Problem Map 3.0 maps failure cascades

This is a useful shift from trace reading to first-cut triage. The value is not in more signals, but in forcing teams to encode how failures propagate so root cause selection stops being guesswork.

• –Route-first resolution makes multi-failure triage more deterministic when several symptoms appear at once.
• –Keeping the atlas as a fixed map plus router pack makes the first repair move easier to validate than asking an LLM to narrate the failure.
• –It's especially relevant for RAG and agent pipelines, where one bad retriever, tool step, or state decision can snowball downstream.
• –The big risk is maintenance: a manual atlas is only as good as its coverage and edge definitions, so bad taxonomy work can produce crisp but wrong explanations.
• –This looks more like a debugging ontology than a generic observability tool, which is exactly why it could be useful.