Yani's Creator Guard is a Unity Editor preflight tool for VRChat creators. It helps you check your world or avatar project before upload, so you can catch likely blockers before wasting time in the VRChat SDK builder. Detect first. Upload second. What it checks: - World preflight for Quest VRAM, shaders, scene descriptor, Unity/SDK errors, build target, risky scene components, lights, particles, audio, and multiple active cameras. - Avatar preflight for Quest/PC target readiness, shaders, texture memory, triangles, blendshapes, PhysBones, contacts, constraints, material slots, expression menus, and expression parameter pressure. - Plain-language explanations for what each issue means. - Copyable and saveable Markdown reports. - Top Fixes view to focus on the most important blockers first. - Quest material assist tools for creating and assigning Quest-safe material duplicates without editing your original PC materials. Creator Guard does not upload or publish anything to VRChat. It does not guarantee VRChat approval or perfect Quest performance. It is a preflight helper that points out likely risks before upload. You should still test your world or avatar in Unity, the VRChat SDK, and on headset.