Execution Control Architecture (Public Draft)

Execution Control Architecture

Execution Control Architecture (V1.0) for external understanding and technical evaluation.

Execution authority is separated from software control.

Execution proceeds only when every required gate is satisfied.

For a more visual introduction to Havenlon's execution boundary, meet Mod. Meet Mod

Execution Authority Model

Execution = Access ∧ Decision ∧ SOP

Execution only occurs when all independent control layers agree.

No single component can independently authorize execution.

Execution Validity Conditions

Execution condition power model

Execution requires:

Verified identity (Access)
Finalized decision (Decision)
Complete execution path (SOP)

Failure of any condition MUST block execution.

Execution Control Principles

These principles define the trust boundary and control semantics of the system.

For the formal theory behind Execution Control, Physical Trust Boundary, Final Veto, and Fail Secure, read the AI Execution Engineering treatise. Read AI Execution Engineering

Non-Bypassability

Execution path MUST NOT be bypassed or skipped.

No component can skip required validation stages.

No shortcut to execution exists in the system.

Communication/Decision Separation

Communication MUST NOT imply authorization.

Only decision logic can grant execution.

Transport does not imply trust.

Dual Policy + Veto

Execution MUST require multi-layer approval.

Any layer MAY veto execution.

Any layer can veto; no single layer can execute.

Normative Specification (Public)

Detailed constraints for architecture review, compliance, and implementation audits.

Execution authority model
SOP (Unidirectional 4-Stage Chain)

Execution MUST follow a unidirectional, non-skippable chain.

Stage 1

Initiation

Mandatory verification

Stage 2

Cloud Audit

Mandatory verification

Stage 3

Authorization

Mandatory verification

Stage 4

Hardware Execution

Final execution adjudication

  • All critical operations MUST pass the full chain
  • If any stage is missing, operation MUST NOT execute
  • Hardware retains final adjudication authority
Tri-Domain Isolation (REE / Arbiter / SEE)
  • REE MUST NOT store plaintext keys or perform signing
  • Arbiter rejects invalid requests before core execution
  • SEE accepts instructions only from Arbiter domain
MUST / MUST NOT Rule Set

Key and Identity Constraints

  • Private keys MUST be generated and used inside secure hardware
  • Keys MUST NOT be exportable or migratable across devices
  • Requests MUST carry valid signatures and trusted certificate chains

Execution Safety Constraints

  • Blind signing MUST NOT be permitted
  • Aborted operations MUST NOT yield partial execution effects
  • Bypass paths and degraded execution paths MUST NOT exist

Explore the Havenlon Specification

This is not documentation. This is an execution control system definition. Havenlon defines a layered specification system:

  • Whitepaper V2 (Concept Layer)
  • Execution Architecture V1 (System Layer)