Stripe built Minions. Ramp built Inspect. Coinbase built Cloudbot.
Async coding agents are becoming standard infrastructure at serious eng orgs. Not autocomplete. Agents that take a ticket and come back with a PR.
LangChain open-sourced the pattern. It's called open-swe.
A framework for building your company's internal coding agent. Comment @openswe on a Linear issue, mention the bot in a Slack thread, or tag it in a GitHub PR review. It spins up an isolated cloud sandbox with full shell access and starts working.
It reads AGENTS.md from your repo root, runs linters and tests before committing, then opens a draft PR linked back to the originating ticket.
Change your mind mid-run? Send a message. Middleware injects it before the agent's next model call.
What stands out:
• Runs parallel tasks, no queuing
• Curated ~15 tools, not Stripe's ~500
• Sandboxes: Modal, Daytona, Runloop, or LangSmith
• Built on LangGraph Deep Agents, you compose instead of forking
The honest read: in-house coding agents took Stripe-sized teams to build. This is the same pattern with an upgrade path. Free and open source, MIT licensed, in Python.
⭐ 9,963 stars on GitHub.
🔗 GitHub link in the comments 👇