The definitions in this directory are shared by the Fuchsia platform (in-tree) workspace, as well as other out-of-tree Bazel based projects. In other words:
They MUST NOT depend on definitions outside of this directory.
They should not assume to be in any specific workspace (so no explicit reference to @fuchsia_sdk or @fuchsia_workspace should exist in this directory. Instead, repository labels should be provided as repository / function arguments explicitly and specified by the callers.