capture-gpu-tier

Use when capturing a GPU capability tier for the stealth crate's WebGL spoofing tables — running the probe on a machine whose GPU backend is not yet represented, then regenerating and committing the tables. Triggers on a request to "capture a tier", "add a GPU tier", "probe this machine's GPU", or a platform_skew warning about a persona whose OS has no matching tier. Keywords: probe_gpu, gpu-tier-gen, tiers.rs,…