/**
 * update_task tool — Update a task's status, priority, or append to the agent log.
 *
 * Agents use this to:
 * - Move a task from "claimed" to "in_progress"
 * - Append progress updates to the Agent Log section
 * - Change priority or type if they discover new information
 * - Set a task to "failed" or "blocked" if something goes wrong
 *
 * For marking a task as completed with deliverables, use complete_task instead.
 */
import { z } from "zod";
import { Vault } from "../vault.js";
import { Config } from "../config.js";
import { TaskPriority, TaskType } from "../task-schema.js";
export declare const updateTaskSchema: {
    task_id: z.ZodString;
    status: z.ZodOptional<z.ZodEnum<{
        pending: "pending";
        in_progress: "in_progress";
        blocked: "blocked";
        cancelled: "cancelled";
        needs_review: "needs_review";
        revision_requested: "revision_requested";
    }>>;
    priority: z.ZodOptional<z.ZodEnum<{
        critical: "critical";
        high: "high";
        medium: "medium";
        low: "low";
    }>>;
    type: z.ZodOptional<z.ZodEnum<{
        code: "code";
        research: "research";
        writing: "writing";
        maintenance: "maintenance";
        project: "project";
        other: "other";
    }>>;
    assignee: z.ZodOptional<z.ZodString>;
    log_entry: z.ZodOptional<z.ZodString>;
    scope: z.ZodOptional<z.ZodArray<z.ZodString>>;
    depends_on: z.ZodOptional<z.ZodArray<z.ZodString>>;
};
export declare const updateTaskHandler: (vault: Vault, config: Config) => (input: {
    task_id: string;
    status?: "pending" | "in_progress" | "blocked" | "cancelled" | "needs_review" | "revision_requested";
    priority?: TaskPriority;
    type?: TaskType;
    assignee?: string;
    log_entry?: string;
    scope?: string[];
    depends_on?: string[];
}) => Promise<{
    content: {
        type: "text";
        text: string;
    }[];
    isError?: boolean;
}>;
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