rain-assistant 1.0.18

AI-powered coding assistant with voice, plugins, web UI, and Telegram bot

Rain Assistant

AI-powered coding assistant with voice, plugins, web UI, and Telegram bot

Features | Installation | Usage | Plugins | Telegram Bot | Contributing

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Features

• Multi-Provider AI — Claude, OpenAI (GPT-4o), Google Gemini, and Ollama (local) through a unified interface
• Voice Input/Output — Whisper transcription + Edge TTS synthesis
• Dynamic Plugin System — Add capabilities by chatting: "I want you to search Google" and Rain creates the plugin automatically
• Telegram Bot — Use Rain from Telegram with voice messages, inline permissions, and all the same tools
• Computer Use — Control your screen with Claude's Computer Use (beta)
• Permission System — Three-tier security: GREEN (auto), YELLOW (confirm), RED (PIN required)
• File & Code Tools — Read, write, edit files, run bash commands, search codebases
• Conversation History — Persistent sessions with SQLite, resume conversations
• Modern Web UI — Next.js 16 + Zustand + Tailwind CSS with 3 themes
• MCP Integration — Connect to Home Assistant, Gmail, and more via Model Context Protocol (graceful degradation if unavailable)
• Marketplace — Ready-to-use plugins: weather, translator, URL shortener, system info, JSON formatter
• Rate Limiting — Per-token sliding-window protection across 6 endpoint categories
• Documents / RAG — Ingest PDFs, Markdown, and text files for context-aware conversations

Architecture

                     ┌─────────────────┐
                     │   Telegram Bot   │
                     │   (aiogram 3)    │
                     └────────┬────────┘
                              │
┌──────────────┐    ┌─────────▼─────────┐    ┌──────────────────┐
│  Next.js UI  │◄──►│  FastAPI Server   │◄──►│  SQLite Database │
│  (WebSocket) │    │  (Python 3.11+)   │    │  (conversations) │
└──────────────┘    └─────────┬─────────┘    └──────────────────┘
                              │
                    ┌─────────▼─────────┐
                    │ Provider Factory   │
                    ├───────────────────┤
                    │ Claude (SDK+MCP)  │
                    │ OpenAI (GPT-4o)   │
                    │ Gemini (Flash)    │
                    │ Ollama (local)    │
                    └─────────┬─────────┘
                              │
              ┌───────────────┼───────────────┐
              │               │               │
     ┌────────▼──────┐ ┌─────▼──────┐ ┌──────▼───────┐
     │ Built-in Tools│ │  Plugins   │ │ Computer Use │
     │ (17 tools)    │ │ (YAML/HTTP)│ │ (PyAutoGUI)  │
     └───────────────┘ └────────────┘ └──────────────┘

Installation

One-liner (recommended — nothing pre-installed needed)

Windows (PowerShell):

irm https://raw.githubusercontent.com/camilo-gutierrez/rain-assistant-installer/main/install.ps1 | iex

Linux/macOS:

curl -fsSL https://raw.githubusercontent.com/camilo-gutierrez/rain-assistant-installer/main/install.sh | bash

These scripts automatically download Python, ffmpeg, and everything needed. Zero dependencies required on a clean machine.

pip (if you already have Python 3.11+)

pip install rain-assistant

With optional extras

# Telegram bot support
pip install "rain-assistant[telegram]"

# Everything included (telegram, computer-use, browser, scheduler, ollama, memory, voice)
pip install "rain-assistant[all]"

Docker

git clone https://github.com/camilo-gutierrez/rain-assistant.git
cd rain-assistant
docker compose up -d

Update

Windows (one-liner install):

%USERPROFILE%\.rain\python\python.exe -m pip install --upgrade --no-cache-dir rain-assistant

macOS/Linux (one-liner install):

~/.rain/venv/bin/pip install --upgrade rain-assistant

pip (system install):

pip install --upgrade rain-assistant

Uninstall

Windows:

powershell %USERPROFILE%\.rain\uninstall.ps1

macOS/Linux:

bash ~/.rain/uninstall.sh

CLI Commands

rain                   # Start server (auto-opens browser)
rain doctor            # Check all dependencies
rain setup             # Re-run first-time wizard
rain --version         # Show version
rain --no-browser      # Start without opening browser
rain --port 9000       # Custom port
rain --host 127.0.0.1  # Bind to localhost only
rain --telegram        # Start with Telegram bot
rain --telegram-only   # Telegram bot only (no web server)

Usage

Web UI

1. Run rain — browser opens automatically
2. Enter the PIN shown in terminal (first launch only)
3. Enter your API key (or skip if configured during setup)
4. Select a project directory and start chatting

Telegram Bot

1. Create a bot via @BotFather on Telegram
2. Add the token to your config:

// ~/.rain-assistant/config.json
{
  "telegram": {
    "bot_token": "123456:ABC-DEF...",
    "allowed_users": [YOUR_TELEGRAM_USER_ID],
    "default_provider": "claude",
    "default_model": "auto",
    "default_cwd": "~"
  }
}

3. Start with Telegram: python server.py --telegram
4. Or Telegram only: python server.py --telegram-only
5. Send /start to your bot and follow the setup instructions

Bot Commands:

Command	Description
/start	Initialize session
/key <api-key>	Set API key (message auto-deleted)
/model <provider> [model]	Switch provider (claude, openai, gemini)
/cwd <path>	Set working directory
/clear	Clear conversation
/stop	Interrupt current task
/plugins	List installed plugins
/status	Show current configuration

Plugin System

Rain has a dynamic plugin system that lets you add new capabilities without writing code.

Create Plugins via Chat

Just tell Rain what you want:

"I want you to be able to check the weather"

Rain will automatically create a YAML plugin file in ~/.rain-assistant/plugins/ and activate it.

Plugin Format

Plugins are simple YAML files with three execution types:

HTTP Plugin (API calls):

name: weather
description: Get current weather for a city
version: "1.0"
permission_level: green
parameters:
  - name: city
    type: string
    description: City name
    required: true
execution:
  type: http
  method: GET
  url: "https://api.weatherapi.com/v1/current.json"
  params:
    q: "{{city}}"
    key: "{{env.WEATHER_API_KEY}}"
  extract: "current.{temp_c, condition}"

Bash Plugin (shell commands):

name: disk_usage
description: Check disk space usage
version: "1.0"
permission_level: yellow
parameters:
  - name: path
    type: string
    description: Directory to check
    default: "."
execution:
  type: bash
  command: "du -sh {{path}}"

Python Plugin (scripts):

name: uuid_generator
description: Generate a random UUID
version: "1.0"
permission_level: green
parameters: []
execution:
  type: python
  script: "import uuid; print(uuid.uuid4())"

Plugin Environment Variables

Store API keys securely for plugins:

"Set the WEATHER_API_KEY to abc123"

Rain stores them in ~/.rain-assistant/config.json under plugin_env. Plugins reference them as {{env.KEY_NAME}}.

Managing Plugins

Plugins are managed via the manage_plugins tool (Rain can do this in chat):

• Create: Rain generates and saves the YAML
• List: Show all installed plugins
• Enable/Disable: Toggle plugins without deleting
• Delete: Remove a plugin
• Show: View a plugin's YAML definition

Configuration

All configuration lives in ~/.rain-assistant/:

~/.rain-assistant/
├── config.json          # PIN, API keys, Telegram config, plugin env vars
├── conversations.db     # SQLite message history
├── plugins/             # Plugin YAML files
│   ├── weather.yaml
│   └── my_api.yaml
└── history/             # Exported conversation JSON files

Permission Levels

Level	Icon	Behavior	Examples
GREEN	Auto-approved	Read file, search, list directory
YELLOW	User confirms	Write file, edit, bash commands
RED	PIN required	rm -rf, git push --force, system commands

Contributing

See CONTRIBUTING.md for development setup and guidelines.

License

Apache License 2.0 — Copyright 2024-2026 Rain Assistant Contributors