- VM smoke: phase283_p0_loop_if_phi_vm.sh (checks sum=9 output) - LLVM smoke: phase283_p0_loop_if_phi_llvm.sh (checks Result: 0, exit=0) - Documentation: Update phase-283 README with LLVM harness notes - LLVM harness suppresses program stdout - VM shows stdout, LLVM checks exit code only Both tests verified: ✅ PASS 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>