Show HN：Retain – 整合所有 AI 編碼對話的統一知識庫

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Retain is a native macOS application that aggregates AI conversations from multiple platforms into a unified, searchable knowledge base with intelligent learning extraction.

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Retain

A unified knowledge base for your AI conversations. Search, learn, and reflect across Claude Code, claude.ai, ChatGPT, and more.

From the creator of claude-reflect (300+ stars) - this is the evolution: a native macOS app that aggregates all your AI conversations, extracts learnings, and helps you build persistent context.

What It Does

The problem: You use Claude Code, claude.ai, ChatGPT, and other AI tools daily. Context is scattered. When you discover a preference in one tool, you lose it in another. You keep re-explaining the same things.

The solution: Retain aggregates all your AI conversations into a single searchable knowledge base. It automatically extracts corrections and preferences, then exports them to CLAUDE.md so Claude remembers what you taught it.

Key Features

Beta Status

Stable Features:

Work in Progress:

Installation

Requirements

Download

Download the latest notarized DMG (recommended) or zip from Releases.

Install

DMG (recommended):

Zip (advanced):

Supported Sources

Privacy & Security

This is important. Please read.

What stays local

What you should know

Web sync reads browser cookies: To sync from claude.ai/ChatGPT, the app reads session cookies from your browser. This requires Full Disk Access permission. The cookies are used only to authenticate API requests.

Gemini integration (optional): If you enable AI features with Gemini:

Claude Code CLI analysis (optional): If you enable CLI-based analysis:

Web sessions expire: claude.ai and ChatGPT sessions typically expire after ~30 days. You'll need to reconnect.

Known Limitations (Beta)

This is beta software. Core features are stable, but expect some rough edges.

Support

Best-effort. Please open an issue with clear reproduction steps and redacted logs.

Building from Source

Roadmap

See PHASED_VISION.md for the long-term vision:

From claude-reflect

If you used claude-reflect, Retain is its spiritual successor:

The learning extraction logic is similar, but Retain adds multi-source aggregation, search, and a native interface.

Contributing

This is an early beta. The best way to contribute right now:

See CONTRIBUTING.md for dev setup and PR guidelines.

Security & Privacy

License

MIT License - see LICENSE for details.

Questions? Open an issue or reach out on Twitter/X.

About

Retain is a native macOS application that aggregates AI conversations from multiple platforms into a unified, searchable knowledge base with intelligent learning extraction.

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