Import And Export Rules

Use this file only for import/export, file format, parser, serializer, or engine export tasks.

Scope

• Inspect the existing import/export path before editing.
• Reuse existing parsers, serializers, schema types, and validation helpers.
• Keep format changes backward compatible unless the user asks for a breaking change.

Safety

• Preserve user data on malformed input.
• Validate trust boundaries and return actionable errors.
• Add one focused fixture or sample only when it proves the changed format behavior.

Verification

• Run the narrowest relevant parser/export test first.
• Broaden to engine/export integration checks only when shared export behavior changes.