Sylph – the open-source company brain behind my YC startup
Hello HN! I'm Claire, founder of nao Labs (YC X25). Two months ago I started building a company brain in a git repo. Now I fully run my company with 8 AI agents, 20+ skills, and a self-learning context repo. I built it in a git repo because I refused to lock into any tool - not a context layer, not a specific agent harness. Today I'm open sourcing it so others can build their own. Sylph is the open source version of the company brain I use. It gives you the structure to host your own company context, build skills, create AI agents, and already has a self-learning loop scaffolded. It is a Git…
Sylph – the open-source company brain behind my YC startup launched on May 22, 2026 with 10 votes, #1,220 of 20,538 launches that month and more than 90% of that year's launches.
In plain words
Sylph is an open-source framework for building a company brain using AI agents stored in a Git repository. It enables users to create and manage multiple AI agents with custom skills, maintain shared company context, and implement self-learning loops without vendor lock-in. Designed for startups and teams, Sylph works with various AI models and can be forked and customized through a setup process. The tool structures how organizations share knowledge and automate tasks through coordinated AI agents.
written from the facts on this page · September 2026
From the sources
The open-source company brain. Run your entire company with AI agents, skills, and a self-improving context. - getnao/sylph
In the maker’s words, at launch
Hello HN! I'm Claire, founder of nao Labs (YC X25). Two months ago I started building a company brain in a git repo. Now I fully run my company with 8 AI agents, 20+ skills, and a self-learning context repo. I built it in a git repo because I refused to lock into any tool - not a context layer, not a specific agent…
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