We have decided to delay giving commit access to GitHub - apple/llvm-project: The LLVM Project is a collection of modular and reusable compiler and toolchain technologies. This fork is used to manage Apple’s stable releases of Clang as well as support the Swift project., as @mishal_shah and I are still verifying that PR testing infrastructure and CI is working as expected with the monorepo. The commit access will be restored tomorrow after the final CI and PR testing checks are performed.
Please see this reply in the monorepo thread for more details about the transition work that happened today: LLVM monorepo transition happening on Thursday, the 17th of October - #11 by Alex_L .