project-api-validation git:20260902.749d57bA

Immutable. This exact content is served forever at /api/v1/blob/5a90f150b2506ca2.

---
name: project-api-validation
description: Preserve this project's request validation and error catalog.
---

# Project API validation

Reject invalid request values before side effects, preserve the project error
envelope, update the error catalog for new codes, and run the API contract check.