gps-denied-onboard/_docs/03_implementation/reviews/batch_92_review.md

Code Review Report — Batch 92 (AZ-621 Phase C: c7_inference)

Batch: 92 Tasks: AZ-621 (3 cp) — AZ-618 Phase C Date: 2026-05-19 Verdict: PASS

Findings

None.

Phase Notes

• Phase 1 (Context): Loaded _docs/02_tasks/todo/AZ-621_pre_constructed_phase_c_c7_inference.md and the AZ-618 umbrella spec. Mapped batch changes to AZ-621 exclusively.
• Phase 2 (Spec Compliance):
  • AC-621.1: _build_c7_inference is called from build_pre_constructed; test_ac_621_1_adds_c7_inference asserts the key and identity to the factory return.
  • AC-621.2: _build_c7_inference wraps RuntimeNotAvailableError into AirborneBootstrapError whose message includes both BUILD_TENSORRT_RUNTIME and BUILD_PYTORCH_FP16_RUNTIME (sourced from the new C7_AIRBORNE_BUILD_FLAGS const) plus the configured consumer slug. Defence-in-depth test covers the no-consumer-configured path.
  • AC-621.3: tests/unit/runtime_root/test_az621_pre_constructed_phase_c.py exists and contains the AC-621.1 / AC-621.2 cases.
  • Constraints: no new BUILD_* env flag introduced (only a Python-level tuple listing already-existing flag names). Implementation is strictly additive — AZ-619 and AZ-620 keys still populated; AZ-619/620 test suites green after stubbing the new _build_c7_inference symbol via the same autouse-fixture pattern AZ-620 introduced for _build_c6_*.
• Phase 3 (Code Quality): _build_c7_inference is ~25 lines, single responsibility (wrap factory + translate error), preserves cause chain via raise ... from exc, mirrors the established _build_c6_descriptor_index pattern verbatim. Tests use AAA, monkeypatch at the bootstrap module boundary (no real GPU/TensorRT load), assert message content per AC-621.2's explicit naming requirement.
• Phase 4 (Security): no external inputs, no subprocess/eval/exec, no secrets. The new error message includes operator-facing flag names and component slugs only.
• Phase 5 (Performance): composition-time only; one factory call per build_pre_constructed invocation. No hot-path change.
• Phase 6 (Cross-Task Consistency): single-task batch — N/A.
• Phase 7 (Architecture Compliance):
  • runtime_root.airborne_bootstrap (Layer 5) imports runtime_root.inference_factory (Layer 5 sibling). Per the Allowed Dependencies table, Layer 5 may import from Layers 1–4 plus its own sibling composition modules. No layer violation.
  • The imported symbol build_inference_runtime is part of inference_factory.__all__ — Public API respected.
  • No new module-level cycle introduced (graph remains airborne_bootstrap → inference_factory → errors, no back-edge).
  • No duplicate symbol introduced across components.
  • No cross-cutting concern locally re-implemented — error translation is bootstrap-specific (mirrors c6 path) and not a candidate for shared/.

Counts

• Critical: 0
• High: 0
• Medium: 0
• Low: 0