/**
* tools/next-task.js
* Tool to find the next task to work on based on dependencies and status
*/
import {
createErrorResponse,
handleApiResult,
withNormalizedProjectRoot
} from '@tm/mcp';
import { z } from 'zod';
import { resolveTag } from '../../../scripts/modules/utils.js';
import { nextTaskDirect } from '../core/task-master-core.js';
import {
resolveComplexityReportPath,
resolveTasksPath
} from '../core/utils/path-utils.js';
/**
* Register the nextTask tool with the MCP server
* @param {Object} server - FastMCP server instance
*/
export function registerNextTaskTool(server) {
server.addTool({
name: 'next_task',
description:
'Find the next task to work on based on dependencies and status',
parameters: z.object({
file: z.string().optional().describe('Absolute path to the tasks file'),
complexityReport: z
.string()
.optional()
.describe(
'Path to the complexity report file (relative to project root or absolute)'
),
projectRoot: z
.string()
.describe('The directory of the project. Must be an absolute path.'),
tag: z.string().optional().describe('Tag context to operate on')
}),
execute: withNormalizedProjectRoot(async (args, { log, session }) => {
try {
log.info(`Finding next task with args: ${JSON.stringify(args)}`);
const resolvedTag = resolveTag({
projectRoot: args.projectRoot,
tag: args.tag
});
// Resolve the path to tasks.json using new path utilities
let tasksJsonPath;
try {
tasksJsonPath = resolveTasksPath(args, session);
} catch (error) {
log.error(`Error finding tasks.json: ${error.message}`);
return createErrorResponse(
`Failed to find tasks.json: ${error.message}`
);
}
// Resolve the path to complexity report (optional)
let complexityReportPath;
try {
complexityReportPath = resolveComplexityReportPath(
{ ...args, tag: resolvedTag },
session
);
} catch (error) {
log.error(`Error finding complexity report: ${error.message}`);
// This is optional, so we don't fail the operation
complexityReportPath = null;
}
const result = await nextTaskDirect(
{
tasksJsonPath: tasksJsonPath,
reportPath: complexityReportPath,
projectRoot: args.projectRoot,
tag: resolvedTag
},
log,
{ session }
);
log.info(`Next task result: ${result.success ? 'found' : 'none'}`);
return handleApiResult({
result,
log: log,
errorPrefix: 'Error finding next task',
projectRoot: args.projectRoot
});
} catch (error) {
log.error(`Error finding next task: ${error.message}`);
return createErrorResponse(error.message);
}
})
});
}