The saving grace of Claude Code skills is that when writing them yourself, you can give them frontmatter like "use when mentioning X" that makes them become relevant for very specific "shibboleths" - which you can then use when prompting.
Are we at an ideal balance where Claude Code is pulling things in proactively enough... without bringing in irrelevant skills just because the "vibes" might match in frontmatter? Arguably not. But it's still a powerful system.
For manual prompting, I use a "macro"-like system where I can just add `[@mymacro]` in the prompt itself and Claude will know to `./lookup.sh mymacro` to load its definition. Can easily chain multiple together. `[@code-review:3][@pycode]` -> 3x parallel code review, initialize subagents with python-code-guide.md or something. ...Also wrote a parser so it gets reminded by additionalContext in hooks.
Interestingly, I've seen Claude do `./lookup.sh relevant-macro` without any prompting by me. Probably due it being mentioned in the compaction summary.
Are we at an ideal balance where Claude Code is pulling things in proactively enough... without bringing in irrelevant skills just because the "vibes" might match in frontmatter? Arguably not. But it's still a powerful system.