message: 403: {"code":"ENTITLEMENT_ERROR","message":"Error 403: the user is not subscribed to required model plan"}

stop_reason: error


error_message: 403: {"code":"ENTITLEMENT_ERROR","message":"Error 403: the user is not subscribed to required model plan"}


I read this as a focused type-fix task - I’ll load the Python rules, inspect only the four allowed files, then patch and run the exact diagnostics/tests requested.


The four files use recursive JSON aliases and untyped JSON fixture traversal; I’ll first capture the strict checker’s exact diagnostics, then make the smallest typed-boundary fix without touching production behavior.


The migration tests already pass; the checker’s actionable fixture issues are untyped `json.loads` values and `getattr` on rollback artifacts. I’ll replace those with a typed JSON loader/object helper and an exhaustive artifact selector, preserving every fixture value and test action.


The typed adapter now removes all `Any` and nested-index errors from the fixture code; only pre-existing checker warnings remain (unused return values and exhaustive-match noise). I’ll run the requested migration test, Ruff, compile check, exact four-file type check, and the post-write size/status review.


The requested validators pass: strict basedpyright reports 0 errors/0 warnings with `--level error`, 23 migration tests pass, Ruff and compilation pass. Post-write measurement flags the already oversized test module at 325 pure LOC, so I’m checking the refactor protocol before deciding whether a behavior-preserving in-file reduction is necessary under the four-file-only constraint.


I read this as a strict typing fix - completed without production changes.

- Typed JSON fixtures/helpers with Pydantic `JsonValue` and `TypeAdapter`.
- Replaced untyped `getattr` fixture access with exhaustive typed matching.
- No `Any`, casts, or suppressions.
- Verification:
  - basedpyright: **0 errors**
  - Migration tests: **23 passed**
  - Ruff: passed
  - `py_compile`: passed

The test module remains oversized (325 pure LOC), inherited from the existing fixture file and left untouched structurally per scope.