Rewrite as current state rather than how it was decided

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_013kj58Jugkic783b8ZrtTVZ
2026-09-04 15:23:09 +09:00
parent d4bd72ab83
commit ef51f22d4c
2 changed files with 5 additions and 6 deletions
@@ -6,8 +6,9 @@ type: guidelines
 ## 1. Fixtures publish the real contract
 - A fixture emits the **real topic with the real payload schema**. `yukart/gnss/fix`
  from a replayed track must be indistinguishable, at the bus, from a real fix.  
- A fixture that invents its own topic or shape is worse than no fixture: it defers
-  the integration work instead of removing it.
+- ⚠ **A fixture that invents its own topic or shape defers integration rather than
+  removing it** — the mismatch surfaces when the real source arrives, which is the
+  moment it is most expensive.

 ## 2. Do not reimplement our own services
 - Stub the **car** and the **hardware**. Never write a *separate* implementation of