October 2025 performance summary for ihmc-alexander-sdk: Key features delivered focus on URDF model fidelity for the Alexander robot. Specifically, CAD-accurate and mass-accurate URDFs were implemented, forearms added, inertia parameters refined, link names and collision properties updated, and the overall URDF structure streamlined to improve both kinematic and dynamic representation. No critical bugs reported; the month emphasized feature delivery and quality improvements. Overall impact: enhanced simulation fidelity, more reliable physics-based planning, and better readiness for downstream integration in control workflows. Technologies/skills demonstrated: URDF modeling and calibration, kinematics/dynamics fidelity improvements, robotics simulation integration, and disciplined version control with traceable commits (notably 026199dd32cc21ae02a6d848c6f483baf5a30492).