Phantasy is the internal runtime layer for Rally and future AI-native character products. The goal is to make characters durable systems instead of prompt wrappers: identity, memory, tools, workflows, approvals, operations, and product surfaces in one engine.
What It Proves
- Agent runtime and operator surface design for character-led products.
- Tool governance, approval modes, workspace scaffolding, local setup, and runtime boundaries.
- Product boundary discipline: Rally owns consumer-specific affection, dates, purchases, and launch gating; Phantasy owns reusable runtime behavior.
Why It Matters
The core thesis is that AI-native characters need an engine layer. A model call can produce text, but the product needs continuity, private state boundaries, tool permissions, operator control, and a way to ship character-specific workflows without turning every app into a custom one-off.
Current Role In The Stack
Phantasy is the engine. Rally is the product and first playable proof. Party Quest and Boss Raid are advanced orchestration layers, not the default public story for this sprint.