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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.

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