/eval — Langfuse Evaluation Pipeline Generator

Generate evaluation setup for: $ARGUMENTS

1. Discover — agents/eval-architect.md Step 1: Explore codebase, detect LLM app type (RAG, chatbot, agent, code-gen, summarization, classification, extraction), identify prompts, traces, and data flows
2. Design — agents/eval-architect.md Steps 2-3: Select 4-8 eval dimensions from the dimension matrix, generate seed dataset with 10-20 items covering happy path, edge cases, and adversarial inputs
3. Generate — agents/eval-architect.md Steps 4-5: Write complete evals/ directory: config.yaml, evaluators (LLM judge + heuristic), runner.py, ci_eval.py, .env.example
4. Setup — agents/eval-architect.md Step 6: If LANGFUSE_SECRET_KEY is set, run setup_langfuse.py. If not, skip gracefully with instructions.
5. Document — agents/eval-architect.md Step 7: Generate PM/SME-friendly README
6. Verify — Run verification checklist

Rules: Always include at least one heuristic evaluator. Never hardcode API keys. README must be understandable by non-developers.