Changelog [1.1.0] - 2025-01-XX Changed Frontmatter: Changed tools: to allowed-tools: format for Claude Code compatibility Description: Added activation keywords and NOT clause for precise skill triggering Structure: Implemented progressive disclosure with /references/ directory Added /references/hrv-metrics.md - Time/frequency domain calculations, EmotionalStateMonitor /references/alexithymia-assessment.md - TAS-20 details, emotion vocabulary ladder /references/training-protocols.md - HRVBiofeedbackTraining, case example Anti-Patterns section: Common mistakes (treating HRV as absolute, ignoring context, etc.) When to Use This Skill section: Clear use/not-for guidance Removed Redundant code examples (moved to references) Detailed case study (moved to training-protocols.md) Extensive tool/app lists (condensed) Metrics Line reduction: 550 → 141 lines (74% reduction) Reference files created: 3 Anti-patterns documented: 4