Phase 6 establishes the enforcement substrate of ACP.

In this phase, we moved from a system that could demonstrate governed behavior to a system that enforces it.

Key outcomes:

  • Fail-closed governance
    The system no longer proceeds under uncertainty. Missing modules, artifacts, or retrieval failures result in explicit refusal rather than silent fallback.
  • Unconditional core loop enforcement
    Integrity checks and refusal behavior are no longer dependent on optional routing metadata or initialization state. Governance is now non-bypassable within the defined execution path.
  • Formal refusal and decision recording
    Violations produce structured artifacts (Claim + DecisionEvent) with enforced rationale and immutable records, enabling traceability and audit.
  • Deterministic artifact and registry behavior
    Module resolution, artifact versioning, and hashing operate under consistent constraints, with alignment between application models and database enforcement.
  • Failure-path verification
    Tests now cover not only success cases but also failure and exception paths, ensuring that enforcement holds under adverse conditions.
  • Integrated system validation
    The merged Phase 6 system has been verified end-to-end, confirming that routing, promotion, enforcement, and persistence behave correctly together.

What Phase 6 does not claim

Phase 6 does not introduce full reasoning capabilities or autonomous judgment.

It does not eliminate the need for verification or human oversight.

Instead, it ensures that:

any reasoning performed by the system is bounded by enforceable constraints and cannot silently bypass governance.

What changes after Phase 6

With Phase 6 complete:

  • verification shifts from conversational back-and-forth to structured, system-supported checks
  • enforcement is embedded in the system rather than assumed in process
  • failures become explicit, traceable events rather than implicit behaviors

This creates a stable foundation for Phase 7.

Transition to Phase 7

Phase 7 builds on this substrate by introducing:

  • retrieval-backed awareness of project state
  • structured claim construction
  • evidence-bound reasoning
  • tighter integration between analysis, verification, and artifact generation

If Phase 5 made governance visible,
Phase 6 makes it enforceable,
and Phase 7 will make it actionable.

Bottom line

Phase 6 established:

governance is not a convention, but a constraint.

That is the state we have now established.