fix: include tagInfo in AI service responses for MCP tools

- Update all core functions that call AI services to extract and return tagInfo
- Update all direct functions to include tagInfo in MCP response data
- Fixes issue where add_task, expand_task, and other AI commands were not including current tag and available tags information
- tagInfo includes currentTag from state.json and availableTags list
- Ensures tagged task lists system information is properly propagated through the full chain: AI service -> core function -> direct function -> MCP client

mcp-server/src/core/direct-functions/add-task.js

@@ -95,6 +95,7 @@ export async function addTaskDirect(args, log, context = {}) {
 		let manualTaskData = null;
 		let newTaskId;
 		let telemetryData;
+		let tagInfo;
 
 		if (isManualCreation) {
 			// Create manual task data object
@@ -129,6 +130,7 @@ export async function addTaskDirect(args, log, context = {}) {
 			);
 			newTaskId = result.newTaskId;
 			telemetryData = result.telemetryData;
+			tagInfo = result.tagInfo;
 		} else {
 			// AI-driven task creation
 			log.info(
@@ -154,6 +156,7 @@ export async function addTaskDirect(args, log, context = {}) {
 			);
 			newTaskId = result.newTaskId;
 			telemetryData = result.telemetryData;
+			tagInfo = result.tagInfo;
 		}
 
 		// Restore normal logging
@@ -164,7 +167,8 @@ export async function addTaskDirect(args, log, context = {}) {
 			data: {
 				taskId: newTaskId,
 				message: `Successfully added new task #${newTaskId}`,
-				telemetryData: telemetryData
+				telemetryData: telemetryData,
+				tagInfo: tagInfo
 			}
 		};
 	} catch (error) {

mcp-server/src/core/direct-functions/analyze-task-complexity.js

@@ -196,7 +196,8 @@ export async function analyzeTaskComplexityDirect(args, log, context = {}) {
 						lowComplexityTasks
 					},
 					fullReport: coreResult.report,
-					telemetryData: coreResult.telemetryData
+					telemetryData: coreResult.telemetryData,
+					tagInfo: coreResult.tagInfo
 				}
 			};
 		} catch (parseError) {

mcp-server/src/core/direct-functions/expand-task.js

@@ -225,7 +225,8 @@ export async function expandTaskDirect(args, log, context = {}) {
 					task: coreResult.task,
 					subtasksAdded,
 					hasExistingSubtasks,
-					telemetryData: coreResult.telemetryData
+					telemetryData: coreResult.telemetryData,
+					tagInfo: coreResult.tagInfo
 				}
 			};
 		} catch (error) {

mcp-server/src/core/direct-functions/parse-prd.js

@@ -170,7 +170,8 @@ export async function parsePRDDirect(args, log, context = {}) {
 				data: {
 					message: successMsg,
 					outputPath: result.tasksPath,
-					telemetryData: result.telemetryData
+					telemetryData: result.telemetryData,
+					tagInfo: result.tagInfo
 				}
 			};
 		} else {

mcp-server/src/core/direct-functions/research.js

@@ -140,7 +140,8 @@ export async function researchDirect(args, log, context = {}) {
 				userPromptTokens: result.userPromptTokens,
 				totalInputTokens: result.totalInputTokens,
 				detailLevel: result.detailLevel,
-				telemetryData: result.telemetryData
+				telemetryData: result.telemetryData,
+				tagInfo: result.tagInfo
 			}
 		};
 	} catch (error) {

mcp-server/src/core/direct-functions/update-subtask-by-id.js

@@ -139,7 +139,8 @@ export async function updateSubtaskByIdDirect(args, log, context = {}) {
 					subtask: coreResult.updatedSubtask,
 					tasksPath,
 					useResearch,
-					telemetryData: coreResult.telemetryData
+					telemetryData: coreResult.telemetryData,
+					tagInfo: coreResult.tagInfo
 				}
 			};
 		} catch (error) {

mcp-server/src/core/direct-functions/update-task-by-id.js

@@ -76,7 +76,7 @@ export async function updateTaskByIdDirect(args, log, context = {}) {
 			} else {
 				// Parse as integer for main task IDs
 				taskId = parseInt(id, 10);
-				if (isNaN(taskId)) {
+				if (Number.isNaN(taskId)) {
 					const errorMessage = `Invalid task ID: ${id}. Task ID must be a positive integer or subtask ID (e.g., "5.2").`;
 					logWrapper.error(errorMessage);
 					return {
@@ -132,7 +132,8 @@ export async function updateTaskByIdDirect(args, log, context = {}) {
 						message: message,
 						taskId: taskId,
 						updated: false,
-						telemetryData: coreResult?.telemetryData
+						telemetryData: coreResult?.telemetryData,
+						tagInfo: coreResult?.tagInfo
 					}
 				};
 			}
@@ -149,7 +150,8 @@ export async function updateTaskByIdDirect(args, log, context = {}) {
 					useResearch: useResearch,
 					updated: true,
 					updatedTask: coreResult.updatedTask,
-					telemetryData: coreResult.telemetryData
+					telemetryData: coreResult.telemetryData,
+					tagInfo: coreResult.tagInfo
 				}
 			};
 		} catch (error) {

mcp-server/src/core/direct-functions/update-tasks.js

@@ -90,7 +90,8 @@ export async function updateTasksDirect(args, log, context = {}) {
 					message: `Successfully updated ${result.updatedTasks.length} tasks.`,
 					tasksPath: tasksJsonPath,
 					updatedCount: result.updatedTasks.length,
-					telemetryData: result.telemetryData
+					telemetryData: result.telemetryData,
+					tagInfo: result.tagInfo
 				}
 			};
 		} else {