Migration Validator Skill

Validates functional equivalence between source and target systems after migration through comprehensive comparison and behavioral verification.

Purpose

Enable migration validation for:

• Side-by-side comparison
• Output diffing
• Behavioral verification
• Data consistency checking
• Acceptance criteria verification

Capabilities

1. Side-by-Side Comparison

• Run parallel requests
• Compare responses
• Track differences
• Document discrepancies

2. Output Diffing

• Compare API responses
• Diff file outputs
• Check data formats
• Validate transformations

3. Behavioral Verification

• Test user flows
• Verify business logic
• Check edge cases
• Validate error handling

4. Data Consistency Checking

• Compare data states
• Verify calculations
• Check relationships
• Validate constraints

5. Integration Validation

• Test external integrations
• Verify API contracts
• Check message flows
• Validate events

6. Acceptance Criteria Verification

• Check feature completeness
• Verify requirements
• Validate user stories
• Document coverage

Tool Integrations

| Tool | Purpose | Integration Method | |------|---------|-------------------| | Diffy | Response comparison | API | | Contract testing | API verification | CLI | | Cypress | E2E validation | CLI | | Playwright | Browser testing | CLI | | Custom validators | Business rules | CLI |

Output Schema

json
{
  "validationId": "string",
  "timestamp": "ISO8601",
  "source": {
    "environment": "string",
    "version": "string"
  },
  "target": {
    "environment": "string",
    "version": "string"
  },
  "results": {
    "total": "number",
    "passed": "number",
    "failed": "number",
    "skipped": "number"
  },
  "comparisons": [
    {
      "test": "string",
      "status": "passed|failed",
      "source": {},
      "target": {},
      "differences": []
    }
  ],
  "acceptance": {
    "criteria": [],
    "met": "boolean"
  }
}

Integration with Migration Processes

• migration-testing-strategy: Validation execution
• parallel-run-validation: Parallel comparison

Related Skills

• performance-baseline-capturer: Performance comparison
• data-migration-validator: Data validation

Related Agents

• parallel-run-validator: Parallel validation
• regression-detector: Regression detection