Meguru-gumi Open Sources "Serverless AI Secretary" That Operates Exclusively with Claude Subscriptions

Meguru-gumi, which provides comprehensive planning, design, and construction services for high-yield rental housing mainly in Tokyo's 23 wards, has developed and open-sourced an AI secretary agent called "TelegramSecretary for Claude," which operates via the Telegram messaging app.

The main feature of this "serverless" configuration is that it requires no personal servers or additional API usage fees, starting solely with the user's existing Claude subscription. It provides 24/7 responsiveness and accumulates business knowledge and history as long-term memory via GitHub integration. The developers currently use it in their own company operations.

## Background
The construction industry faces a serious labor shortage, making business DX an urgent priority. This tool was developed to meet the practical need for a "consultation and instruction window" available anytime, even when on the move, without requiring infrastructure investment.

## Five Key Features
1. Serverless: No public server required.
2. Claude Subscription Only: No separate server contracts or API usage fees.
3. Long-term Memory via GitHub: Securely accumulates relationships, requests, and対応 knowledge.
4. Extensible Custom Capabilities: Allows function extension without rewriting the main program.
5. Proactive Operation: Supports bidirectional communication where the secretary can initiate contact.

## Crafted as a Business Tool
It offers strengths in information utilization, such as transcribing audio/video and parsing files, while achieving structural task management (Write-Ahead Log) and maintainability through a clean architecture.

## Why Open Source?
It was released on GitHub so that SMEs and developers facing similar challenges can freely use, verify, and improve the tool.