1. src/types.ts:68 - added optional expires?: string field to AccountAgeCheck interface 2. src/rules/account/age.ts:117-128 - added logic to skip expired checks by comparing current date against expires date 3. src/rules/account/ageConstants.ts:24 - updated example to show how to use the new field 4. added 3 tests to verify: - expired checks are skipped - non-expired checks still work - checks without expires field work (backward compatible)