score-quality

name	score-quality
description	Score code migration quality based on coverage and correctness. Evaluates how well target code represents source functionality.
license	MIT
compatibility	Requires completed migration with source and target code
triggers	["migration quality","migration score","coverage score","correctness score"]

Evaluate migration quality by scoring coverage and correctness for each source-target file pair.

Prerequisite: A migration mapping file must exist (see migration-mapping skill).

See references/scoring-criteria.md for the 1-5 scoring scales.

Output Format

Save scores as a JSON file:

{
  "source_file_1.cbl": {
    "coverage": 4,
    "correctness": 5,
    "justification": "All calculation logic migrated. Tax rounding matches COBOL behavior."
  }
}

Evaluation Process

For each source file and its mapped target files:

1. Identify key functionality in the source

   • Business logic, data operations, control flow, error handling

2. Check coverage in the target

   • Is each function/paragraph represented?
   • Are all data fields and code paths covered?

3. Verify correctness

   • Do calculations produce the same results?
   • Are edge cases handled the same way?

4. Document justification

   • Specific functionality present/missing
   • Known discrepancies

Incremental Scoring

If a score file already exists, update it with new scores rather than replacing it entirely.