Intent of Cycle D3) accepts the canonical 5-value union, rejects anything else|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
- platform/ 2 tests
  - agentHost/ 2 tests
    
    test/ 2 tests
    
    common/ 1 test
    
    claudeModelConfig.test|title=isClaudeEffortLevel (Phase 6.1 / 1 test
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/agentHost/test/common/claudeModelConfig.test|title=isClaudeEffortLevel (Phase 6.1 / Cycle D3) accepts the canonical 5-value union, rejects anything else|occurrence=1 Introduced here
    
    node/ 1 test
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/agentHost/test/node/claudeAgent.test|title=ClaudeAgent fromSdkModelInfo projects ModelInfo without commercial metadata and reuses the effort schema|occurrence=1 Inherited claudeAgent.test|title=ClaudeAgent fromSdkModelInfo projects ModelInfo without commercial metadata and reuses the effort schema|occurrence=1