import { AttentionReport, AgentTool } from '../types.js';
export declare class AttentionHeatmap {
    private brain;
    constructor();
    /**
     * Compute attention for a given decision. Inputs:
     *   - decisionText: the AI output we're attributing
     *   - candidateMemoryIds: memories that were visible to the agent
     */
    compute(opts: {
        decisionText: string;
        candidateMemoryIds: string[];
        agentTool: AgentTool;
    }): Promise<AttentionReport>;
    /** Text-based heatmap rendered as a simple ASCII bar chart. */
    renderText(report: AttentionReport): string;
    private genId;
    private similarity;
    private tokenSet;
    private explain;
}
export declare function getAttentionHeatmap(): AttentionHeatmap;
export declare function resetAttentionHeatmapForTests(): void;
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