Summary

Ensure comprehensive fixture coverage for all rule categories.

Rule Families Needing Fixtures

• AGM (AGENTS.md rules) - verify coverage
• MCP (after Implement MCP validator: MCP-001 to MCP-006 #39 implemented)
• PE (after Implement prompt-engineering validator: PE-001 to PE-004 #40 implemented)
• REF (after Implement reference validator: REF-001 to REF-002 #43 implemented)
• XML (verify coverage)
• XP (after Implement cross-platform validator: XP-001 to XP-003 #41 implemented)

Deliverables

• Positive cases (valid files) for each family
• Negative cases (triggering each rule) for each family
• Document fixture conventions in tests/fixtures/README.md

Blocked By

• Implement MCP validator: MCP-001 to MCP-006 #39 MCP validator
• Implement prompt-engineering validator: PE-001 to PE-004 #40 PE validator
• Implement cross-platform validator: XP-001 to XP-003 #41 XP validator
• Implement reference validator: REF-001 to REF-002 #43 REF validator