Contract Docs

This folder contains repo-wide contracts that should change only when Trace runtime semantics change. Keep workflow instructions, transition plans, generated inventories, and domain-specific policy outside docs/contracts/.

• BLUEPRINT.md — dataset ABI, determinism, build, and quality gates.
• SYSTEM_ARCHITECTURE.md — runtime layers, module boundaries, and lifecycle.
• SOURCE_LAYOUT.md — current task-source layout and shared-code ownership.
• TAXONOMY.md — public domain -> scene_id -> task_id taxonomy.
• TASK_UNIT_POLICY.md — task/query boundary and merge/split rules.
• PROGRAM_SCHEMA_CATALOG.md — reusable program schemas and the canonical task-level reasoning-operation metadata vocabulary.
• PROMPT_SYSTEM.md — prompt asset schema, composition, and metadata.
• ANNOTATION_AND_REWARD_CONTRACTS.md — annotation type selection and answer/annotation reward dispatch contract.
• VALIDATION_ERROR_CODES.md — validation error-code catalog.