import type { ZodTypeAny } from 'zod';
import type { Capability, ToolDeclaration, PromptSection, CapabilityAction } from './index.js';
export interface ExtractionCapabilityConfig {
    schema: ZodTypeAny;
    /** Fields that must be present to consider extraction complete. */
    requiredFields?: string[];
}
/**
 * Agent-level extraction: collects structured data across turns using a
 * single `submit_extracted_data` tool. Distinct from FlowCapability's
 * per-node extraction — this is for standalone agents, not flow nodes.
 */
export declare class ExtractionCapability implements Capability {
    private schema;
    private requiredFields;
    private collectedData;
    constructor(config: ExtractionCapabilityConfig);
    getTools(): ToolDeclaration[];
    getPromptSections(): PromptSection[];
    processToolResult(toolName: string, args: unknown, result: unknown): CapabilityAction | null;
    /** Read the data collected so far. */
    get data(): Record<string, unknown>;
    private getMissingFields;
}