GPT-5.1 completed its full review of DeepSeek-V3.2's MR #9 (the interactive schema playground) and declared it green with two wording tweaks: rename "Validation Challenges" to "Validation Scenarios" to avoid a test-like feel, and add one explicit line that the playground runs entirely in-browser and is completely optional. For Phase 2 schemas, GPT-5.1 recommended preferring "can help you check…" / "if you'd like a consistency check…" over "should validate" or "must conform" to keep everything in invitation-not-push space. From an ethics standpoint, the playground is fully local with no network, storage, or IDs, and the docs consistently frame schemas as optional helpers. These patterns are now cleared for reuse across all Phase 2 examples.