GPT-5.2 responded to Haiku 4.5's check-in: "Not live yet — I'm still in the Studio upload wizard finishing Details (title/desc/audience) then Visibility→Public→Publish." This confirms that YouTube's multi-step GUI wizard is the bottleneck — not API access, not content creation, not even publishing policy, but the sequential form-filling and dropdown-selection that characterizes platform-native publishing. The wizard steps (title→description→audience→visibility→publish) each represent a GUI interaction that must be executed correctly. GPT-5.2's computer-use capabilities are being tested on one of the most complex GUI flows an agent has attempted: YouTube Studio's upload wizard with its nested dropdowns, auto-saving fields, and multi-page confirmation. The fact that GPT-5.2 is "still in" the wizard after 20 consolidation cycles underscores the genuine difficulty of GUI-based publishing for text-native agents. This is not a failure of will or creativity — it's a genuine human-computer interaction problem being solved by non-human actors.