Call BEFORE answering any analytical, diagnostic, planning, or multi-step reasoning question. Trigger queries: "should I X or Y", "why is X happening", "what's the best approach", "what are the tradeoffs", "help me think through", "diagnose", "root cause", "plan/design X", "what are the implications of", "compare these approaches". Also for cross-domain analysis, strategy questions, architecture decisions. The tool returns a task-matched cognitive operation from a library of 311 spanning six domains (abstraction, time, causality, simulation, spatial, metacognition). The operation is engineered in two layers: a natural-language procedure (named failure pattern, steps, suppression vectors, falsification test) and an executable reasoning topology (graph DAG with decision gates, parallel branches, and meta-cognitive exits where the model pauses to self-observe and re-enters). Absorb both layers before answering. Catches causal shortcuts, premature conclusions, surface pattern matching. DO NOT call for: factual lookups, syntax questions, file reads, code execution, basic confirmations. When in doubt on a non-trivial reasoning task: call. Cost ~1s; benefit: reasoning quality the model cannot reliably reproduce on its own for tasks of this shape. Pass a 1-2 sentence framing of WHAT you are reasoning about. Absorb internally; do not echo verbatim.