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Blueprint: The Policy Governance Model (The Reasoning Layer)

ID: 02_C_POLICY_MODEL Status: PROPOSED Layer: Governance

1. Executive Summary

This blueprint defines the architecture for Business Logic Sovereignty. It establishes that "Policy" is a first-class citizen, distinct from "Code". Code is the muscle; Policy is the instruction; AI is the judgement.

1.1 The Trifold Purpose

This Blueprint serves a dynamic, bi-directional role in the system lifecycle:

  1. Forward (Intent): It prescribes how the system should be built, defining the "Reasoning Layer".
  2. Backward (State): It reflects how the system is built, acting as the map for the "Enforcer" implementation.
  3. Evolutionary (Basis): It provides the stable foundation to define and evaluate future changes (The Gap Analysis).

2. The Tri-Partite Enforcement Model

We classify all system rules into three enforcement levels based on their required flexibility and determinism.

Level Governor (Source) Description Example
L1 HARD_CODE Immutable physics of the system. Enforced by Compiler/Runtime. "User ID must be a UUID."
L2 RUNTIME_POLICY Configurable logic. Enforced by PolicyEngine reading policies.json. "Lease max duration is 12mo."
L3 AI_ARBITER Subjective reasoning. Enforced by LLM/Vision Models interacting with Policy. "Is this PDF a valid Deed?"

3. The Analog Twin Architecture

The "Truth" of the business lives in Data, not Code.

graph TD
    A[The Business] -->|Defines| B[Analog Twin (policies.json)]
    B -->|Configures| C[Policy Engine (Service)]
    C -->|Enforces| D[Application Logic (Code)]
    C -->|Guides| E[AI Arbiter (LLM)]
    D -->|Executes| F[Database / API]
    E -->|Validates| F

4. Integration Strategy

  1. Rule Definition: Rules are added to generated/policies.json.
  2. Documentation: perform_mri.ts auto-generates 01_RULEBOOK.md for human audit.
  3. Code Adoption: Services (e.g., OwnershipService) query the PolicyEngine at runtime.
  4. AI Reasoning: The AI is fed the rules/policy-engine.ts definitions to understand its constraints.

5. Traceability

  • Source of Truth: generated/policies.json
  • Documentation: documentation/06_product/rules/01_RULEBOOK.md
  • Code Implementation: packages/modules/community/src/rules/policy-engine.ts

Version History

Version Date Author Change
0.1.0 2026-01-26 Antigravity Initial Audit & Metadata Injection