Intent of agentPluginFormatDetection.test|title=AgentPlugin format detection plugin label uses manifest `name` when no marketplace metadata is present|occurrence=1

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

mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/ 2 tests
- workbench/ 2 tests
  - contrib/ 2 tests
    
    chat/ 2 tests
    
    test/ 2 tests
    
    common/ 2 tests
    
    plugins/ 2 tests
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/workbench/contrib/chat/test/common/plugins/agentPluginFormatDetection.test|title=AgentPlugin format detection falls back to Copilot format when no vendor manifest exists|occurrence=1 Inherited agentPluginFormatDetection.test|title=AgentPlugin format detection falls back to Copilot format when no vendor manifest exists|occurrence=1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/workbench/contrib/chat/test/common/plugins/agentPluginFormatDetection.test|title=AgentPlugin format detection plugin label uses manifest `name` when no marketplace metadata is present|occurrence=1 Introduced here