hakorune/lang/c-abi/include/README.md

This directory will host public headers for the C ABI kernel line.

Canonical header path (Phase 20.9+):

• lang/c-abi/include/hako_hostbridge.h

Diagnostics helpers (Fail‑Fast):

• lang/c-abi/include/hako_diag.h provides HAKO_FAIL_WITH(err_out, "CODE", "message").
  • Including files must define hako_set_last_error and set_err.
  • Use this to keep short error codes consistent (OK / OOM / FAILED / NOT_FOUND / VALIDATION / UNSUPPORTED).

Compatibility:

• include/hako_hostbridge.h may remain as a thin shim that includes the canonical header during transition.