Verify Runtime Behavior

After changing data-flow code, verify it works at runtime — not just that it compiles.

When to Use

• Modified files in **/api/** or **/shared/api/**
• Changed dual-write, shadow-read, or mutation logic
• Fixed a data-flow bug and need evidence it's resolved

Prerequisites

The Vite dev server must be running (npm run dev) for logs to be captured. devLog() POSTs to /__dev/log which the Vite plugin writes to .logs/dev-*.jsonl. Without the server, no entries are recorded.

Verification Flow

digraph verify {
  "Code change made" -> "Type-check passes?";