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Task Planner MCP Server

Bridging AI capabilities with human work structure through the Model Context Protocol ecosystem.

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The Task Planner MCP Server represents a thoughtful approach to a persistent challenge in AI-assisted work: maintaining context, structure, and progress tracking across complex, multi-step projects. Built as part of the Model Context Protocol ecosystem, this lightweight server addresses a fundamental limitation in AI assistant interactions—the tendency for conversations to become unwieldy when tackling large tasks without clear decomposition and progress tracking.

Skills

TypeScriptNode.jsMCP ProtocolZod ValidationJSON Persistencepnpm

Key Deliverables

  • Seven-tool task management system covering full lifecycle
  • Hierarchical task decomposition with parent-child relationships
  • Priority-driven task orchestration and guidance
  • Local-first JSON persistence for data sovereignty
  • Seamless AI assistant integration via MCP
  • Natural language task interpretation and structuring

The Problem

AI Assistants and Task Complexity

AI assistants like Claude excel at responding to well-defined, atomic requests. However, when users present complex, multi-faceted problems, several challenges emerge:

Context diffusion across conversation history buries critical details. Progress becomes opaque without explicit tracking. Users must mentally maintain task hierarchies rather than offloading to a system. Starting new sessions means reconstructing context from scratch. Complex tasks naturally decompose into subtasks, but AI conversations typically remain flat.

Traditional productivity tools (Jira, Asana, Todoist) solve these problems for human workflows but don't integrate seamlessly into AI-assisted work. The Task Planner MCP Server bridges this gap by giving AI assistants native task management capabilities that align with how humans naturally structure work.

Technical Architecture

Simplicity as Design Principle

Model Context Protocol Integration

The Task Planner leverages MCP, Anthropic's standardized protocol for extending AI assistant capabilities. This architecture delivers universal compatibility across Claude Desktop, Cursor IDE, Claude Code CLI, and other MCP-compatible assistants. Stateless interactions mean the AI remains context-free while the MCP server maintains persistent state. Seven composable tools can be orchestrated flexibly based on user intent.

Data Persistence Strategy

Rather than introducing database complexity, the Task Planner uses a local JSON file for persistence. This design choice reflects pragmatic understanding of the target use case: single-user context, low write frequency, simplicity first, and transparency. The JSON structure supports hierarchical relationships through parentId references, enabling unlimited nesting depth without complex graph traversal logic.

Seven Tools for Complete Task Lifecycle

Creation & Decomposition

  • create-task: Initialize tasks with title, description, priority, and optional parent relationship
  • break-down-task: Transform high-level tasks into structured subtask lists in a single operation

Information & State Management

  • list-tasks: View all root-level tasks or filter to subtasks
  • get-task: Retrieve detailed information about individual tasks
  • complete-task: Mark tasks finished, enabling progress tracking
  • update-task: Modify task properties without recreating hierarchies
  • delete-task: Remove tasks and cascade deletion to all subtasks

User Experience

From Conversation to Structure

Natural Language Task Management

The breakthrough comes from how Claude interprets open-ended requests. Users express intent conversationally, and the task structure emerges naturally through dialogue. When users say 'break down vacation planning,' Claude translates this directly to break-down-task with appropriate subtasks. Zero learning curve—users get streamlined task management without cognitive overhead.

Hierarchical Task Decomposition

Complex projects support multiple levels of decomposition:

Launch Product (Root Task)
├── Market Research
│ ├── Competitive analysis
│ ├── Customer interviews
│ └── Pricing strategy
├── Development
│ ├── Backend API
│ ├── Frontend UI
│ └── Integration testing
└── Go-to-Market
├── Marketing collateral
├── Sales training
└── Launch event planning

Priority-Driven Focus

The three-tier priority system (low, medium, high) enables AI assistants to guide users toward high-impact work. Instead of passive list-keeping, task management becomes active work orchestration. When users ask 'what should I work on next?', Claude analyzes the task list considering priorities and dependencies, recommending unblocked high-priority work that informs subsequent tasks.

Product Design Decisions

What Makes This Effective

Persistent External Memory

Claude's context window remains ephemeral within conversations. The Task Planner provides durable external memory surviving across sessions. This mirrors how humans use external systems (notebooks, tools) to augment working memory capacity.

Structured Over Freeform

Structured data enables programmatic querying, dependency reasoning, and progress metrics. The Task Planner enforces just enough structure to unlock these capabilities without over-constraining user flexibility.

Minimal Feature Set

The server resists feature creep. No time tracking, assignees, comments, or attachments. This constraint reduces implementation complexity, keeps AI tool usage straightforward, and leaves room for users to augment with their own workflows.

Local-First Philosophy

Storing data locally eliminates privacy concerns around sensitive task data, works offline without degradation, avoids subscription models, and respects user data sovereignty. This aligns with the broader MCP philosophy of user-controlled AI extensions.

Use Cases

Where Task Planning Shines

Software Development Projects

When developers ask Claude to 'refactor the authentication system,' Task Planner creates a root task, breaks it down into Audit → Design → Implement → Test → Deploy, surfaces the next step as each completes, and if interrupted, enables resuming with 'where did we leave off?'

Content Creation Workflows

Writing technical articles becomes structured with research sources as subtasks, article sections as hierarchical tasks, revision rounds with specific feedback, and publication checklists. Progress is visible and motivating.

Learning Projects

Students learning web development transform overwhelming projects into manageable learning milestones: HTML structure → CSS styling → JavaScript interactivity → Responsive design → Deployment. Each subtask becomes a focused learning session.

Personal Projects

Planning a home renovation mirrors real-world project dependencies (research, contractor selection, permits, execution) while priority flags balance urgent tasks with long-lead items.

Value Proposition

AI Work Amplification

Reduced Cognitive Overhead

Users offload task structure maintenance to the system, freeing mental capacity for creative and analytical thinking. The AI handles decomposition suggestions, progress tracking, and next-step guidance.

Improved AI Collaboration Quality

When AI assistants reference structured task context, responses become targeted and actionable. Instead of generic advice, Claude can say 'since you've completed market research, the next logical step is pricing strategy.'

Project Continuity

Long-running projects benefit from persistent state. Users return after days or weeks, ask 'where are we on the product launch?', and immediately resume productive work rather than reconstructing context.

Flexible Granularity

The system accommodates diverse working styles. Some prefer high-level task lists; others want fine-grained subtask breakdowns. The hierarchical structure supports both, adapting to user preference through conversation.

Technology Stack

Runtime & Language

  • Node.js
  • TypeScript
  • Cross-platform

Build & Dependencies

  • pnpm
  • Fast installs
  • Strict resolution

Protocol & Validation

  • MCP SDK
  • Zod Schema
  • Type safety

Data Persistence

  • JSON storage
  • Local-first
  • File-based

Ecosystem Position

MCP as Extensibility Layer

The Task Planner exists within the broader Model Context Protocol ecosystem, representing a paradigm shift in AI assistant architecture. Rather than monolithic assistants with baked-in capabilities, MCP enables composable functionality where users install only the servers they need. The open protocol allows independent developers to extend AI capabilities without permission. Specialized tools can be optimized for specific use cases rather than trying to be everything to everyone. The Task Planner demonstrates MCP's power through simplicity—delivering substantial user value by filling a precise gap in AI-assisted workflows.

Future Potential

Where This Could Evolve

Workflow Automation

Trigger actions on task state changes—notify on completion, create calendar events for deadlines.

Cross-Session Intelligence

Analyze task completion patterns to suggest optimal breakdown strategies.

Integration Bridges

Sync with external tools (GitHub, Notion) while maintaining local-first defaults.

Team Collaboration

Optional shared task lists for AI-assisted pair programming or project planning.

Temporal Features

Deadlines, time estimates, and scheduling constraints for project timeline management.

Core Principle

Preserve core simplicity while allowing opt-in complexity for users who need it.

Key Takeaways

Structure as AI Enhancement

Rather than attempting to make AI assistants 'smarter' through more parameters or training data, structure provides a scaffold that transforms conversational chaos into organized action.

Design Philosophy

Start with genuine user pain points, not technical possibilities. Design the minimal tool set that unlocks core value. Leverage existing conventions rather than inventing new paradigms. Prioritize conversational ease over feature completeness. Let simplicity be a feature, not a limitation.

The Future of Human-AI Collaboration

As AI assistants become more capable, the bottleneck shifts from what they can understand to how effectively they collaborate with users on sustained work. Simple, focused, well-integrated tools point toward a future where AI assistance feels less like consulting an oracle and more like working with a thoughtful partner who remembers context, tracks progress, and helps maintain forward momentum.

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Location

San Francisco, California, USA

Select a Date

October 2025

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