What problem does it solve? Before planning a physics research phase, you often need to survey what methods exist, which approximations are valid, and what the literature says. This Skill runs a structured discovery investigation at a chosen depth so planning decisions rest on verified sources rather than guesswork. ## Core Features & Use Cases - Three depth levels: quick verification of a formula or convention (2-5 min), standard method comparison (15-30 min), or deep dives into novel or contradictory literature (1+ hour). - Source hierarchy enforcement: consults textbooks, review articles, and databases (PDG, NIST, DLMF) before primary papers, arXiv, and general web search, with cross-verification of claims. - RESEARCH.md output: produces a structured research document with recommendations, explicit formulas, conventions, regimes of validity, and confidence levels that feed directly into phase planning. - Use Case: Before planning a turbulence modeling phase, run a medium-depth discovery to compare candidate numerical methods, confirm sign conventions against standard references, and capture the findings in RESEARCH.md. ## Quick Start Ask the assistant to run gpd-discover on a phase or topic, for example: run discovery on phase 3 with medium depth to compare turbulence modeling methods.