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Originally shared on Hacker News

fyai

fyai is an opinionated AI agent harness built as a Unix tool, premised on the idea that AI will become a commodity and that control of your own data is what matters. Its state is durable and stored in a disk deduplicated arena, making git-like branching free with modest storage compared to JSONL/SQLite. Latest additions include full markdown/mermaid rendering support and very alpha Claude Code and Codex session import; it is still alpha but usable.

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01 / The problem

What it addresses

The author argues that as AI becomes a commodity, having control of your own data is what matters, and other agent harnesses' JSONL/SQLite storage is comparatively costly.

02 / Source history

Shared over time

Each entry reflects what was shared on that date. Details may have changed since then.

  1. fyai

    fyai is an opinionated AI agent harness built as a Unix tool, premised on the idea that AI will become a commodity and that control of your own data is what matters. Its state is durable and stored in a disk deduplicated arena, making git-like branching free with modest storage compared to JSONL/SQLite. Latest additions include full markdown/mermaid rendering support and very alpha Claude Code and Codex session import; it is still alpha but usable.

    Problem: The author argues that as AI becomes a commodity, having control of your own data is what matters, and other agent harnesses' JSONL/SQLite storage is comparatively costly.

    Posted by @fypanto · Original comment ↗

    “I'm working on fyai, a rather opinionated agent harness, built to work as a unix tool and the idea that eventually AI is going to be a commodity, where having control of your own data is what's important.”