Architecture Layers

Layers

src/adapters

Contains shared types and stable contracts:

• chat.ts: chat messages, request/response types, streaming chunks, and system prompt helpers.
• config.ts: AppConfig, defaults, and DeepSeek-only configuration types.
• message.ts: webview-handler contract.
• models.ts: DeepSeek models and reasoning options.

This layer must not depend on React, VS Code, or HTTP.

src/core

Contains pure tool logic:

• tool registry.
• execution and validation.
• danger analysis.
• ToolWorkspace interface for workspace access without importing vscode.

Main rule: core must not import vscode.

src/deepseekApi

Contains DeepSeek integration:

• DeepSeek provider.
• chat/FIM requests.
• SSE streaming.
• tool-call requests and parsing.
• API types and errors.

It should not contain UI logic or direct VS Code manipulation.

src/infrastructure

Contains technical persistence:

• SettingsManager: global extension settings.
• SecretsManager: API key in SecretStorage.
• HistoryManager: conversations in globalState.

src/vscodeApi

Contains concrete VS Code adapters:

• activation and commands.
• WebviewProvider.
• DropZoneProvider.
• message handlers.
• filesystem/workspace/terminal implementation for tools.

src/ui/chat

Contains the React webview:

• Chat, History, and Settings views.
• messaging hooks.
• rendering for streaming, tool results, and confirmations.
• Vite build to dist/webview.