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Mario Zechner 0496651308 Add Anthropic prompt caching, pluggable storage, and CORS proxy support 
Storage Architecture:
- New pluggable storage system with backends (LocalStorage, ChromeStorage, IndexedDB)
- SettingsRepository for app settings (proxy config, etc.)
- ProviderKeysRepository for API key management
- AppStorage with global accessors (getAppStorage, setAppStorage, initAppStorage)

Transport Refactoring:
- Renamed DirectTransport → ProviderTransport (calls LLM providers with optional CORS proxy)
- Renamed ProxyTransport → AppTransport (uses app server with user auth)
- Updated TransportMode: "direct" → "provider", "proxy" → "app"

CORS Proxy Integration:
- ProviderTransport checks proxy.enabled/proxy.url from storage
- When enabled, modifies model baseUrl to route through proxy: {proxyUrl}/?url={originalBaseUrl}
- ProviderKeyInput test function also honors proxy settings
- Settings dialog with Proxy tab (Switch toggle, URL input, explanatory description)

Anthropic Prompt Caching:
- System prompt cached with cache_control markers (both OAuth and regular API keys)
- Last user message cached to cache conversation history
- Saves 90% on input tokens for cached content (10x cost reduction)

Settings Dialog Improvements:
- Configurable tab system with SettingsTab base class
- ApiKeysTab and ProxyTab as custom elements
- Switch toggle for proxy enable (instead of Checkbox)
- Explanatory paragraphs for each tab
- ApiKeyPromptDialog reuses ProviderKeyInput component

Removed:
- Deprecated ApiKeysDialog (replaced by ProviderKeyInput in SettingsDialog)
- Old storage-adapter and key-store (replaced by new storage architecture)
2025-10-05 23:00:36 +02:00
..
src Add Anthropic prompt caching, pluggable storage, and CORS proxy support 2025-10-05 23:00:36 +02:00
.gitignore web-ui package 2025-10-05 13:30:08 +02:00
index.html Add Anthropic prompt caching, pluggable storage, and CORS proxy support 2025-10-05 23:00:36 +02:00
package-lock.json web-ui package 2025-10-05 13:30:08 +02:00
package.json web-ui package 2025-10-05 13:30:08 +02:00
README.md web-ui package 2025-10-05 13:30:08 +02:00
tsconfig.json web-ui package 2025-10-05 13:30:08 +02:00
vite.config.ts web-ui package 2025-10-05 13:30:08 +02:00

README.md

Pi Web UI - Example

This is a minimal example showing how to use @mariozechner/pi-web-ui in a web application.

Setup

npm install

Development

npm run dev

Open http://localhost:5173 in your browser.

What's Included

This example demonstrates:

  • ChatPanel - The main chat interface component
  • System Prompt - Custom configuration for the AI assistant
  • Tools - JavaScript REPL and artifacts tool

Configuration

API Keys

The example uses Direct Mode by default, which means it calls AI provider APIs directly from the browser.

To use the chat:

  1. Click the settings icon (⚙️) in the chat interface
  2. Click "Manage API Keys"
  3. Add your API key for your preferred provider:

API keys are stored in your browser's localStorage and never sent to any server except the AI provider's API.

Project Structure

example/
├── src/
│   ├── main.ts       # Main application entry point
│   └── app.css       # Tailwind CSS configuration
├── index.html        # HTML entry point
├── package.json      # Dependencies
├── vite.config.ts    # Vite configuration
└── tsconfig.json     # TypeScript configuration

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