export type SignalSource = 'planner' | 'fact_extractor' | 'classifier' | 'session_state' | 'runtime_state' | 'artifact_graph' | 'user_explicit' | 'regex';
export declare function normalizeSignalSource(value: string): SignalSource;
export interface Signal {
    kind: string;
    value?: string;
    source: SignalSource;
}
export interface ContextHint {
    kind: string;
    body: string;
}
export interface TurnPolicy {
    signals: Signal[];
    visibleTools: string[];
    forbiddenTools: string[];
    forbiddenToolPolicies: Record<string, string>;
    requiredTools: string[];
    contextHints: ContextHint[];
    appliedPolicies: string[];
    rationale: string;
}
export declare function emptyTurnPolicy(): TurnPolicy;
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