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docs(decisions): D-236 Sol player-access scope — Atlas highest-level only, deeper Sol = future DLC

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Formalises what was previously implicit in D-223's naming exemption and GJ-0's wiki frontmatter into a single canonical scope rule. (a) Phase-4+ generation pipelines exclude Sol bodies (settlement_wave='origin' gate); (b) Atlas renders Sol at system level only -- no zoom; (c) deeper Sol treatment is reserved for a future DLC. Cross-refs D-145 (DLC precedent), D-191 (Atlas Phase-3), D-223.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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jpmschweitzer
2026-05-28 11:52:59 +02:00
co-authored by Claude Opus 4.7
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*34 decisions (25 active, 9 superseded). Last updated: 2026-03-19 (D-165 added — character creator color palette)*
### D-236: Sol / GJ-0 — player-inaccessible, Atlas highest-level only, deeper Sol is future DLC
- **Date:** 2026-05-26
- **Decision:** Sol (system `GJ-0`) is permanently **out of player scope.** Three concrete consequences:
- **(a) No body-level generation.** All Phase-4+ generation pipelines (founding_age backfill, body skeleton generation, FillChunk, etc.) EXCLUDE Sol bodies entirely. `system_history.settlement_wave = 'origin'` is the gate flag — GJ-0's wiki frontmatter already documents this as a placeholder that flags the system as exceptional, predating the wave taxonomy.
- **(b) Atlas highest-level only.** The Atlas renders Sol at its system-level pregenerated map and **nothing more** — no zoom-in, no per-body click-through, no in-world rendering of Sol bodies. The Sol map is a leaf node in the Atlas hierarchy.
- **(c) Deeper Sol is a future DLC.** Any treatment that makes Sol *feel like actual Sol* (real Earth/Mars/Luna geography, real history, real political textures) is reserved for a separate, future DLC with its own scope. Explicitly NOT current work.
- **Rationale:** Sol carries enormous authorial expectation (real Earth/Mars/Luna geography, real human history). Fudging it would land worse than leaving it sealed. Keeping Sol out of scope keeps the Reach the focus and the realism debt manageable; reserving Sol for a hypothetical DLC keeps the door open without committing to the (massive) job now.
- **Implementation:** generation pipelines filter out bodies whose system has `settlement_wave = 'origin'`; the Atlas zoom UI gates Sol at the system map (no body-level navigation panes). Effective immediately on the Phase-4 fill-seam cascade (#1000 founding_age backfill explicitly excludes Sol).
- **Raised by:** Jeroen, 2026-05-26 — formalising what was previously implicit in D-223's naming exemption and GJ-0's wiki frontmatter into a single canonical scope rule.
- **Cross-reference:** [D-145](#d-145-base-building-dlc--gj-902-unclaimed-moon-as-player-settlement-site) (DLC-scoping precedent), [D-191](architecture.md#d-191-atlas-of-the-reach--phase-3-scope-and-pipeline) (Atlas Phase-3 — this constrains Sol's Atlas treatment), [D-223](architecture.md#d-223) (Sol naming exemption + offline `sol_import.py` geometry — this generalises that scope), [D-171](economics.md#d-171-three-currency-system) / [D-174](economics.md#d-174-shadow-economy-layer) (Sol-as-shadow-currency — orthogonal, unaffected), GJ-0 wiki frontmatter (`settlement_wave: origin`, `political_zone: earth_sphere`).
- **Dissent:** None
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*35 decisions (26 active, 9 superseded). Last updated: 2026-05-26 (D-236 added — Sol player-access scope)*