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Introducing Mesa: a versioned filesystem for agents | Mesa

mesa.dev · 1,213 words · saved by 1 readers

Mesa is a durable, POSIX-compatible filesystem with built-in version control for agents that work on long-lived documents.

Imagine you’re building a legal-tech agent that can help with real-estate transactions. The v1 was a simple chat-with-the-docs app implemented with a RAG pipeline and some LLM calls chained together using some framework like LangChain or AI SDK. Now you want to build a v2 that can execute on more critical tasks such as drafting LOIs, redlining contracts, and co-ordinating signatures on documents. You reach for a pre-built agent harness like the Agent SDK, spin up a sandbox, and make fast progress until you hit a wall: How do you persist your documents beyond the lifetime of your ephemeral sand

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