# DevPlan MCP Server
[](https://opensource.org/licenses/MIT)
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[](#tools)
**Transform ideas into executable development plans** — an MCP server that brings the [ClaudeCode-DevPlanBuilder](https://github.com/mmorris35/ClaudeCode-DevPlanBuilder) methodology to Claude Code.
> **The Problem**: AI coding assistants often lose context, skip steps, or produce inconsistent code across sessions.
>
> **The Solution**: DevPlan creates detailed, Haiku-executable development plans with built-in validation, lessons learned, and issue remediation workflows.
## Key Features
| Feature | Description |
|---------|-------------|
| **Haiku-Executable Plans** | Plans so detailed that Claude Haiku can execute them mechanically |
| **Built-in Validation** | Validates plans are complete before execution begins |
| **Real-Time Progress Tracking** | Integrates with Claude Code's Task tools for live visibility |
| **Lessons Learned** | Captures issues from verification and injects them into future plans |
| **Issue Remediation** | Converts GitHub issues directly into remediation tasks |
| **Executor & Verifier Agents** | Auto-generates specialized agents with task tracking built-in |
## Install
```bash
claude mcp add devplan --transport sse https://mcp.devplanmcp.store/sse --scope user
```
Or add to `~/.claude.json` under the `mcpServers` key:
```json
{
"mcpServers": {
"devplan": {
"type": "sse",
"url": "https://mcp.devplanmcp.store/sse"
}
}
}
```
### Update Existing Installation
If you already have DevPlan installed, remove from both scopes and re-add:
```bash
claude mcp remove devplan --scope project; claude mcp remove devplan --scope user; claude mcp add devplan --transport sse https://mcp.devplanmcp.store/sse --scope user
```
## Quick Start
```
You: "Use devplan_start to help me build a CLI tool for managing dotfiles"
```
That's it. DevPlan will guide Claude through the entire process.
## The DevPlan Workflow
DevPlan uses a **scaffold → enhance → validate** workflow that ensures every plan is Haiku-executable before implementation begins.
```mermaid
flowchart LR
subgraph Planning["📋 Planning"]
A[Interview] --> B[Brief]
B --> C[Generate Scaffold]
end
subgraph Enhancement["✨ Enhancement"]
C --> D[Enhance with Code]
D --> E{Validate}
E -->|Fail| D
E -->|Pass| F[Ready]
end
subgraph Execution["⚡ Execution"]
F --> G[Haiku Executes]
G --> H[Sonnet Verifies]
end
subgraph Learning["🧠 Learning"]
H -->|issues| I[Capture Lessons]
I -->|improve| C
end
style E fill:#fff3e0,stroke:#f57c00
style F fill:#c8e6c9,stroke:#2e7d32
style I fill:#e3f2fd,stroke:#1565c0
```
### How It Works
1. **Interview** → DevPlan asks questions to understand your project
2. **Brief** → Creates a structured PROJECT_BRIEF.md with requirements
3. **Generate Scaffold** → `devplan_generate_plan` creates a starting template
4. **Enhance with Code** → Claude (Opus/Sonnet) fills in complete, copy-pasteable code
5. **Validate** → `devplan_validate_plan` checks the plan is Haiku-executable
6. **Execute** → Haiku implements each subtask mechanically
7. **Verify** → Sonnet tries to break the implementation
8. **Learn** → Issues become lessons for future projects
### Validation Ensures Quality
The validation step checks that plans are truly Haiku-executable:
- ✅ Complete code blocks (not pseudocode or placeholders)
- ✅ All imports included in code blocks
- ✅ No "add to existing" instructions
- ✅ No cross-subtask references
- ✅ Verification commands with expected outputs
```
# Example validation output
{
"valid": true,
"errors": [],
"warnings": [],
"stats": {
"subtasks": 5,
"codeBlocksChecked": 8,
"issuesFound": 0
}
}
```
### Real-Time Progress with Task Tools
Generated executor and verifier agents integrate with Claude Code's Task tools for live progress visibility:
- **Executor agents** create tasks for each subtask, showing real-time spinners as work progresses
- **Verifier agents** create tasks for each verification phase (Smoke Tests, Feature Verification, Edge Cases, etc.)
- Progress is visible without scrolling — you always know what Claude is working on
```
# Example: Executor tracks subtasks
TaskCreate({ subject: "1.2.3: Implement auth middleware", activeForm: "Implementing auth middleware" })
TaskUpdate({ taskId: "...", status: "in_progress" })
# ... work happens ...
TaskUpdate({ taskId: "...", status: "completed" })
```
Both Task tools (real-time visibility) and DEVELOPMENT_PLAN.md (durable record) are updated — giving you the best of both worlds.
## Usage Examples
### New Project
```
"Use devplan_start to help me build [your idea]"
```
### Fix a GitHub Issue
```bash
# Get issue JSON
gh issue view 123 --json number,title,body,labels,comments,url > issue.json
# Then tell Claude:
"Use devplan_issue_to_task with this issue to create a remediation plan"
```
### Check Progress
```
"Use devplan_progress_summary to show me where we are"
```
## Multi-Model Support
DevPlan generates plans and agent files for multiple AI coding tools and models. Use the `target` parameter to generate outputs for your preferred tool.
### Supported Targets
| Target | Tool | Agent File | Best For |
|--------|------|-----------|----------|
| `claude` | Claude Code | `CLAUDE.md` | Claude Code IDE (default) |
| `cursor` | Cursor IDE | `.cursorrules` | Cursor AI editor |
| `aider` | Aider CLI | `.aider.conf.yml` | Terminal-based AI pair programming |
| `cline` | VS Code Cline | `.cline/instructions.md` | VS Code extension |
| `windsurf` | Windsurf IDE | `.windsurf/rules.md` | Codium's AI IDE |
| `generic` | Any Model | `AGENTS.md` + files | Model-agnostic markdown format |
### Using Targets
When generating plans or agent files, specify the target tool:
**Generate plan for Cursor:**
```
"Use devplan_generate_plan to create a plan, then I'll customize it for Cursor. Set target to 'cursor' for .cursorrules format"
```
**Generate executor for Aider:**
```
"Use devplan_generate_executor with target='aider' to create an Aider-compatible executor agent"
```
**Generate generic agent files:**
```
"Use devplan_generate_claude_md with target='generic' to create model-agnostic AGENTS.md files"
```
### How Targets Work
Each target has a dedicated **adapter** that transforms the DevPlan methodology into the appropriate format:
- **Claude** - Generates `CLAUDE.md` with executor/verifier agents in `.claude/agents/`
- **Cursor** - Generates `.cursorrules` with all guidance in one file (Cursor doesn't support separate agents)
- **Aider** - Generates `.aider.conf.yml` with architect mode instructions
- **Cline** - Generates `.cline/instructions.md` with executor/verifier split
- **Windsurf** - Generates `.windsurf/rules.md` with cascade-optimized format
- **Generic** - Generates `AGENTS.md`, `EXECUTOR.md`, and `VERIFIER.md` for any tool
### Examples
**Start a new project for Cursor:**
```
"Use devplan_start to help me build a CLI tool, then generate the plan with target='cursor' for Cursor IDE"
```
**Add executor for specific target:**
```
"I have a development plan. Use devplan_generate_executor with target='aider' to create the executor agent for Aider"
```
**Compare adapter capabilities:**
See [docs/ADAPTERS.md](/docs/ADAPTERS.md) for a detailed comparison of each target's capabilities and limitations.
## Tools
### Planning
| Tool | Purpose |
|------|---------|
| `devplan_start` | Main entry point - guides Claude through the methodology |
| `devplan_interview_questions` | Get questions to gather project requirements |
| `devplan_create_brief` | Generate PROJECT_BRIEF.md |
| `devplan_parse_brief` | Parse existing brief into structured data |
| `devplan_list_templates` | List project templates (cli, web_app, api, library) |
### Generation
| Tool | Purpose |
|------|---------|
| `devplan_generate_plan` | Generate DEVELOPMENT_PLAN.md scaffold with validation instructions |
| `devplan_generate_claude_md` | Generate CLAUDE.md scaffold |
| `devplan_generate_executor` | Generate Haiku-powered executor agent with Task tool integration |
| `devplan_generate_verifier` | Generate Sonnet-powered verifier agent with Task tool integration |
### Validation & Execution
| Tool | Purpose |
|------|---------|
| `devplan_validate_plan` | Validate plan structure and Haiku-executability |
| `devplan_get_subtask` | Get specific subtask details by ID |
| `devplan_update_progress` | Mark subtasks complete with notes |
| `devplan_progress_summary` | Get completion stats and next actions |
### Lessons Learned
Feedback loop that captures issues from verification and incorporates them into future plans.
| Tool | Purpose |
|------|---------|
| `devplan_add_lesson` | Capture a lesson from verifier findings |
| `devplan_list_lessons` | List accumulated lessons by severity |
| `devplan_archive_lesson` | Archive old lessons without deleting them |
| `devplan_delete_lesson` | Remove outdated or incorrect lessons |
| `devplan_extract_lessons_from_report` | Auto-extract lessons from verification reports |
### Issue Remediation
Convert GitHub issues into structured remediation tasks — perfect for bug fixes and post-release maintenance.
| Tool | Purpose |
|------|---------|
| `devplan_parse_issue` | Analyze a GitHub issue to extract requirements |
| `devplan_issue_to_task` | Generate remediation task with subtasks from an issue |
### Analytics
| Tool | Purpose |
|------|---------|
| `devplan_usage_stats` | View usage distribution across users |
## Why DevPlan?
| Without DevPlan | With DevPlan |
|-----------------|--------------|
| Context lost between sessions | Plans preserve full context |
| Inconsistent code quality | Haiku follows exact specifications |
| Same mistakes repeated | Lessons learned system prevents recurrence |
| No verification step | Sonnet actively tries to break the code |
| Bugs found in production | Issues caught before release |
| Plans need interpretation | Validated plans are copy-paste ready |
## Dashboard & Analytics
DevPlan includes a public dashboard for viewing aggregate usage statistics:
**Dashboard URL**: [devplanmcp.store/dashboard](https://devplanmcp.store/dashboard)
The dashboard shows:
- **Summary cards**: Total sessions, total tool calls, countries reached
- **Line chart**: Sessions and tool calls over the last 30 days
- **Country table**: Top 10 countries by session count
### Privacy
All analytics are privacy-preserving:
- **No IP storage**: Only Cloudflare-derived country/region codes
- **No user identification**: Sessions are anonymous
- **Auto-expiration**: Daily stats expire after 90 days via KV TTL
## Development
```bash
npm install
npm run dev # Local development
npm run deploy # Deploy to Cloudflare Workers
```
## Contributing
Contributions welcome! Please see the [ClaudeCode-DevPlanBuilder](https://github.com/mmorris35/ClaudeCode-DevPlanBuilder) repo for methodology details.
## License
MIT
---
<p align="center">
<b>Built for Claude Code</b><br>
<a href="https://modelcontextprotocol.io">Model Context Protocol</a> •
<a href="https://workers.cloudflare.com/">Cloudflare Workers</a> •
<a href="https://github.com/mmorris35/ClaudeCode-DevPlanBuilder">DevPlanBuilder Methodology</a>
</p>
