refactor(expand): Align expand-task with unified AI service
Refactored the `expandTask` feature (`scripts/modules/task-manager/expand-task.js`) and related components (`commands.js`, `mcp-server/src/tools/expand-task.js`, `mcp-server/src/core/direct-functions/expand-task.js`) to integrate with the unified AI service layer (`ai-services-unified.js`) and configuration management (`config-manager.js`). The refactor involved: - Removing direct AI client calls and configuration fetching from `expand-task.js`. - Attempting to use `generateObjectService` for structured subtask generation. This failed due to provider-specific errors (Perplexity internal errors, Anthropic schema translation issues). - Reverting the core AI interaction to use `generateTextService`, asking the LLM to format its response as JSON containing a "subtasks" array. - Re-implementing manual JSON parsing and Zod validation (`parseSubtasksFromText`) to handle the text response reliably. - Updating prompt generation functions (`generateMainSystemPrompt`, `generateMainUserPrompt`, `generateResearchUserPrompt`) to request the correct JSON object structure within the text response. - Ensuring the `expandTaskDirect` function handles pre-checks (force flag, task status) and correctly passes the `session` context and logger wrapper to the core `expandTask` function. - Correcting duplicate imports in `commands.js`. - Validating the refactored feature works correctly via both CLI (`task-master expand --id <id>`) and MCP (`expand_task` tool) for main and research roles. This aligns the task expansion feature with the new architecture while using the more robust text generation approach due to current limitations with structured output services. Closes subtask 61.37.
This commit is contained in:
Eyal Toledano
@@ -77,6 +77,7 @@ import {
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getAvailableModelsList,
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setModel
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} from './task-manager/models.js'; // Import new core functions
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import { findProjectRoot } from './utils.js';
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/**
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* Configure and register CLI commands
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@@ -643,95 +644,76 @@ function registerCommands(programInstance) {
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// expand command
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programInstance
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.command('expand')
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.description('Break down tasks into detailed subtasks')
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.option('-f, --file <file>', 'Path to the tasks file', 'tasks/tasks.json')
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.option('-i, --id <id>', 'Task ID to expand')
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.option('-a, --all', 'Expand all tasks')
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.description('Expand a task into subtasks using AI')
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.option('-i, --id <id>', 'ID of the task to expand')
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.option(
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'-a, --all',
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'Expand all pending tasks based on complexity analysis'
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)
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.option(
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'-n, --num <number>',
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'Number of subtasks to generate (default from config)',
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'5' // Set a simple string default here
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'Number of subtasks to generate (uses complexity analysis by default if available)'
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)
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.option(
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'--research',
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'Enable Perplexity AI for research-backed subtask generation'
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'-r, --research',
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'Enable research-backed generation (e.g., using Perplexity)',
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false
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)
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.option('-p, --prompt <text>', 'Additional context for subtask generation')
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.option('-f, --force', 'Force expansion even if subtasks exist', false) // Ensure force option exists
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.option(
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'-p, --prompt <text>',
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'Additional context to guide subtask generation'
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)
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.option(
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'--force',
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'Force regeneration of subtasks for tasks that already have them'
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)
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'--file <file>',
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'Path to the tasks file (relative to project root)',
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'tasks/tasks.json'
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) // Allow file override
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.action(async (options) => {
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const idArg = options.id;
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// Get the actual default if the user didn't provide --num
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const numSubtasks =
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options.num === '5'
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? getDefaultSubtasks(null)
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: parseInt(options.num, 10);
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const useResearch = options.research || false;
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const additionalContext = options.prompt || '';
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const forceFlag = options.force || false;
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const tasksPath = options.file || 'tasks/tasks.json';
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const projectRoot = findProjectRoot();
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if (!projectRoot) {
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console.error(chalk.red('Error: Could not find project root.'));
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process.exit(1);
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}
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const tasksPath = path.resolve(projectRoot, options.file); // Resolve tasks path
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if (options.all) {
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// --- Handle expand --all ---
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// This currently calls expandAllTasks. If expandAllTasks internally calls
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// the refactored expandTask, it needs to be updated to pass the empty context {}.
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// For now, we assume expandAllTasks needs its own refactor (Subtask 61.38).
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// We'll add a placeholder log here.
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console.log(
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chalk.blue(`Expanding all tasks with ${numSubtasks} subtasks each...`)
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chalk.blue(
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'Expanding all pending tasks... (Requires expand-all-tasks.js refactor)'
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)
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);
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if (useResearch) {
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console.log(
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chalk.blue(
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'Using Perplexity AI for research-backed subtask generation'
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)
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);
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} else {
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console.log(
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chalk.yellow('Research-backed subtask generation disabled')
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// Placeholder: await expandAllTasks(tasksPath, options.num, options.research, options.prompt, options.force, {});
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} else if (options.id) {
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// --- Handle expand --id <id> ---
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if (!options.id) {
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console.error(
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chalk.red('Error: Task ID is required unless using --all.')
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);
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process.exit(1);
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}
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if (additionalContext) {
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console.log(chalk.blue(`Additional context: "${additionalContext}"`));
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}
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await expandAllTasks(
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tasksPath,
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numSubtasks,
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useResearch,
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additionalContext,
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forceFlag
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);
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} else if (idArg) {
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console.log(
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chalk.blue(`Expanding task ${idArg} with ${numSubtasks} subtasks...`)
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);
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if (useResearch) {
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console.log(
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chalk.blue(
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'Using Perplexity AI for research-backed subtask generation'
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)
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);
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} else {
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console.log(
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chalk.yellow('Research-backed subtask generation disabled')
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);
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}
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if (additionalContext) {
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console.log(chalk.blue(`Additional context: "${additionalContext}"`));
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}
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console.log(chalk.blue(`Expanding task ${options.id}...`));
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// Call the refactored expandTask function
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await expandTask(
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tasksPath,
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idArg,
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numSubtasks,
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useResearch,
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additionalContext
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options.id,
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options.num, // Pass num (core function handles default)
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options.research,
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options.prompt,
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// Pass empty context for CLI calls
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{}
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// Note: The 'force' flag is now primarily handled by the Direct Function Wrapper
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// based on pre-checks, but the core function no longer explicitly needs it.
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);
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} else {
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console.error(
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chalk.red(
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'Error: Please specify a task ID with --id=<id> or use --all to expand all tasks.'
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)
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chalk.red('Error: You must specify either a task ID (--id) or --all.')
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);
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programInstance.help(); // Show help
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}
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});
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