Sprint 22 Engineering Log

Program Context

Bind execution identity to telemetry federation using a unified cryptographic fingerprint.

Completed Sprint 22 controls:

Defined unified execution fingerprint schema: manifest_hash + tool_hash + operator_id + tenant_id + policy_decision_hash + timestamp.
Implemented fingerprint generation and deterministic canonical encoding.
Bound fingerprint generation to RabbitMQ bridge forwarding path before dispatch.
Persisted fingerprint bind/validate outcomes in tamper-evident integrity audit stream.
Included execution fingerprint inside VectorVue telemetry metadata and federation bundle.
Enforced fingerprint validation gate before dispatch to downstream integration target.
Rejected forwarding when provided fingerprint mismatched computed fingerprint.
Migrated bridge default behavior to federated gateway path with compatibility fallback for legacy direct API mode.
Added integration and unit regression coverage for fingerprint integrity controls.

Federation transport payloads now carry deterministic execution fingerprint identity.
Tampering attempts with execution fingerprint are denied before dispatch.
Legacy direct API emission path is no longer default in bridge runtime and is retained only as explicit compatibility mode.

Commands:

PYTHONPATH=src .venv/bin/pytest -q tests/unit/test_execution_fingerprint.py
PYTHONPATH=src .venv/bin/pytest -q tests/unit/integration/test_vectorvue_rabbitmq_bridge.py
PYTHONPATH=src .venv/bin/pytest -q tests/unit/integration/test_vectorvue_client.py
PYTHONPATH=src .venv/bin/pytest -q tests/qa/test_sprint22_federation_fingerprint_qa.py

Residual risk:

Full gateway-side mTLS + Ed25519 hard requirement enforcement is planned under Sprint 23 federation channel hardening tasks.

Sprint 23 enforces single outbound federation gateway and removes remaining legacy direct API paths.