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tdd-refactor-guard - Pre-refactor test coverage safety guard

Verifies test coverage exists before AI modifies existing code

Tags

Updated: 2026-03-23
refactoringtest-driven developmentcode safetytest coveragecode quality

Capabilities

identify refactoring scopecheck test coverageevaluate test qualitygenerate characterization tests

Typical Inputs

source code filestest filestest coverage data

Typical Outputs

refactor guard reportrefactoring verdictcoverage summary

What this skill does

  • identify refactoring scope
  • check test coverage
  • evaluate test quality
  • generate characterization tests
  • provide refactoring decision
  • verify post-refactor tests

Inputs

  • source code files
  • test files
  • test coverage data
  • public API surface
  • refactoring context

Outputs

  • refactor guard report
  • refactoring verdict
  • coverage summary
  • test recommendations

Requirements

  • source code repository access
  • test target access
  • characterization-test-generator skill
  • file system access
  • test execution capability

Source

  • Spec: SKILL.md

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