I've been working on gollem — it's a Go agent framework with type-safe agents, structured output, multi-provider support (Anthropic, OpenAI, Gemini, Vertex AI), MCP integration, and multi-agent team swarms. The big idea is compile-time guarantees instead of runtime validation, zero core dependencies, and single-binary deploys. Think of it as what you'd want if you were building production agent systems in Go instead of Python.
To stress-test it I pointed it at a dumb task: generate an entire novel. It wrote ~40K words across 11 chapters in about 10 minutes. The "author-bot" uses gollem's agent primitives — chained agents for chapter planning, continuity checking, iterative drafting. Basically an orchestration.ChainRun pipeline where each stage feeds into the next.
The novel ("The Year Unedited" — dystopian memory-editing premise) came out surprisingly coherent. Characters kept distinct voices across chapters, the plot threads mostly held together, and it didn't just wrap everything up neatly at the end. Not saying it's good literature, but it's a decent stress test for long-running agent orchestration.
The framework itself is the actual point of this post though. It does cost tracking, guardrails, middleware chains, streaming with Go 1.23+ iterators, background process management, graph workflows, eval framework, the works. Happy to dig into any of the architecture details.
I built a GitHub-native coding / review agent that outperforms CodeRabbit (by a lot), and it only took me like two hundred hours. There are a few of us using it at work, meanwhile CodeRabbit is valued at $550M.
No, I don’t. I built it inside of my employer’s walls (hedge fund), so I’d have to rebuild it from scratch in order to acquire paying customers (not a bad idea).
True, from scratch, may need to be cautious regarding re-creating it having built it on your employer's time and machinery/property, check your employment contract. Still very cool that you built this!
Would anyone at Google be willing to tell me how many people are working on this project? I’ve been building something functionally similar for my employer, but it’s a nights and weekends project with only one contributor (me).