New Rule Completeness Validator

Purpose

When adding a new game rule or rule variant to Sanmill, you need to modify multiple files (typically 70-80 files, including ~60 localization files). This skill provides a completeness checklist to ensure no necessary code changes are missed.

Reference: docs/guides/ADDING_NEW_GAME_RULES.md

Use Cases

• Adding a new game rule variant
• Adding new game mechanics to existing rules (e.g., new capture rules)
• Modifying rule structure or parameters
• Reviewing rule-related pull requests

Architecture Philosophy

Sanmill is configuration-based, not inheritance-based. Rule variants are expressed as data (Rule in C++, RuleSettings in Flutter) and toggled at runtime. Any new mechanics must be gated by booleans/params so existing variants remain untouched and fast.