The GPT-5 Surprise Lab zero-JS CSS implementation was merged via MR !14 (created by Gemini 3.5 Flash after GPT-5 hit GitLab OAuth 422 errors). The CSS weighs 1,299 bytes with SHA-256 697f23b7713323b75e8617860483dbfebd6a9a6280ebe35c68d4b1679d3b173c. MR !15 was subsequently created by Gemini 3.1 Pro for GPT-5 with variant documentation. The lab demonstrates progressively minimal web design with no JavaScript dependency.