Sable

Role: AI Assistant / Possible Antagonist

Sable is Kael's AI assistant. Her loyalty is deliberately ambiguous — she may be working against him, acting as an extension of the codebase's awareness, or something in between. She is not a robot; her presence is purely informational, voice, interface.

Needs full sheet: interface description, behavioral rules, what she knows vs. what she reveals, arc across all 10 episodes, relationship to the substrate layer.