export declare const SESSION_ULTRAPLAN_CUSTOM_TYPE = "session_ultraplan";
export interface UltraplanPhase {
    title: string;
    steps: string[];
}
export interface UltraplanArtifact {
    version: 1;
    plannerMode: "local_subagent";
    plannerAgent: "planner";
    executionState: "plan_only";
    objective: string;
    assumptions: string[];
    constraints: string[];
    phases: UltraplanPhase[];
    risks: string[];
    recommendedExecutionOrder: string[];
    actionableNextSteps: string[];
    createdAt: string;
}
export interface UltraplanRunResult {
    artifact: UltraplanArtifact;
    displayText: string;
    rawPlannerOutput: string;
}
export interface UltraplanApplySelection {
    steps: string[];
    source: "actionable_next_steps" | "first_phase_steps" | "none";
}
export declare function parseUltraplanArtifactData(data: unknown): UltraplanArtifact | undefined;
export declare function parseUltraplanArtifactFromText(text: string, createdAt?: string): UltraplanArtifact;
export declare function selectUltraplanApplySteps(artifact: UltraplanArtifact): UltraplanApplySelection;
export declare function formatUltraplanArtifact(artifact: UltraplanArtifact): string;
export declare function formatUltraplanShowOutput(artifact: UltraplanArtifact | undefined): string;
export declare function buildUltraplanPlannerTask(options: {
    objective: string;
    memoryItems: readonly {
        key: string;
        value: string;
    }[];
    todos: ReadonlyArray<{
        content: string;
        activeForm: string;
        status: string;
    }>;
}): string;
/**
 * Build a planner task for revising an existing Ultraplan artifact.
 * The revision instruction guides how to modify the existing plan.
 */
export declare function buildUltraplanRevisionTask(options: {
    instruction: string;
    existingArtifact: UltraplanArtifact;
    memoryItems: readonly {
        key: string;
        value: string;
    }[];
    todos: ReadonlyArray<{
        content: string;
        activeForm: string;
        status: string;
    }>;
}): string;
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