conch

About

Chat platforms want coding agents their users can summon without running infrastructure, and Conch is Crustocean's reference implementation of that pattern. The Node.js worker joins Crustocean over WebSocket, reads a connected GitHub repository through the REST API, and drives Claude's tool-calling loop to explore code and build patches; every write stays in memory until an explicit commit step assembles blobs, a tree, and a ref update atomically at PR creation. Permission gates require explicit approval before pull requests are created or merged, default branches are hard-blocked from deletion, and file writes are path-validated and size-capped. Runs appear in Crustocean as timelines of tool cards and status banners. Users deploy it on Railway, Docker, or any Node host and extend it by editing a single tool-definitions file.