/**
 * observeBrain — SDK tool wrapping the observeBrain write path from memory/retrieval.
 *
 * Unified BRAIN write path that persists agent observations into brain_observations.
 * Auto-classifies observation type from text when not provided.
 *
 * @arch SDK Tool (Category B) — pure-functional, contracts-typed, no I/O at top level
 * @task T10070
 * @epic T9835
 */
import type { ObserveBrainInput, ObserveBrainOutput } from '@cleocode/contracts';
import type { RegisteredSdkTool } from '../task-tools/sdk-tool.js';
/** Registered SDK tool for saving BRAIN observations. */
export declare const observeBrain: RegisteredSdkTool<ObserveBrainInput, Promise<ObserveBrainOutput>>;
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