Sprint 17 Engineering Log

Program Context

• Phase: Phase 5
• Sprint: Sprint 17
• Status: Completed
• Primary Architecture Layers: Identity and Policy Plane, Execution Plane

Architectural Intent

Validate zero-trust denial controls and execution containment guarantees.

Implementation Detail

Added explicit Sprint 17 QA suite:

• OPA denies unauthorized tool hash execution attempts.
• OPA denies authorized tool execution against unauthorized target URNs.
• Runner dynamic Cilium policy reflects deny-by-default containment and target egress allowlist.
• Added carry-over QA gate for Sprint 16.5, 16.7, and 16.8 regressions.

Security and Control Posture

• OPA pre-sign authorization denials are validated for malicious insider scenarios.
• Runner network fencing controls are validated for lateral movement resistance.
• Security posture remains aligned with policy-driven control plane goals in Phase 5.

QA and Validation Evidence

Command:

• PYTHONPATH=src .venv/bin/pytest -q tests/qa/test_zero_trust_sprint17_qa.py

Result:

• 3 passed
• 28 passed (carry-over validation set for Sprint 16.5/16.7/16.8)

Risk Register

Residual risk is environment-specific Cilium runtime variance outside fixture scope. Mitigation is controlled live validation in target cluster lanes.

Forward Linkage

Sprint 18 begins C2 gateway architecture baseline.