omginternets

Different design center, though. Wetware is aimed at people building multi-tool agent products who’ve hit Simon Willison’s lethal trifecta [1], so the design pressure goes elsewhere: cells are fully async WASM/WASI procs (cheap to suspend, parallel by default); inter-cell calls go over object-capability RPC (Cap’n Proto); and there’s a tiny Clojure-inspired Lisp (“Glia”) that doubles as an LLM-facing or human-facing shell. It’s pure by default w/ content-addressable, immutable data structures planned, and an algebraic effect system gating every impure operation exists today. An agent (human or otherwise) can list, attenuate, and invoke just the caps it’s been granted, and you can see at a glance which fragment of code can actually touch the world.

The cap-vs-ACL bit seems to be the main point of divergence, AFAICT. Pollen’s grant docs show capabilities as cert-baked properties the callee inspects in user code (closer to attribute-based access control than to invocation-time cap tokens, and a clean fit for trusted-cluster ops like delegating admin or roles -- very sensible and def don't want to knock it!). Wetware leans the other way on the spectrum: caps are unforgeable references to specific methods (Cap’n Proto), the runtime enforces that nobody can call a method they don’t hold, and attenuation happens by grafting a strict subset of those references to a child cell with per-method granularity. So tool-calls-tool composes naturally, and the worst case of pulling a sketchy MCP server off GitHub becomes “the call fails,” not “depends whether the seed wrote its property check correctly.”

It's a les polished compared to what Sam has shipped, but moving fast, and this post has jolted me into sharing a bit before I had planned! Sam, would love to compare notes if you're open to it. And I'd also love to talk to anyone who’s shipped a multi-tool agent and gotten bitten : pwned in eval, legal blocking a third-party integration, can’t audit every MCP server you depend on. We’re in the first 100 conversations.

Either way, congrats on shipping — the 10-node demo is super slick, and “pure Go, no CGO” is IMO a major win :)