gps-denied-onboard/_docs/02_document/ripple_log_cycle1.md

Ripple Log — Cycle 1 (End-of-Cycle Documentation Sync)

Produced as part of greenfield Step 13 (Update Docs, document skill Task mode). Source: _docs/_autodev_state.md (cycle: 1). Date: 2026-05-19.

Why this ripple log is not a per-file enumeration

The document skill's Task Step 0.5 normally walks each touched source file and adds the downstream importers to the refresh set. The conventional output is a one-line-per-affected-doc list:

- docs/components/02_ingestor.md — refreshed because src/ingestor/queue.py imports src/shared/serializer.py (changed by AZ-173)

That mode assumes an incremental task batch — typically 1–5 specs against an established codebase where most code is unchanged. Cycle 1 of this greenfield is the inverse: 165 done task specs across 14 components + 8 helpers + 18 contract surfaces + 9 system-level test docs, landed across 97 implementation batches between 2026-05-09 and 2026-05-17. Every component owns code that did not exist when the Plan baseline docs were written, and every cross-cutting helper has at least one consumer in every component.

Computing the literal reverse-dependency set in this state produces "essentially every component imports essentially every helper, and every component is consumed by runtime_root.compose_root". The output would be ~30 doc rows all saying "refreshed because cycle 1 landed it". That is not actionable.

What the refresh set actually is for cycle 1

The Task workflow's three update levels each have a different effective scope this cycle:

Update level	Effective scope this cycle	Status after this session
Task Step 1 — Module docs (_docs/02_document/modules/)	N/A — this project's Plan chose component-level granularity; no modules/ folder exists.	No action.
Task Step 2 — Component docs (components/<NN>_<cN>/{description,tests}.md + common-helpers/*.md + contracts/*/*.md + tests/*.md)	All 14 product components, all 8 helpers, all 18 contract subfolders, all 9 system-level test docs. ~50+ files.	DEFERRED — to a follow-up /document task pass in a fresh session (see "Documentation reconciliation still owed" in FINAL_report.md § Cycle 1 Implementation Status).
Task Step 3 — System-level docs (architecture.md, system-flows.md, data_model.md, glossary.md, module-layout.md, FINAL_report.md)	Real cross-cutting drift: _STRATEGY_REGISTRY + pre_constructed patterns (AZ-591, AZ-618), KltRansac-as-production-default (AZ-332/333 BLOCKED), opencv pin relaxation (D-CROSS-CVE-1 leftover).	PARTIAL — FINAL_report.md + glossary.md updated this session; architecture.md + module-layout.md + system-flows.md deferred.
Task Step 4 — Problem-level docs (_docs/00_problem/*)	No cycle-1 task changed an AC, restriction, or input-data parameter that the problem-level docs encode.	No action; revisit only if the deferred Step 2 / Step 3 surfaces a contradiction.

Files actually changed this session

• _docs/02_document/FINAL_report.md — Decision 9 revised (OpenCV pin); new "Cycle 1 Implementation Status" section appended before Quality Checklist Verification, listing composition-root architecture additions (_STRATEGY_REGISTRY, pre_constructed), BLOCKED tasks AZ-332 + AZ-333 with parked Tier-2 follow-ups, Step 11 Run Tests results, dependency pin drift, and the deferred-doc list.
• _docs/02_document/glossary.md — 5 new entries (alphabetical): _STRATEGY_REGISTRY, airborne_bootstrap, KltRansac, pre_constructed, Tier-1 task / Tier-2 task. Status line updated to note cycle-1 additions pending re-confirmation.
• _docs/02_document/ripple_log_cycle1.md — this file (new).
• _docs/_autodev_state.md — sub_step bump to system-level-updates with deferred-work note.

Follow-up session — recommended ordering

1. Architecture-level updates (continue Task Step 3) — architecture.md ADR-009 sibling notes for _STRATEGY_REGISTRY + pre_constructed; OpenCV mentions in § Technology stack / § Risks; KltRansac-as-production-default note in § C1. module-layout.md § "Composition Root" extension for airborne_bootstrap + build_pre_constructed. system-flows.md only if any flow's wiring narrative drifted (likely F2 takeoff + F8 reboot — the only flows where compose_root is the visible actor).
2. C1 component refresh — components/01_c1_vio/description.md should explicitly mark KltRansac as the cycle-1 production-default; reflect the Tier-2 status of OKVIS2 + VINS-Mono.
3. Other 13 components + 8 helpers — task-by-task reconciliation, batched ~3 components per session.
4. tests/*.md — pick up cycle-1 deltas; Step 12 (Test-Spec Sync) already touched traceability-matrix.md and resilience-tests.md in the uncommitted working tree; the remaining test-doc surfaces (blackbox-tests.md, performance-tests.md, resource-limit-tests.md, security-tests.md, tier2-jetson-testing.md, environment.md, test-data.md) should be checked against the ~36 done Blackbox Tests task specs.

The component-level pass (item 2 + 3) is the bulk of the work. Each component-batch session should re-read this ripple log + the relevant component description.md + the task specs in _docs/02_tasks/done/AZ-*_<component>*.md + the actual source in src/gps_denied_onboard/components/<c>/.