typing skill improvements

docs/skills/python-typing/SKILL.md

@@ -24,6 +24,7 @@ Use this skill to enforce a latest-syntax-first typing standard grounded in curr
 Load references only when needed:
 - Source map and standards links: [typing source map](./references/index.md)
 - Practical review workflow and quality gates: [typing review workflow](./references/review-workflow.md)
+- Astral ty adoption and operation guidance: [Astral ty usage reference](./references/astral-ty.md)
 
 ## When to Use
 
@@ -44,19 +45,22 @@ Load references only when needed:
 
 - Baseline and compatibility checks: [typing source map](./references/index.md)
 - Exact modernization sequence and branching logic: [typing review workflow](./references/review-workflow.md)
+- Integrating or tuning Astral ty: [Astral ty usage reference](./references/astral-ty.md)
 - Need official rationale for a specific feature: [typing source map](./references/index.md)
 
 ## Load Order
 
 1. Start with [typing source map](./references/index.md) for authoritative links.
 2. Load [typing review workflow](./references/review-workflow.md) to execute the review.
-3. Return to source links for any feature-level recommendation included in the final output.
+3. Load [Astral ty usage reference](./references/astral-ty.md) when the workflow includes `ty` setup, configuration, migration, or editor integration.
+4. Return to source links for any feature-level recommendation included in the final output.
 
 ## Load Budget
 
 1. Default: load one reference (`index.md`) for lightweight guidance.
 2. Standard review: load two references (`index.md` and `review-workflow.md`).
-3. Do not load additional docs unless a project-specific edge case requires it.
+3. Add `astral-ty.md` only when `ty` is in scope.
+4. Do not load additional docs unless a project-specific edge case requires it.
 
 ## Decision Baseline