fealisted

# fea This skill checks early structural strength and stiffness risks for robot-dog virtual prototypes. The MVP consumes FEA case metadata and writes deterministic reports. It does not run a solver yet; it provides a stable file contract for later CalculiX/Gmsh or FreeCAD FEM integration. ## When To Use Use this skill for: - Static stress and safety-factor checks. - Deflection and stiffness checks. - Modal frequency checks against gait excitation. - Drop or landing impact risk summaries. - Producing `fea_report.json` for `robot-dog-digital-twin` gates. ## Workflow 1. Read `<project>/fea_cases.yaml`. 2. Evaluate each part/case against material yield strength, safety factor, deflection, and modal limits. 3. Mark blockers for low safety factor, excessive deflection, or modal frequency too close to gait excitation. 4. Write reports into `<project>/reports/`. ## Commands ```bash python skills/fea/scripts/run_static_case.py skills/fea/examples/quadruped_mvp python skills/fea/scripts/summarize_fea.py skills/fea/examples/quadruped_mvp ``` ## Rules - Keep MVP checks deterministic and conservative. - Treat safety factor below 2.0, deflection above the declared limit, or modal frequency ratio below 2.0 as blockers. - Do not claim this replaces solver-backed FEA or physical load testing. - Do not import sibling subskill code. Read files only. ## References - `references/input-contract.md` for `fea_cases.yaml` fields. - `references/load-cases.md` for MVP case definitions. - `r