81 lines
4.1 KiB
Markdown
81 lines
4.1 KiB
Markdown
# Dew Model Context Protocol (MCP) Server
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The Dew Model Context Protocol (MCP) Server is a feature that allows AI agents to interact with your project. This enables you to integrate AI capabilities into your project management workflow, such as automated task creation, progress tracking, and more.
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## Package structure
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The MCP feature is split across two packages to keep concerns separate:
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- **`packages/core`** defines the `DewToolCommand` mixin. Any command that mixes it in is automatically
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registered as an MCP tool — the mixin derives the tool's JSON Schema directly from the command's own
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`ArgParser`, so tools and CLI commands share a single definition.
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- **`packages/mcp`** implements the actual server. It reads the list of tools from `CommandRegistry` and
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serves them over stdio using the [dart\_mcp](https://pub.dev/packages/dart_mcp) package. Only the `cli`
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package depends on `packages/mcp`; feature packages like `kanban` remain decoupled from the transport layer.
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## Configuration
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The MCP server currently has no `.project/dew.yaml` settings. Configure your MCP
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client to launch `dew mcp serve`; the server communicates over stdio.
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## Running the server
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The MCP server uses **stdio transport** — the MCP client launches it as a child process and communicates over stdin/stdout. Because of this, the process must have clean stdout (no decorative output). `melos run` pollutes stdout with its own log lines, which corrupts the JSON-RPC channel.
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### Step 1 — Compile to a native binary
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```text
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melos run compile
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```
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This produces `.project/toolchain/bin/dew` (or `.project/toolchain/bin/dew.exe` on Windows).
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### Step 2 — Configure your MCP client
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Point your MCP client at the compiled binary. For example, in VS Code's MCP configuration:
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```json
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{
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"mcpServers": {
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"dew": {
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"command": "/absolute/path/to/dew/.project/toolchain/bin/dew",
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"args": ["mcp", "serve"]
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}
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}
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}
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```
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The server logs its startup message to **stderr** so it never interferes with the JSON-RPC channel on stdout.
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## Available tools
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The following tools are registered by the `kanban` package:
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| Tool | Description |
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| ------------------------- | ----------------------------------------------------------------------- |
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| `kanban_create_ticket` | Create a new kanban ticket |
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| `kanban_list_tickets` | List tickets, optionally filtered by column or type |
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| `kanban_get_ticket` | Get details of a specific ticket by ID |
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| `kanban_update_ticket` | Update one or more fields on an existing ticket |
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| `kanban_delete_ticket` | Delete a ticket permanently (also removes its attachment directory) |
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| `kanban_move_ticket` | Move a ticket to a different column |
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| `kanban_search_tickets` | Full-text search across ticket titles, bodies, and comments |
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| `kanban_add_comment` | Append a comment to a ticket |
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| `kanban_get_config` | Return the current kanban config (columns, types, prefix) |
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| `kanban_stats` | Show ticket counts grouped by column and type |
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| `kanban_link_tickets` | Link two tickets with a typed relationship (bidirectional) |
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| `kanban_unlink_tickets` | Remove a link between two tickets (both sides) |
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### Link types
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`kanban_link_tickets` requires a `--type` argument. The inverse is written automatically on the target ticket.
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| Type | Inverse | Symmetric? |
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| ----------------- | ----------------- | ---------- |
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| `blocks` | `is_blocked_by` | No |
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| `is_blocked_by` | `blocks` | No |
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| `relates_to` | `relates_to` | Yes |
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| `duplicates` | `is_duplicated_by`| No |
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| `is_duplicated_by`| `duplicates` | No |
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| `parent_of` | `child_of` | No |
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| `child_of` | `parent_of` | No |
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