Expand the Duplicate Avoidance section from a 3-step placeholder into a
comprehensive 6-step process to prevent the 48+ duplicate TEST-INFRA issues
observed across 8 topic clusters.
Key additions:
- CRITICAL blockquote: when in doubt, skip
- Keyword extraction before filing
- Keyword-based search (open AND closed issues, not just TEST-INFRA: prefix)
- Semantic comparison with concrete examples
- Cross-agent prefix checking (TEST-INFRA:, BUG-HUNT:, UAT:)
- Post-filing verification with 5-second delay for race condition handling
- Duplicate Check audit section requirement in every filed issue body
ISSUES CLOSED: #2370
HAL9000