joywayerandClaude Opus 4.8
e65066a8fb
- 去掉版本号后缀，路径更稳定（后续更新工具不必再改 .mcp.json） - .mcp.json 指向新路径 server/build/index.js - server 依赖已 npm install 就绪；node_modules 由 .gitignore 忽略，未入库 Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
71 lines
2.5 KiB
Markdown
71 lines
2.5 KiB
Markdown
# Architecture
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## Overview
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```
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┌─────────────┐ stdio/MCP ┌──────────────┐ WebSocket:6505 ┌──────────────────┐
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│ AI Client │ ←────────────────→ │ Node.js MCP │ ←──────────────────→ │ Godot Plugin │
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│ (Claude Code)│ │ Server │ JSON-RPC 2.0 │ (Editor Plugin) │
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└─────────────┘ └──────────────┘ └──────────────────┘
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```
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## Communication Flow
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1. AI client sends MCP tool call (e.g. `add_node`)
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2. Node.js server translates to JSON-RPC 2.0 request
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3. WebSocket sends to Godot plugin
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4. Plugin's command router dispatches to handler
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5. Handler executes via Godot Editor API (with UndoRedo)
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6. Result sent back as JSON-RPC 2.0 response
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7. Node.js formats as MCP tool result
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8. AI receives structured response
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## Godot Plugin Structure
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```
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plugin.gd (EditorPlugin)
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├── websocket_server.gd (TCP+WebSocket server)
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├── command_router.gd (dispatch hub)
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│ ├── project_commands.gd (6 commands)
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│ ├── scene_commands.gd (8 commands)
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│ ├── node_commands.gd (8 commands)
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│ ├── script_commands.gd (6 commands)
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│ └── editor_commands.gd (5 commands)
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└── ui/status_panel (connection monitor)
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```
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## Key Design Decisions
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### WebSocket over HTTP
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- Real-time bidirectional communication
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- Natural for editor integration (persistent connection)
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- Heartbeat keeps connection alive
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### JSON-RPC 2.0
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- Standard protocol with well-defined error codes
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- Each request has unique ID for tracking
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- Easy to debug and extend
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### UndoRedo Integration
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- All scene modifications go through `EditorUndoRedoManager`
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- Users can Ctrl+Z any AI-made change
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- Prevents accidental data loss
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### Type Parsing
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- `PropertyParser` handles string → Godot type conversion
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- Supports Vector2/3, Color, Rect2, NodePath, etc.
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- AI can send simple strings, plugin handles the rest
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## Error Codes
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| Code | Meaning |
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|------|---------|
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| -32700 | Parse error (invalid JSON) |
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| -32600 | Invalid request |
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| -32601 | Method not found |
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| -32602 | Invalid params |
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| -32603 | Internal error |
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| -32000 | No scene open |
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| -32001 | Node/resource not found |
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| -32002 | Script compilation failed |
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