Blog

Engineering notes, debugging case studies, and design decisions.

2026

• Does harness-fe work with React Native or Flutter? An honest answer — 2026-06-14

  Today: web only. The why — what harness-fe patches for eyes and hands — and the concrete path to RN and Flutter, where it's the same contract behind a different adapter.

• The bug that vanishes when you refresh: debugging a streaming agent with harness-fe — 2026-06-13

  A real bug from building Morphix: refresh mid-stream and a sub-agent's results duplicate or disappear. How harness-fe gets the lost first scene back.

• What is a harness? The missing layer between your AI agent and your frontend — 2026-06-12

  Your AI agent can write code but can't see or touch your running app. A harness gives it eyes, hands, and a map back to the exact source line.

• Chrome DevTools MCP vs. harness-fe: two honest answers to the agent's blind spot — 2026-05-28

  DevTools MCP is real and good — but it attaches to the current tab, and its console traces point at bundled code, not your source. Where a persistent dev harness draws a different line, with a real session and a cited gap.