@mseep/atlas-mcp-server
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A Model Context Protocol (MCP) server for ATLAS, a Neo4j-powered task management system for LLM Agents - implementing a three-tier architecture (Projects, Tasks, Knowledge) to manage complex workflows.
172 lines (171 loc) • 8.35 kB
JavaScript
import { TaskService } from "../../../services/neo4j/taskService.js";
import { ProjectService } from "../../../services/neo4j/projectService.js";
import { BaseErrorCode, McpError, ProjectErrorCode } from "../../../types/errors.js";
import { ResponseFormat, createToolResponse } from "../../../types/mcp.js";
import { logger } from "../../../utils/logger.js";
import { AtlasTaskCreateSchema } from "./types.js";
import { formatTaskCreateResponse } from "./responseFormat.js";
export const atlasCreateTask = async (input, context) => {
let validatedInput;
try {
// Parse and validate input against schema
validatedInput = AtlasTaskCreateSchema.parse(input);
// Handle single vs bulk task creation based on mode
if (validatedInput.mode === 'bulk') {
// Execute bulk creation operation
logger.info("Initializing multiple tasks", {
count: validatedInput.tasks.length,
requestId: context.requestContext?.requestId
});
const results = {
success: true,
message: `Successfully created ${validatedInput.tasks.length} tasks`,
created: [],
errors: []
};
// Process each task sequentially to maintain consistency
for (let i = 0; i < validatedInput.tasks.length; i++) {
const taskData = validatedInput.tasks[i];
try {
// Verify project exists before creating task
const projectExists = await ProjectService.getProjectById(taskData.projectId);
if (!projectExists) {
throw new McpError(ProjectErrorCode.PROJECT_NOT_FOUND, `Project with ID ${taskData.projectId} not found`, { projectId: taskData.projectId });
}
const createdTask = await TaskService.createTask({
projectId: taskData.projectId,
title: taskData.title,
description: taskData.description,
priority: taskData.priority || 'medium',
status: taskData.status || 'todo',
assignedTo: taskData.assignedTo,
urls: taskData.urls || [],
tags: taskData.tags || [],
completionRequirements: taskData.completionRequirements,
outputFormat: taskData.outputFormat,
taskType: taskData.taskType,
id: taskData.id // Use client-provided ID if available
});
results.created.push(createdTask);
// Create dependency relationships if specified
if (taskData.dependencies && taskData.dependencies.length > 0) {
for (const dependencyId of taskData.dependencies) {
try {
await TaskService.addTaskDependency(createdTask.id, dependencyId);
}
catch (error) {
logger.warn(`Failed to create dependency for task ${createdTask.id} to ${dependencyId}`, {
error,
taskId: createdTask.id,
dependencyId
});
}
}
}
}
catch (error) {
results.success = false;
results.errors.push({
index: i,
task: taskData,
error: {
code: error instanceof McpError ? error.code : BaseErrorCode.INTERNAL_ERROR,
message: error instanceof Error ? error.message : 'Unknown error',
details: error instanceof McpError ? error.details : undefined
}
});
}
}
if (results.errors.length > 0) {
results.message = `Created ${results.created.length} of ${validatedInput.tasks.length} tasks with ${results.errors.length} errors`;
}
logger.info("Bulk task initialization completed", {
successCount: results.created.length,
errorCount: results.errors.length,
taskIds: results.created.map(t => t.id),
requestId: context.requestContext?.requestId
});
// Conditionally format response
if (validatedInput.responseFormat === ResponseFormat.JSON) {
return createToolResponse(JSON.stringify(results, null, 2));
}
else {
return formatTaskCreateResponse(results);
}
}
else {
// Process single task creation
const { mode, id, projectId, title, description, priority, status, assignedTo, urls, tags, completionRequirements, dependencies, outputFormat, taskType } = validatedInput;
logger.info("Initializing new task", {
title,
projectId,
requestId: context.requestContext?.requestId
});
// Verify project exists
const projectExists = await ProjectService.getProjectById(projectId);
if (!projectExists) {
throw new McpError(ProjectErrorCode.PROJECT_NOT_FOUND, `Project with ID ${projectId} not found`, { projectId });
}
const task = await TaskService.createTask({
id, // Use client-provided ID if available
projectId,
title,
description,
priority: priority || 'medium',
status: status || 'todo',
assignedTo,
urls: urls || [],
tags: tags || [],
completionRequirements,
outputFormat,
taskType
});
// Create dependency relationships if specified
if (dependencies && dependencies.length > 0) {
for (const dependencyId of dependencies) {
try {
await TaskService.addTaskDependency(task.id, dependencyId);
}
catch (error) {
logger.warn(`Failed to create dependency for task ${task.id} to ${dependencyId}`, {
error,
taskId: task.id,
dependencyId
});
}
}
}
logger.info("Task initialized successfully", {
taskId: task.id,
projectId,
requestId: context.requestContext?.requestId
});
// Conditionally format response
if (validatedInput.responseFormat === ResponseFormat.JSON) {
return createToolResponse(JSON.stringify(task, null, 2));
}
else {
return formatTaskCreateResponse(task);
}
}
}
catch (error) {
// Handle specific error cases
if (error instanceof McpError) {
throw error;
}
logger.error("Failed to initialize task(s)", {
error,
requestId: context.requestContext?.requestId
});
// Handle duplicate name error specifically
if (error instanceof Error && error.message.includes('duplicate')) {
throw new McpError(ProjectErrorCode.DUPLICATE_NAME, `A task with this title already exists in the project`, {
title: validatedInput?.mode === 'single' ? validatedInput?.title : validatedInput?.tasks?.[0]?.title,
projectId: validatedInput?.mode === 'single' ? validatedInput?.projectId : validatedInput?.tasks?.[0]?.projectId
});
}
// Convert other errors to McpError
throw new McpError(BaseErrorCode.INTERNAL_ERROR, `Error creating task(s): ${error instanceof Error ? error.message : 'Unknown error'}`);
}
};