Intent of toolInstructions.test|title=toolInstructions toolSearchInstructionLines folds the tool-search line into an existing per-model override only while active|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
    
    node/ 2 tests
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/agentHost/test/node/agentHostPromptRegistry.test|title=AgentHostPromptRegistry tool search instructions wiring composes the tool-search line with a per-model tool_instructions override|occurrence=1 Inherited agentHostPromptRegistry.test|title=AgentHostPromptRegistry tool search instructions wiring composes the tool-search line with a per-model tool_instructions override|occurrence=1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/agentHost/test/node/toolInstructions.test|title=toolInstructions toolSearchInstructionLines folds the tool-search line into an existing per-model override only while active|occurrence=1 Introduced here