codebase-design, domain-modeling and grilling are pulled out as
standalone, model-invoked skills precisely so other skills can point
at them and so you can reach them as a reference independently of the
steps any wrapper mandates. Add a "Pulled out on purpose" section to
each that names who leans on it and why it stands alone, and slim the
overlapping "Where it fits" prose to avoid duplication.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>