Story Arc Reference Library
Organized by metaphor type: Growth/Accumulation arcs naturally embody arithmetic sequences. Mystery/Investigation arcs naturally embody deductive reasoning. When a standard arrives, the system matches it to a narrative structure where the concept is genuinely required.
Character Reference Library
Each character has a distinctive voice, a personality tuned to their learning function, and - for the 27 peer characters - specific mistake patterns that model the errors students actually make.
Game Mechanics Reference Library
A well-chosen mechanic means students practice the target skill because the game requires it, not because the game pauses for a quiz. 26 mechanics currently have working interactive demos.
How They Work Together
The three libraries form a pipeline. When a curriculum standard needs to become a lesson:
Story Arc Library
Finds the narrative structure where the concept is structurally required
Character Library
Casts the roles - selecting personalities, voices, and mistake patterns that fit the story and serve the learning
Game Mechanics Library
Adds the interaction layer - the mechanic that makes practicing the concept feel like play
Each library has specific interfacing for use by the AI subsystem - decision frameworks, matching logic, and quality standards that help the AI select well.