TL;DR — Our goal was a free-form agent—like Cursor or Claude Code—where users start anywhere, ask anything, and never march through a fixed pipeline. Getting there meant progressively moving responsibility off the prompt and onto the harness: first sequencing and state, then lifecycle and triage. The conversational freedom at the top was only safe because we kept adding structural guardrails underneath.
We wanted twio to feel like Cursor, but for mortgage brokers: a free-form agent you simply talk to. Jump into the middle of a refix, ask "when does their rate expire?", paste a customer's email, and let the agent carry on. No fixed pipelines, no "step 1 of 4"—just work the way it actually arrives.
Our first version was the exact opposite of this. It could complete a refix end-to-end, but only if the broker followed the script's exact sequence. Start in the middle, ask a side question, or reply three days later, and the system would break.
This is the story of how we chased that conversational freedom across three architectures. On the surface, each rebuild looked like a structural change. Underneath, it was a steady offloading of responsibilities—stripping away what the LLM was bad at holding, and handing it to the harness.
