[0.2.0] - 2025-02-14

Changed

• BREAKING: --validate now performs license identification instead of strict validation
  • Returns status: "identified" instead of status: "validated"
  • Returns status: "unknown" instead of status: "unmatched"
  • Includes confidence scoring (0.0-1.0) and fingerprint match counts
  • More lenient: works even when users add custom headers or modify formatting
• Replaced regex-based license validation with fingerprint-based identification
• Improved accuracy with distinctive phrase matching per license

Added

• Confidence scoring for license identification
  • confidence: decimal score (0.0-1.0)
  • confidencePercent: human-readable percentage (e.g., "100%")
  • matchedFingerprints: number of matched distinctive phrases
  • totalFingerprints: total distinctive phrases for the license
• Fingerprints (distinctive phrases) for all 10 supported licenses
  • MIT: 3 fingerprints
  • Apache-2.0: 4 fingerprints
  • BSD-3-Clause: 3 fingerprints
  • BSD-2-Clause: 3 fingerprints
  • ISC: 3 fingerprints
  • MPL-2.0: 3 fingerprints
  • LGPL-3.0-only: 4 fingerprints
  • GPL-3.0-only: 4 fingerprints
  • GPL-3.0-or-later: 4 fingerprints
  • Unlicense: 3 fingerprints

Fixed

• BSD-2-Clause and BSD-3-Clause no longer falsely match each other
  • BSD-3-Clause uses full "Neither the name...endorse or promote" clause
  • BSD-2-Clause uses "Redistributions in binary form" phrase
• ISC license no longer matches "DISCLAIMER" in other licenses
  • Replaced generic "ISC" fingerprint with distinctive "with or without fee"
• GPL-3.0-or-later better distinguished from GPL-3.0-only
  • Added 4th fingerprint "How to Apply These Terms to Your New Programs"
• Performance: .toLowerCase() now called once instead of per-fingerprint iteration

Removed

• buildLicenseRegex() function (replaced by fingerprint matching)
• validateExistingLicense() function (replaced by identifyLicense())
• Regex-based template matching logic

Documentation

• Updated README.md to describe identification instead of validation
• Updated docs/AGENTS.md with new JSON response schema
• Updated docs/CLAUDE.md with identification usage
• Updated --validate help text to say "Identify existing LICENSE file"