export type TodoNodeStatus = "backlog" | "in_progress" | "blocked" | "gated" | "done";
export interface TodoNode {
    id: string;
    title: string;
    section: string;
    source_line: number;
    depends_on: string[];
    status: TodoNodeStatus;
}
export interface TodoStateFile {
    version: 1;
    updated_at: string;
    source_todo_path: string;
    order: string[];
    nodes: Record<string, TodoNode>;
}
export interface TodoTransitionResult {
    ok: boolean;
    path: string;
    todo_path: string;
    node_id?: string;
    from?: TodoNodeStatus;
    to?: TodoNodeStatus;
    unresolved_dependencies?: string[];
    allowed?: TodoNodeStatus[];
    error?: string;
}
export declare function getTodoStatePath(): string;
export declare function syncTodoState(todoContent?: string): {
    state: TodoStateFile;
    path: string;
};
export declare function readTodoState(): TodoStateFile;
export declare function transitionTodoNode(nodeId: string, targetStatus: TodoNodeStatus): TodoTransitionResult;
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