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docs(decisions): D-191 — drop shadow economy atlas overlay (underwater modifier)

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Resolves the clerk finding on the pre-existing overlay removal. Shadow economy
is an underwater simulation modifier (shadow_economy_intensity, D-174) feeding
derived signals like collection_efficiency and signal 7 official_coverage_ratio
(D-181) — not a user-navigable data point. The atlas overlay and City Data Panel
field were correctly removed in code; D-191 was stale. Amends D-191 §7 (9 -> 8
overlays), §6 (drop city-panel field), §10 (completion criteria). D-174 simulation
layer is unaffected.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
jpmschweitzer
2026-05-22 17:29:41 +02:00
co-authored by Claude Opus 4.7
parent bf3659d1a5
commit f87e251621
1 changed files with 5 additions and 4 deletions
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decisions/architecture.md
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@@ -700,12 +700,13 @@ Technical foundation decisions that constrain implementation: engine, client-ser
- 3 navigation levels: system picker → orbital diagram → body atlas (heightmap + overlays)
- Heightmap displayed as `Texture2D` with pan/zoom
- Marker overlay renders cities, roads, rail, POIs, named features on top of heightmap
- Click city → City Data Panel (name, population, currency zone, Commission presence, shadow economy zone, gate distance, economics panel link)
- Click city → City Data Panel (name, population, currency zone, Commission presence, gate distance, economics panel link) — shadow economy zone dropped per §7 amendment (2026-05-22)
- Economics panel link: click-through to Phase 2 economics panel pre-filtered to that node — primary Phase 2/3 integration point
**7. Overlay System — 9 MVP Overlays**
**7. Overlay System — 8 MVP Overlays**
- **Amendment (2026-05-22):** dropped the `shadow economy` toggleable overlay (9 → 8 overlays). Shadow economy is an *underwater simulation modifier* — `shadow_economy_intensity` (D-174) feeds derived signals such as `collection_efficiency` and signal 7 `official_coverage_ratio` (D-181), but it is not a user-navigable data point, so it does not warrant a player-facing atlas overlay or City Data Panel field. The simulation layer (D-174) is unaffected. Also removed from §6 (city data panel) and §10 (completion criteria) for consistency.
- 5 always-on: terrain, infrastructure, named features, gate/spaceport POIs, political zones
- 4 toggleable: population density, production zones, shadow economy zones (broad bands), corporate presence (Tier 1 only)
- 3 toggleable: population density, production zones, corporate presence (Tier 1 only)
- Deferred overlays visible in toggle bar but locked with unlock requirements shown on hover (creates pull toward Phase 4+ systems)
- Maps to D-181 signal visibility ladder
@@ -740,7 +741,7 @@ Technical foundation decisions that constrain implementation: engine, client-ser
3. Population-scaled depth (core systems rich, frontier sparse)
4. City data panel works (click any city, see data + economics link)
5. Economics panel integration works (link opens Phase 2 panel filtered to node)
6. All 9 MVP overlays present and functional
6. All 8 MVP overlays present and functional
7. Atlas is read-only (no verbs execute from map)
8. Stations show at system view with mini data panel (no drill-down)