# Phase 1.0CJ: native SDK stage design gate

Status: `NATIVE_ROOT_CLEAN_FULL_SDK_TREE_BOUND_STAGE_DESIGN_ALLOWED`

Date: 2026-07-30

The CI cleanup left the exact native root absent. The pinned SDK contains 2,923
regular files, no symbolic links and 29,406,271 bytes. A normalized read-only
tar stream binds the entire tree, not merely selected files.

CJ permits source implementation and fake tests for one exclusive native SDK
copy followed by normalized tree verification. The build must reference only
the verified native copy. No copy, CMake invocation, build, export, target or
device action is authorized under CJ.