Contracts

5 JSON Schemas that constrain artifact shapes across the framework.

• artifact.schema.json — generic artifact envelope
• checkpoint.schema.json — phase-level checkpoint (pipeline)
• handoff-capsule.schema.json — inter-agent handoff payload
• intent-classification.schema.json — Cortex output
• skill-output.schema.json — output shape from any skill invocation

These are loaded by src.pipeline.types and validated at every contract boundary. Constitutional Rule 13 — "ALWAYS validate against CONTRACTS/*.schema.json before producing artifact."