#184 DSL Test 9: LLM Call Workflow

PROMPT: Create a workflow that calls an LLM (using Anthropic Claude) to generate a haiku about programming, then echoes the response. EXPECTED: tools.llm.call with BOTH provider='anthropic' AND model='claude-sonnet-4-20250514', proper prompt, result_key. NO missing provider/model. VALIDATION: LLM response captured and echoed.