We split this skill into the rules it gives an agent

9 rules. About 0 are common, 4 are distinctive, and 5 are very specific to this project.

• ≈0

  Common · estimate

  Many files like this have a rule of this kind.

• ≈4

  Distinctive · estimate

  This author's own choices. Worth a look.

• 5

  Very specific

  Tied to their project's names, files or tools. Probably skip.

• Common
• Distinctive
• Very specific

1. Distinctive:

   Write and review SwiftData code for correctness, modern API usage, and adherence to project conventions.

   line 14
2. Distinctive:

   Prefer SwiftData across the board.

   line 19
3. Distinctive:

   Do not introduce third-party frameworks without asking first.

   line 20
4. Very specific:

   Check for core SwiftData issues using references/core-rules.md.

   line 24
5. Very specific:

   Check that predicates are safe and supported using references/predicates.md.

   line 25
6. Very specific:

   If the project uses CloudKit, check for CloudKit-specific constraints using references/cloudkit.md.

   line 26
7. Very specific:

   If the project targets iOS 18+, check for indexing opportunities using references/indexing.md.

   line 27
8. Very specific:

   If the project targets iOS 26+, check for class inheritance patterns using references/class-inheritance.md.

   line 28
9. Distinctive:

   If doing partial work, load only the relevant reference files.

   line 30

≈ “Common” is an estimate: at least 1 in 5 of the 350,495 skill files we read have a rule of the same kind, not the same words. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.