A sophisticated AI-powered personal assistant system built with n8n, featuring autonomous agents, memory management, calendar integration, and task automation.

• Second Brain - Main orchestration agent that routes requests to specialized tools based on user intent

• Daily Readiness Marshal - Generates personalized daily readiness reports based on recovery metrics and schedule
• Sub-Agent: Whoop Recovery - Fetches recovery data from Whoop API

• Link Reader - Extracts and reads webpage content
• Web Search - Performs real-time Google searches
• Calendar View - Retrieves Google Calendar events
• Calendar Schedule - Creates new calendar events with conflict checking
• Add Task - Creates tasks in Todoist
• Memory Add - Stores information in vector database (Pinecone)
• Memory Search - Retrieves information from vector database

Second Brain (Main Agent)
├── Tools
│ ├── Link Reader
│ ├── Web Search
│ ├── Calendar View
│ ├── Calendar Schedule
│ ├── Add Task
│ ├── Memory Add
│ └── Memory Search
└── Sub-Agents
 ├── Daily Readiness Marshal
 │ └── Sub-Agent: Whoop Recovery
 └── Sub-Agent: Whoop Recovery

1. n8n (self-hosted or cloud)
2. Google Gemini API - For AI language model
3. Pinecone - Vector database for memory storage
4. Google Calendar API - Calendar integration
5. Todoist API - Task management
6. SerpAPI - Web search functionality
7. Telegram Bot - User interface
8. Whoop API - Recovery/fitness data (optional)

• @n8n/n8n-nodes-langchain - LangChain integration
• Base n8n nodes (HTTP Request, Code, Set, etc.)
• Community nodes may be required depending on your n8n version

1. Navigate to your n8n instance
2. Go to Workflows → Import from File
3. Import workflows in this order:
   • All tool workflows first (workflows/tools/*.json)
   • Sub-agents next (workflows/agents/Sub-Agent*.json)
   • Main agent last (workflows/agents/Second Brain.json)

Set up the following credentials in n8n:

• Type: Google PaLM API
• Obtain API key from Google AI Studio

• Type: Pinecone API
• Create account at Pinecone
• Create index named second-brain with dimensions matching your embedding model

• Type: Google Calendar OAuth2
• Follow Google Cloud Console setup

• Type: Todoist API
• Get API token from Todoist Settings → Integrations

• Type: SerpAPI
• Get API key from SerpAPI

• Type: Telegram API
• Create bot via @BotFather

• Type: OAuth2 API
• Register app at Whoop Developer Portal

Replace placeholders in the workflow files:

• YOUR_EMAIL@example.com → Your actual email
• YOUR_TELEGRAM_CHAT_ID → Your Telegram chat ID (get from @userinfobot)

The system is configured for Asia/Singapore timezone. Update in:

• Second Brain workflow settings
• Calendar-related workflows
• Daily Readiness Marshal

1. Ensure all tool workflows are active
2. Activate sub-agent workflows
3. Finally, activate the Second Brain workflow

The Second Brain agent responds to natural language commands via Telegram:

• "What's on my schedule today?"
• "Schedule a meeting with John tomorrow at 3pm"
• "Do I have any conflicts on Friday afternoon?"

• "Remind me to buy groceries"
• "Add task: Email the report by 5pm"

• "Remember that I prefer morning meetings"
• "What is my favorite restaurant?"

• "What's the weather in Singapore?"
• "Search for latest AI news"
• "Summarize this article: [URL]"

• "Run my daily readiness report"
• "Show my recovery status"

• Daily Readiness Report: Automatically triggered at 10:30 AM (configurable via Schedule Trigger)
• Memory Auto-Save: Automatically stores important information from conversations
• Conflict Detection: Automatically checks for calendar conflicts before scheduling

Edit the system prompt in the Second Brain workflow's AI Agent node to modify:

• Response tone and style
• Decision-making logic
• Tool selection criteria

In Second Brain workflow:

• Adjust the Schedule Trigger node to change when daily reports are sent

Add new tools by:

1. Creating a new workflow with Execute Workflow Trigger
2. Adding it as a Tool Workflow node in the Second Brain agent
3. Updating the system prompt to include the new capability

• The JSON files in this repository contain credential IDs only, not actual secrets
• Actual credentials are encrypted in your n8n database
• Personal information (email, chat ID) has been redacted - update these after import
• The n8n instance ID is specific to your installation and is not sensitive

• Uses Pinecone vector store for semantic search
• Embeddings generated via Google Gemini
• Text chunked using recursive character splitter (500 chars, 50 overlap)

• Primary model: Gemini 2.0 Flash Preview
• Memory window: 12-15 messages (context-dependent)
• HTML formatting for Telegram compatibility

• Timezone: Asia/Singapore
• ISO 8601 format for date/time inputs
• Automatic conflict detection

• Total Workflows: 10
• Tool Workflows: 7
• Agent Workflows: 3
• API Integrations: 7+
• AI Nodes: Multiple LangChain agents with memory

Workflow not executing

• Ensure all sub-workflows are active
• Check credential configuration
• Verify workflow IDs match in tool references

Memory not working

• Confirm Pinecone index exists and is named correctly
• Check embedding model credentials
• Verify dimensions match (typically 768 or 1536)

Calendar errors

• Validate timezone settings
• Ensure ISO 8601 date format
• Check Google Calendar API quota

Telegram not responding

• Verify bot token is correct
• Ensure webhook is not conflicting
• Check chat ID is accurate

These workflows are provided as-is for personal use. Please review and comply with the terms of service for all integrated third-party APIs.

Feel free to fork, modify, and submit pull requests with improvements or additional tools!

This system handles personal data (calendar, tasks, memories). Ensure you:

• Keep your n8n instance secure
• Use strong credentials
• Regularly backup your workflows
• Review API access permissions