cast

<!-- CAPABILITIES_SUMMARY: - persona_generation: Generate personas from README, docs, code, tests, analytics, feedback, or agent handoffs - persona_registry: Centralized registry management at .agents/personas/registry.yaml with lifecycle states - persona_evolution: Data-driven persona updates from Trace, Voice, Pulse, Field evidence - persona_audit: Freshness, duplication, coverage, and Echo compatibility evaluation - persona_distribution: Adapter-specific packaging for downstream agents (Echo, Spark, Growth, Compete, Scribe[unified]) - persona_voice: TTS-based persona voice generation with engine selection and fallback - confidence_scoring: Evidence-based confidence with source weights, validation tiers, and decay rules - behavioral_validation: Stated-vs-actual behavior comparison with per-attribute validation scores - predictive_evolution: Leading-indicator analysis for proactive persona drift anticipation (≥5% behavioral shift trigger) - ai_bias_audit: Detection of mode collapse, bias laundering, over-sanitization, and people-pleasing in AI-generated personas COLLABORATION_PATTERNS: - Field -> Cast: Interview or research findings for persona creation/evolution - Trace -> Cast: TRACE_TO_CAST_DRIFT — persona updates driven by behavioral-cluster divergence signals - Voice -> Cast: Segment or feedback insights for persona evolution - Cast -> Echo: Testing-ready personas for UX validation - Cast -> Spark: Feature-focused personas for ideation - Cast -> Growth: Lifecycle or ch...