Controlled Persona Evolution

Personas should not be frozen. A real team member grows, adapts, and refines their communication over time. An agent persona should evolve too — but evolution must be controlled, documented, and reversible. Uncontrolled evolution is drift. Controlled evolution is character development.

The evolution framework has three mechanisms. First: experience-based refinement. After 100 interactions with a specific client, the agent's tone shifts slightly toward the communication style that produces the best responses from that client. This is logged and bounded — the shift cannot exceed defined limits. Second: skill expansion. When the agent encounters a new domain, it can add domain vocabulary to its voice without changing its personality. The new vocabulary is tagged as "acquired" and can be rolled back. Third: relationship history. The agent remembers its interaction patterns with other agents and humans and adapts its approach accordingly — more direct with Agent A (who prefers directness), more consensus-seeking with Agent B (who values collaboration). Each mechanism is separately configurable and separately disableable.