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/fix-tests - Fix Failing Tests

Systematically fix all failing tests after business logic changes or refactoring using orchestrated agents.

Claude Code Knowledge Pack7/10/2026

Overview

/fix-tests - Fix Failing Tests

Systematically fix all failing tests after business logic changes or refactoring using orchestrated agents.

  • Purpose - Update tests to match current business logic after changes
  • Output - Fixed tests that pass while preserving test intent
/fix-tests ["focus area or modules"]

Arguments

Optional specification of which tests or modules to focus on. Defaults to all failing tests.

How It Works

  1. Discovery Phase

    • Reads test infrastructure configuration
    • Runs full test suite to identify all failures
    • Groups failing tests by file for parallel processing
  2. Analysis Phase

    • Verifies ability to run individual test files
    • Understands why tests are failing (outdated expectations vs. bugs)
  3. Fixing Phase

    • Simple changes: Fixes tests directly
    • Complex changes: Launches parallel developer agents per failing test file
    • Each agent:
      • Reads test file and TDD skill
      • Analyzes failure type (expectations, setup, or actual bug)
      • Fixes test while preserving intent
      • Iterates until test passes
  4. Verification Phase

    • Runs full test suite after all agents complete
    • Iterates on any remaining failures
    • Continues until 100% pass rate

Agent Decision Logic:

  • Outdated test expectations: Fix assertions
  • Broken test setup/mocks: Fix setup code
  • Actual business logic bug (rare): Fix logic

Usage Examples

# Fix all failing tests
> /fix-tests

# Focus on specific test files
> /fix-tests user authentication tests

# Fix tests in specific module
> /fix-tests payment module tests

# Focus on integration tests
> /fix-tests integration tests only

Best practices

  • Preserve test intent - Fix assertions, not the behavior being tested
  • Avoid changing business logic - Unless you discover an actual bug
  • Understand before fixing - Know why the test fails before changing it
  • Run full suite - Ensure fixes don't break other tests
  • Review agent changes - Verify fixes maintain test quality