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Introduces a Python binding experiment using stable ABI (ABI3) for forward compatibility across Python 3.10+. Key features include custom Python limited API headers (no python3-dev dependency), buffer protocol implementation for zero-copy NumPy array access, and RAII + reference counting memory management. The binding provides: - Custom py_limited_api.h for Python 3.10+ stable ABI declarations - Stage, Prim, Value, and ValueArray classes with buffer protocol - GeomMesh to NumPy example demonstrating array extraction - uv-based environment setup for fast dependency installation - Multiple build methods (setup.py, CMake, Makefile) - Comprehensive documentation (README, QUICKSTART, DESIGN, REFERENCE) Location: sandbox/abi3/ 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>