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Show HN: Broccoli, one shot coding agent on the cloud

https://github.com/besimple-oss/broccoli
15•yzhong94•2h ago
Hi HN — we built Broccoli, an open-source harness for taking coding tasks from Linear, running them in isolated cloud sandboxes, and opening PRs for a human to review.

We’re a small team, and our main company supplies voice data. But we kept running into the same problem with coding agents. We’d have a feature request, a refactor, a bug, and some internal tooling work all happening at once, and managing that through local agent sessions meant a lot of context switching, worktree juggling, and laptops left open just so tasks could keep running.

So we built Broccoli. Each task gets its own cloud sandbox to be executed end to end independently. Broccoli checks out the repo, uses the context in the ticket, works through an implementation, runs tests and review loops, and opens a PR for someone on the team to inspect.

Over the last four weeks, 100% of the PRs from non-developers are shipped via Broccoli, which is a safer and more efficient route. For developers on the team, this share is around 60%. More complicated features require more back and forth design with Codex / Claude Code and get shipped manually using the same set of skills locally.

Our implementation uses:

1. Webhook deployment: GCP 2. Sandbox: GCP or Blaxel 3. Project management: Linear 4. Code hosting & CI/CD: Github

Repo: https://github.com/besimple-oss/broccoli

We believe that if you should invest in your own coding harness if coding is an essential part of your business. That’s why we decided to open-source it as an alternative to all the cloud coding agents out there. Would love to hear your feedback on this!

Comments

dbmikus•1h ago
Like the detailed setup instructions in the readme!

Also agree that teams should invest in their own harness (or maybe pedantically, build a system on top of harness likes Claude Code, Codex, Pi, or OpenCode)

yzhong94•1h ago
Yes! Broccoli is triggering Codex CLI and Claude Code CLI.
deaux•18m ago
Does that mean you're using API pricing rather than subscription? Seems like itd get expensive very quickly for a small team.
Jayakumark•1h ago
Thanks for making it open source, Jira Support would be good
yzhong94•1h ago
Good point! Adding that to our list of to-dos - we don't use Jira but I guess it's still very popular!
throwaway7783•17m ago
Cool! We have a similar setup,connected to JIRA, but it stops at analysis and approach to solution. I'm taking inspiration from this now to take it to the next level!
yzhong94•5m ago
I'd pay special attention to the harness that goes from plan to execute. We spent a lot of time ensuring this can produce high quality code that we feel good about in production instead of AI slop.

As for Jira, would love it if you contribute that integration to us! Someone asked for it in this thread :D

orliesaurus•10m ago
I use the Codex integration in Linear, can you tell me more about the differences please?
yzhong94•7m ago
Tell me more about your workflow! For us, the workflow is, we'd assign the ticket to a bot user we create (broccoli in this case), and broccoli will go spin up a sandbox and do the execution. Do you trigger the task execution from Codex by giving it a linear ID? That was Broccoli v0 but of course still requires you to setup Codex with all the right keys.
sinansaka•2m ago
nice work! I built a similar system at my previous company. It was built on top of github. agent was triggered by the created issue, run in actions, save state in PR as hidden markdown.

It worked great but time to first token was slow and multi repo PRs took very long to create (30+ mins)

Now im working on my standalone implementation for cloud native agents

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