
    reason: string;
} | {
    tool: 'search_authorized_text';
    query: string;
    reason: string;
} | {
    tool: 'finish';
    reason: string;
};
export interface InvestigationDecision {
    hypotheses: string[];
    questions: string[];
    evidenceSummaries: Array<{
        evidenceId: string;
        observation: string;
    }>;
    action: InvestigationAction;
}
interface RuntimeEvidence {
    record: WorkUnderstandingEvidenceItem;
    content: string;
    modifiedAt?: number;
}
export interface WorkInvestigationResult {
    investigation: WorkUnderstandingInvestigation;
    evidence: WorkUnderstandingEvidenceItem[];
    documents: WorkContextDocument[];
    degraded: boolean;
}
declare function chooseAction(input: {
    config: Config;
    snapshot: WorkContextSnapshot;
    runtimeEvidence: RuntimeEvidence[];
    toolCallsRemaining: number;
    contentCharsRemaining: number;
    signal?: AbortSignal;
}): Promise<InvestigationDecision | null>;
export declare function investigateWorkContext(input: {
    config: Config;
    snapshot: WorkContextSnapshot;
    rootPath: string;
    discoveryRunId: string;
    projectId: string;
    sourceGrantId?: string;
    budget?: Partial<WorkUnderstandingInvestigationBudget>;
    decisionProvider?: typeof chooseAction;
    signal?: AbortSignal;
}): Promise<WorkInvestigationResult>;
export {};