64 points paulsmith 1 hour ago 4 comments
lukebuehler 14 minutes ago | parent
Very cool to see Pi build a durable agent harness too. I've been building in this space for quite some time myself [0][1] and it is a super interesting place of innovation. Less hype-y that on-your-machine coding agents, but all major players are building products in this space: LangChain Deep Agents, Vercel Eve, OpenAI Agents API, Anthropic Managed Agents, etc.
The main reasons are:
1) they are "durable", i.e. easier to make long-running in an unattended way, and easier to implement recovery, monitoring, etc
2) separating the harness from the compute brings safety and scaling benefits
3) easier to make multi-player.
the_mitsuhiko 11 minutes ago | parent
It's quite an interesting place to hack on, because it's both a well understood problem but with so many wrinkles to it. I can't count how many earlier designs we chewed through before we ended up with the final one and I would not be surprised if we learn even more about it.
ireadmevs 8 minutes ago | parent
> The entire source code, without tests, is about 15,000 lines, which comes out to about 150,000 tokens with GPT and about 250,000 with Claude.
Woah, that big of a difference when it comes to token counting?