PRD-021: GovernedSpeed™ Platform Integration

Status: Proposed Version: 1.0 Date: 2025-12-27 Implements ADR: ADR-031 (GovernedSpeed™ Integration Strategy) Related PRDs: PRD-010 (AI Governance Runtime)

1. Executive Summary

This PRD defines the requirements for integrating the GovernedSpeed™ platform (Policy Gateway, Risk & Evidence Service) into the SEA-Forge™ ecosystem. It focuses on enabling “Governance as Code” where policies authored in SEA-DSL are enforced at runtime with zero manual intervention.

2. Problem Statement

Current State

• SEA™ defines governance semantics (CALM, SEA-DSL) but lacks a built-in runtime enforcement engine.
• Governance checks are primarily static (build-time validation).
• No centralized, tamper-proof audit trail for runtime decisions (e.g., prompt blocking, risk assessments).

Desired State

• Runtime Enforcement: Every LLM call is intercepted and validated against policy.
• Unified Authoring: Developers write policies in SEA-DSL; the system enforces them via Policy Gateway.
• Automated Evidence: Every decision is logged to an immutable ledger (Risk & Evidence Service).

3. Goals & User Stories

Epic 1: Policy Enforcement

US-001: Runtime Prompt Filtering

As a Security Officer, I want to block prompts containing PII or Jailbreak attempts before they reach the LLM, So that we prevent data leakage and safety bypasses.

Acceptance Criteria:

• Policy Gateway intercepts POST /v1/chat/completions.
• Evaluates input against active policies (e.g., pii_block, jailbreak_detector).
• Returns 403 Forbidden for violations with specific reason code.
• Latency overhead < 20ms.

US-002: Output Safety Guardrails

As a Product Owner, I want to filter toxic or legally prohibited content from LLM responses, So that end-users are protected from harm.

Acceptance Criteria:

• Policy Gateway evaluates LLM output completion.
• Checks against thresholds (e.g., toxicity < 0.05).
• Redacts or blocks non-compliant responses.

Epic 2: Evidence & Audit

US-003: Immutable Audit Log

As an External Auditor, I want to verify that a specific model decision was compliant with policies active at that time, So that I can certify regulatory compliance (EU AI Act).

Acceptance Criteria:

• Every decision (Pass/Block) is logged to Risk & Evidence Service.
• Records include: Timestamp, Policy Version, Input Hash, Decision, Reason.
• Records are SHA-256 hashed and linked for tamper-evidence.

US-004: CI/CD Policy Gates

As a DevOps Engineer, I want deployment pipelines to fail if model evaluation metrics do not meet policy thresholds, So that we never deploy non-compliant models.

Acceptance Criteria:

• gov-ci-check script runs in pipeline.
• Reads metrics from test reports.
• Blocks deployment if metrics violate thresholds in active policy.

Epic 3: Developer Experience

US-005: SEA-DSL to YAML Compilation

As a SEA™ Developer, I want to define policies using SEA-DSL syntax, So that I maintain a single source of truth for architecture and governance.

Acceptance Criteria:

• sea compile policy command transforms SEA-DSL Policy entities to adr-006 YAML format.
• Compiler validates syntax and references before generation.

4. Functional Requirements

FR-001: Policy Gateway Integration

• The Policy Gateway MUST be deployable as a sidecar or standalone service.
• It MUST support hot-reloading of configuration via adr-006.yaml.
• It MUST implement the OpenAI API compatible interface for transparent proxying.

FR-002: Risk & Evidence API

• The Risk & Evidence Service MUST provide endpoints for:
  • Ingesting events (POST /events).
  • Querying evidence by trace ID (GET /evidence/{id}).
  • Generating compliance snapshots (POST /snapshot).

FR-003: Local Development Support

• Developer environment MUST support running the full governance stack via just gov-start.
• Local database (libSQL/SQLite) MUST be supported for offline development.

5. Non-Functional Requirements

NFR-001: Performance

• Gateway Latency: < 20ms added overhead (P95).
• Throughput: Scale to 1000 RPS per instance.

NFR-002: Reliability

• Fail-Closed: If Policy Gateway cannot reach the policy store or evidence service (configurable), it MUST block the request by default to ensure safety.

NFR-003: Security

• Tamper-Evidence: All audit logs MUST be cryptographically hashed.
• Least Privilege: Gateway requires only read access to policies and write access to evidence.

6. Success Metrics

• Policy Coverage: 100% of production models routed through Policy Gateway.
• Incident Rate: < 1 governance incident per month.
• Audit Time: Evidence gathering reduced from weeks to < 1 hour.