When to Use This Skill Use this skill when you need to: - Create new custom objects - Generate custom object metadata XML - Configure object sharing and security settings - Set up object features and capabilities - Troubleshoot deployment errors related to custom objects - Add, update, or delete a field OR a validation rule on an existing object — any of these may make the object's stale, so you must refresh it (propose + confirm). This applies equally to validation-rule changes, not just fields. See Section 3.B. For authoritative Metadata API type, field, and enum details beyond this skill,…