The split that has worked best for me is to keep agent instructions about intent and workflow, then move anything mechanically checkable into tests, linters, or

The split that has worked best for me is to keep agent instructions about intent and workflow, then move anything mechanically checkable into tests, linters, or build gates. More rules in context are not enforcement. For a central skills repository I would also record the exact rules revision in each run or generated artifact. Otherwise a failed run becomes hard to reproduce after the shared repository changes. It would be useful if each skill declared which claims are advisory and which are backed by a command the agent can execute and verify.