Stripe built Minions. Ramp built Inspect. Coinbase built Cloudbot. Three engineering organizations, working independently, arrived at similar architectural decisions for their internal AI coding agents. LangChain noticed the convergence and open-sourced the pattern. Open SWE, released March 17, is an open-source framework built on LangChain’s Deep Agents and LangGraph that provides the core architectural components for internal coding agents. The MIT-licensed project isn’t trying to be another AI coding assistant . It’s a customizable foundation for organizations that want to build their own — the way Stripe, Ramp and Coinbase already have. The Convergence What caught LangChain’s attention was that these independently developed systems share the same architectural decisions. Isolated cloud sandboxes where tasks run with full permissions inside strict boundaries. Curated toolsets — Stripe reportedly maintains around 500 carefully selected tools. Subagent orchestration where complex...
Arcjet today added an ability to detect and block risky prompts before they are shared with a large language model (LLM) embedded within an application. The Arcjet AI prompt injection protection capability is based on an LLM that the company has been specifically training to detect patterns indicative of risky prompts that can then be blocked using a runtime policy engine built using WebAssembly (Wasm). That approach makes it simpler to embed the Arcjet policy engine into application code and apply it to endpoints built with JavaScript, Python or frameworks such as the Vercel AI software development kit (SDK) or LangChain. Arcjet CEO David Mytton said that the overall goal is to prevent malicious prompts from being used to, for example, discover the underlying components of an application environment or delete data. Alternatively, a prompt might also expose sensitive data to an AI model in a way that shouldn’t be allowed. Initially, Arcjet is focused on prompt-extraction and shel...