Intent of claudeAgent.test|title=ClaudeAgent — Phase 11 customizations changeModel on a peer chat fires onDidChangeChatData with the refreshed providerData|occurrence=1, claudeAgent.test|title=ClaudeAgent — Phase 11 customizations chats.changeModel on a peer fires onDidChangeChatData with the refreshed providerData (parity with legacy changeModel)|occurrence=1

All 2 exact tests in this concept. Every test is marked by where it enters the hierarchy.