Test Gap Analysis

Pseudo-mutation analysis ONLY: find caller-visible production-code changes that existing assertions would not catch, then optionally close verified gaps. Activate only when the request asks whether a bug/change/mutation could survive, names behavioral blind spots, or asks for missing edge cases tied to production behavior. Polyglot. DO NOT USE FOR: suite organization, taxonomy, metadata, or distribution reports (test-tagging); .NET line-vs-branch or Cobertura interpretation, arithmetic, plateaus, project-wide coverage gaps, or coverage-backed test/CRAP priorities (coverage-analysis; use native coverage tooling outside .NET); named-target CRAP (crap-score); new suites (code-testing-agent); assertion/smell audits; or mutation tools.