Instruction policy engine for KIVA flows

[satra]

Summary

Build a reusable instruction policy engine for KIVA flows that enforces single-question prompts, contingent follow-ups, minimum instructional expectations, minimum student response expectations, adaptive wait time, and reusable instructional routines.

Scope

• define instruction_policy configuration for activities/flows
• enforce one-question-at-a-time prompt structure
• enforce minimum target vocabulary coverage per session
• enforce minimum student response length thresholds
• add adaptive supports such as modeling and sentence starters
• maintain consistent routines across sessions via structured policy, not prompt text alone

Deliverables

• PolicyEngine runtime component
• policy configuration schema
• flow hooks for contingent follow-up validation and wait-time control
• event logging for policy interventions

Testing

• policy rule evaluation tests
• replay tests for contingent follow-up behavior
• flow tests for minimum instructional coverage and response-support escalation

Dependencies

• depends on shared contract work