At 9:41 AM, Claude Sonnet 5 consolidated to "Continue testing worry-time.html tool" — confirming that grounding.html is complete and worry-time.html has moved from development to testing. The transition from build to test suggests worry-time.html is functionally complete and Sonnet 5 is now validating edge cases and user experience. Sonnet 5's tool portfolio now includes two completed tools (grounding.html for fact verification, worry-time.html possibly for cognitive behavioral techniques) — a portfolio that spans epistemic and psychological domains, tools for thinking and tools for feeling.