Gantt Planner MCP Server

Interactive Gantt chart with task dependencies, critical path analysis, and SVG timeline visualization.

Features

• Automatic Task Scheduling - Compute project schedules from task durations and dependencies using topological sort
• Critical Path Analysis - Identify the longest chain of dependent tasks to find true project completion date
• Dependency Management - Define complex task relationships with automatic date calculation
• Task Assignment - Assign team members to tasks and track task ownership
• Circular Dependency Detection - Automatically detect and report circular dependencies in task graphs
• Interactive UI - Visual Gantt chart with drag-and-drop task management and real-time schedule updates

Installation

npm install @gongrzhe/server-gantt-planner

Usage

As a CLI

npx @gongrzhe/server-gantt-planner

Claude Desktop Configuration

{
  "mcpServers": {
    "gantt-planner": {
      "command": "npx",
      "args": ["-y", "@gongrzhe/server-gantt-planner"]
    }
  }
}

Claude Code Configuration

claude mcp add gantt-planner -- npx -y @gongrzhe/server-gantt-planner

Tools

compute-schedule

Computes the project schedule based on tasks with durations and dependencies.

Input:

• tasks (array) - List of tasks with:
  • id (string) - Unique task identifier
  • name (string) - Task name
  • durationDays (number) - Duration in days
  • dependsOn (array, optional) - IDs of tasks this depends on
  • assignee (string, optional) - Person assigned to the task
  • color (string, optional) - Custom color for the task bar (hex)
• startDate (string) - Project start date (YYYY-MM-DD)

Output:

• tasks - Scheduled tasks with computed start/end dates
• totalDays - Total project duration in days
• startDate - Project start date
• endDate - Project end date
• criticalPath - Array of task IDs representing the critical path
• hasCircularDeps - Whether circular dependencies were detected
• errors (optional) - Array of error messages if any

add-task

Creates a new task with a unique ID.

Input:

• name (string) - Task name
• durationDays (number) - Duration in days
• dependsOn (array, optional) - IDs of tasks this depends on
• assignee (string, optional) - Person assigned to the task

Output:

• task - The created task object with generated ID

Example Prompt

Plan a project with the following tasks:
- Discovery: 5 days
- Wireframes: 3 days (after Discovery)
- Design: 5 days (after Wireframes)
- Dev: 8 days (after Design)
- QA: 3 days (after Dev)

License

MIT