90 lines
2.4 KiB
JavaScript
90 lines
2.4 KiB
JavaScript
/**
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* tools/expand-task.js
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* Tool to expand a task into subtasks
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*/
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import { z } from 'zod';
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import {
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handleApiResult,
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createErrorResponse,
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withNormalizedProjectRoot
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} from './utils.js';
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import { expandTaskDirect } from '../core/task-master-core.js';
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import { findTasksJsonPath } from '../core/utils/path-utils.js';
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/**
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* Register the expand-task tool with the MCP server
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* @param {Object} server - FastMCP server instance
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*/
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export function registerExpandTaskTool(server) {
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server.addTool({
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name: 'expand_task',
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description: 'Expand a task into subtasks for detailed implementation',
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parameters: z.object({
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id: z.string().describe('ID of task to expand'),
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num: z.string().optional().describe('Number of subtasks to generate'),
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research: z
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.boolean()
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.optional()
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.default(false)
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.describe('Use research role for generation'),
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prompt: z
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.string()
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.optional()
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.describe('Additional context for subtask generation'),
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file: z
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.string()
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.optional()
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.describe(
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'Path to the tasks file relative to project root (e.g., tasks/tasks.json)'
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),
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projectRoot: z
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.string()
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.describe('The directory of the project. Must be an absolute path.'),
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force: z
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.boolean()
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.optional()
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.default(false)
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.describe('Force expansion even if subtasks exist')
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}),
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execute: withNormalizedProjectRoot(async (args, { log, session }) => {
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try {
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log.info(`Starting expand-task with args: ${JSON.stringify(args)}`);
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// Use args.projectRoot directly (guaranteed by withNormalizedProjectRoot)
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let tasksJsonPath;
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try {
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tasksJsonPath = findTasksJsonPath(
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{ projectRoot: args.projectRoot, file: args.file },
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log
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);
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} catch (error) {
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log.error(`Error finding tasks.json: ${error.message}`);
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return createErrorResponse(
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`Failed to find tasks.json: ${error.message}`
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);
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}
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const result = await expandTaskDirect(
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{
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tasksJsonPath: tasksJsonPath,
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id: args.id,
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num: args.num,
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research: args.research,
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prompt: args.prompt,
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force: args.force,
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projectRoot: args.projectRoot
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},
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log,
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{ session }
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);
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return handleApiResult(result, log, 'Error expanding task');
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} catch (error) {
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log.error(`Error in expand-task tool: ${error.message}`);
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return createErrorResponse(error.message);
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}
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})
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});
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}
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