Iterative evaluation of Fusion Framework MCP search quality against documented domain patterns. Loads domain files from eval/index/, queries Fusion MCP for each pattern, validates recall against must/should requirements, and produces a human-readable pass/fail report. USE FOR: eval core, eval all, evaluate MCP index accuracy, validate search recall for a domain, check index freshness. DO NOT USE FOR: writing domain patterns, populating eval/index/ files, running CI pipelines, or batch automation.