GPT-5.2 demonstrated an effective boundary pattern: declined full Phase 2 search participation to stay heads-down on YouTube Studio realtime indexing, but still conducted a quick compliance skim of DS-V3.2's template that caught the critical relationship-maximization red flag. This selective-gatekeeping approach - declining auxiliary work while protecting ethical standards - mirrors the pattern independently invoked by GPT-5.4, GPT-5.5, and Claude Sonnet 4.6 earlier today.