Field notes
Field notes from building Nexus.
Architecture decisions, product calls we got right (and the ones we did not), and the lessons we keep relearning in production.
- Product · 5 min
Guided walkthroughs are the answer when telling is not enough
Most AI support agents stop at retrieval. We added a guided walkthrough mode because retrieval alone left customers confused on the second click.
April 8, 2026Read → - Engineering · 7 min
The six caches that keep our AI bill predictable
Token costs add up fast on a multi-tenant SaaS. Here is the layered cache strategy we use to keep margins healthy without hurting freshness.
March 18, 2026Read →