Knock.app Built Its AI Agent Using a Virtual Filesystem and Bash

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Knock.app has published a technical blog post detailing the architecture behind its AI agent. The team opted for a virtual filesystem and Bash-based approach rather than relying on conventional tool-calling methods. This design philosophy, described as 'files over tools,' shapes how the agent interacts with data and executes tasks. The post outlines the engineering decisions and trade-offs involved in building the system. It has gained early traction on Hacker News, drawing attention from the developer community.

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