# Packetloss404 Mountain Side Estate — Unified Bunker-City As-Built Plan

Status: **BUILT LIVE; EXACT SAVED-WORLD AND PAPER-RESTART ACCEPTANCE PASSED**

This package transformed the four lower house chambers and the voids between them into one continuous, colonnaded underground bunker-city. The already-finished Y3 Grand Hall remains the principal central civic plaza and keeps its identity, finishes, displays, heritage sign, lift link, and four broad built porticos. The first Grand Escape chain temporarily copied newly authored Birchglass and Starlight mini-estates; those were not the owner's houses and are now retired interim layers. The accepted successor relocated the actual **Owner House North — Oak & Glass** and **Owner House South — Quartz & Glass** to Grand Escape, then finished their vacated Estate footprints as the distinct **Owner-House Civic Plaza**. Redwood and the remaining Copperlight city fabric continue in adaptive reuse.

## Live result

- All 18 exact operations completed under the sole mutation lock: 599,775
  input records composed to 545,711 final coordinates with 54,064 intentional
  successor overrides and zero mismatch.
- The complete chain remained exact after a full Paper restart.
- All 82 authored block entities were raw-exact; the 235 changed chunks held
  the expected 111 total block-entity registry points with zero missing or
  unexpected entries. All four retained ROOM signs stayed raw-exact.
- The unified public walk component, all scheduled storefronts, 44 continuous
  columns / 900 quartz cells, 3,794 bedrock arch cuts, and the 244-cell legacy
  egress passed against the restarted live world.
- Every one of 2,108 city lighting witnesses and 12,446 Grand Escape witnesses
  met minimum modeled level 12. The 799,092-coordinate city envelope had zero
  fluids and zero open fire.
- Both 100-position minecart directions reached their declared terminus and
  were physically contained by the sealed handoff cap and station bumper.
  Cleanup left zero tagged test carts and zero forceloads.
- Live proof: `fixtures/mountain-side-bunker-city-live-acceptance-20260827.json`.
- Corrected Bunker City arrival: `/tp @s 250.5 4 160.5`.
- A later eight-operation owner-house successor passed live restart acceptance:
  37,781 exact records composed to 34,579 coordinates, four complete
  owner-door routes, 18 exact block entities, zero house-box fire/fluid cells,
  exact source retirement and exact Owner-House Civic Plaza restart state.
  Current proof: `fixtures/owner-houses-relocation-correction-live-acceptance-20260827.json`.

## Evidence and confidence

- Frozen save boundary: `2026-08-27T03:52:45Z`, zero players after `save-all flush`; Paper service then stopped.
- World: `/opt/minecraft/minecraftv5.0`.
- Block region: `region/r.0.0.mca`, SHA-256 `de9a2fae6d88f794207da5b46776dbc2935bade250a308d05c7e221c4dd2f637`.
- Entity region: `entities/r.0.0.mca`; its exact hash is recorded in `fixtures/mountain-side-bunker-city-source-survey-20260827.json`.
- Method: full saved-Anvil scan of the complete city envelope, each connector void, each quadrant, all Hall interfaces, protected controls, all 143 touched chunks, block entities, and ordinary entities.
- Confidence: high. The frozen source, isolated restart rehearsals and final live saved-world restart all passed. Any future mutation still requires a fresh zero-player boundary, controls, backup, predecessor-chain verification and root-held mutation lock.
- Current frozen city volume contains zero water/lava/bubble-column blocks and 63 block entities. Twenty southern mini-estate beds/name signs are deliberately consumed with exact recovery; twelve lower Copperlight heritage signs remain untouched.
- The historical base-chain proof classified five gameplay-state differences: three unwaxed-copper oxidation points in the now-retired Starlight interim copy and both halves of one open Copperlight door. The later correction retired the interim copy; all current owner-house state/entity records pass raw-exact after restart.
- Ordinary entities: 19 unnamed, passenger-free natural hostile/ambient mobs (bat, creeper, skeleton, slime, spider, zombie); there are no owned/tamed/named/display/vehicle entities in the envelope. They are not mutated by this plan. Clone/live acceptance requires zero hostile mobs in occupied or public interiors; any persistent cleanup must be separately bounded and recorded after identity/ownership recheck.

## Frozen geometry

All geometry below is current built or preserved as-built fabric; the treatment column states the exact role.

| Role | Exact inclusive box | Treatment |
|---|---:|---|
| Unified city | `[187,3,65]..[337,29,260]` | **BUILT; continuous public volume** |
| R4 northwest | `[187,3,65]..[238,24,130]` | **BUILT:** six homes, clinic, security/fire, utilities/storage |
| R3 northeast | `[275,3,65]..[337,24,130]` | **BUILT:** grocery store, mini-mall and food hall |
| R2 southwest | `[187,3,190]..[238,29,260]` | **BUILT:** reused Redwood shell, food hall/bar and four upper homes |
| R1 southeast | `[275,3,190]..[337,29,260]` | **BUILT:** retained Copperlight city fabric plus the Owner-House Civic Plaza over the two vacated heritage-house footprints |
| North concourse | `[239,3,65]..[274,29,131]` | **BUILT:** full-height public volume, Y24 false sky |
| South concourse | `[239,3,189]..[274,29,260]` | **BUILT:** full-height public volume, Y29 false sky |
| West concourse | `[187,3,131]..[239,29,189]` | **BUILT:** full-height public volume, Y24 false sky |
| Grand Hall | `[240,3,132]..[337,24,188]` | **BUILT; visible fabric exact no-touch; 37 enumerated invisible safety-light exceptions** |
| Hall east link | `[338,3,182]..[345,28,188]` | **BUILT; exact no-touch island** |
| Twin lift | `[346,3,182]..[354,90,190]` | **BUILT; exact no-touch island** |
| Grand Stair | `[355,3,194]..[367,84,212]` | **BUILT; exact no-touch island** |
| THR rail easement | `[369,2,192]..[383,15,287]` | **BUILT; exact no-touch island** |
| Glowstone roof control | `[260,32,130]..[344,36,262]` | **BUILT; 14,724 glowstone; exact no-touch** |

The 244-cell retained legacy stair/egress is protected as support/body/head coordinates. It may sit inside the open city concourse, but no phase-2 record changes those coordinates.

## One-room architecture

The public datum is floor Y3 with body/head clearance beginning Y4. New floors use polished andesite with blackstone directional bands. North and west concourses have 21 blocks from floor to false sky; south has 26. Exact QA samples sixteen unobstructed floor-to-sky columns in each concourse.

The old bedrock dividers become open arch-and-pier colonnades. Exactly 3,794 bedrock blocks change, each from exact `minecraft:bedrock` to air with exact reverse recovery:

- North: 1,512 points, `x=264/273`, `y=5..18`, Z arches `69..79`, `82..94`, `97..109`, `112..124`, `128..131`.
- South: 1,652 points, `x=264/273`, `y=5..18`, Z arches `190..201`, `204..216`, `219..231`, `234..246`, `249..256`.
- West: 630 points, `z=154`, `y=5..18`, X arches `188..199`, `202..213`, `216..227`, `230..238`.

The complete point set, scope hash, before/after states, and rollback states are in `fixtures/mountain-side-bunker-city-bedrock-arch-allowlist-20260827.json`. Every other bedrock coordinate fails closed. No allowlisted point is a fluid, block entity, Hall point, lift/stair/rail point, or protected control.

Forty-four new full-height columns continue the Hall’s gold-base/quartz-shaft/sea-lantern-cap language: four in each programmed quadrant, eight each in the north and south concourses, and twelve in the west concourse. Exact X/Z and vertical extents are in the preview/QA `column_grid`; gold dots on the program map show their positions.

The Hall-side planes are already broad framed openings and remain unchanged by phase 2:

| Wing | Built portico plane | Verified clear width | Reserved scope fragment if ever changed |
|---|---:|---:|---|
| R4 | `[240,4,137]..[240,12,149]` | 11 columns | `phase2-hall-gate-r4` |
| R3 | `[288,4,132]..[316,12,132]` | 27 columns | `phase2-hall-gate-r3` |
| R2 | `[240,4,171]..[240,12,183]` | 11 columns | `phase2-hall-gate-r2` |
| R1 | `[288,4,188]..[316,12,188]` | 29 columns | `phase2-hall-gate-r1` |

Phase 2 emits no visible/nonpassable Hall record. The only Hall mutation is a machine-readable 37-point allowlist of exact air-to-`minecraft:light[level=15,waterlogged=false]` safety sources on asserted public-route samples. Each record has null before/after block entities and exact air recovery; every other Hall point remains fail-closed. The allowlist scope is uniquely `phase2-grand-hall-safety-light-allowlist`, with point/scope SHA-256 `ae3aa284d4d34a6e48cbcf4a8fd6c20cae36b67adf7cf8b2598b6104bf10447a`. The new concourses terminate against the built porticos. Exact composed QA requires one supported, two-block-clear public component containing all four wing anchors, all three concourses, both legacy-gate anchors, and the Hall goal.

### Life-safety lighting

The exact lighting fixture samples 2,108 public-route, storefront-route, and occupied-space cells. Its occupied-level schedule explicitly covers Y4 ground-level homes/services/market, Y18 Redwood public rooms, Y19 Copperlight wellness/therapy rooms, and Y22 Redwood upper homes; every intended standable occupied level has at least one exact sample set. It uses 382 new canonical invisible level-15 sources plus 25 already-present level-15 sample sources. Every target stores its exact source and a transparent six-neighbor path of at most three cells; opaque fabric is never traversed. With Minecraft's one-level-per-cell block-light attenuation, the modeled minimum is exactly 12. The complete proof and Hall exception table are in `fixtures/mountain-side-bunker-city-lighting-acceptance-20260827.json`. Clone acceptance must recheck every source and transparent witness path after a real Paper restart.

## Program and storefront schedule

- Northwest: six compact private homes; clinic; combined security/fire service; utilities and storage.
- Northeast: **GROCERY STORE**; mini-mall with Repair + Supply, Civic Goods, and one intentionally **EMPTY STOREFRONT** with capped utility readiness; public food hall.
- Southwest Redwood reuse: public food hall, bar with no open flame, service fixture, two retained exterior doors, new three-wide Y17-to-Y3 public stair, four upper homes, retained shell/roof/floors/internal stair.
- Southeast current program: retained Copperlight massage/wellness, wellness lounge, clinic/counselling, consent-focused adult relationship/sex-therapy storefront and discreet non-graphic private consult suite; two retained exterior doors; three-wide Y18-to-Y3 public stair; retained city-owned shell/roof/floors and heritage fabric. The former owner-house source boxes `[282,3,191]..[335,15,218]` and `[282,3,233]..[330,11,252]` are now an open, illuminated Owner-House Civic Plaza with seating and relocation wayfinding at `(300,4,210)` and `(300,4,240)`.
- Central Grand Hall: built principal civic plaza, display/armory/garden circulation and direct lift/Grand Stair access; its visible fabric remains unchanged by both phase 2 and the owner-house successor.

Every scheduled unit must pass exact composed acceptance for an operable two-block door, at least nine nearby usable supported interior cells, a service/storage or readiness fixture, a luminous fixture, one route to the Grand Hall, and a second route to the appropriate north/south legacy egress. Wooden doors are modeled as player-operable; every route cell still requires solid support and two-block body/head clearance.

## Historical base-chain predecessors

The original city chain did not assume the then-built Birchglass/Starlight source as its own before state. It imported exact after states/entities from these source-clear predecessors. Their identifiers and hashes are retained as historical, immutable build provenance; Birchglass and Starlight are retired interim copies, not current Grand Escape owner-house identities:

1. `clear-mountain-side-birchglass-after-relocation-20260827` — `ops/clear-mountain-side-birchglass-after-relocation-20260827-exact-patch.json`, final SHA-256 `a8abf0c9ae693e37f9dc4c72ca6c410e464cbc5f79020eeb5ab46b458d388081`.
2. `clear-mountain-side-starlight-after-relocation-20260827` — `ops/clear-mountain-side-starlight-after-relocation-20260827-exact-patch.json`, final SHA-256 `07d254702c7af81eb46f87526865c7454307623bf4e41d464834f4d19a2d8a6c`.

Their full seven-operation remote chain is `fixtures/grand-escape-estates-operation-set-20260827.json`. The city overlap fixture proves each first city before state/entity equals its clear predecessor after state/entity. The current successor is the separate eight-operation contract `fixtures/owner-houses-relocation-correction-operation-index-20260827.json`; it preserves those files and hashes while replacing the interim remote copies with the two actual owner houses.

## City operation order

1. `build-mountain-side-bunker-city-unified-north-concourse-20260827`
2. `build-mountain-side-bunker-city-unified-south-concourse-20260827`
3. `build-mountain-side-bunker-city-unified-west-concourse-20260827`
4. `build-mountain-side-bunker-city-north-structural-lighting-predecessor-20260827`
5. `build-mountain-side-bunker-city-south-structural-lighting-predecessor-20260827`
6. `build-mountain-side-bunker-city-southern-adaptive-clear-20260827`
7. `build-mountain-side-bunker-city-public-realm-20260827`
8. `build-mountain-side-bunker-city-nw-residential-services-20260827`
9. `build-mountain-side-bunker-city-ne-market-quarter-20260827`
10. `build-mountain-side-bunker-city-redwood-food-homes-20260827`
11. `build-mountain-side-bunker-city-copperlight-wellness-20260827`

All operations are exact before/after/state/entity records with recovery. No operation may exceed 64 touched chunks. Successor records consume predecessor after states, including intentional same-coordinate overrides.

## Controls, hazards, and recovery

Every operation asserts, before and after:

- 14,724 glowstone in the full Y32..36 control;
- 206 powered rails and 9 ordinary rails in the THR easement;
- 172 lift bubble-column blocks;
- 232 Grand Stair polished-blackstone-brick stair blocks;
- Hall heritage hanging sign at `(271,5,155)`;
- two north and two south ROOM signs;
- two dungeon chests and one spawner on the upper preserved deck.

No operation assigns a fluid. Seven exposed Copperlight fire blocks are removed; successor lighting exists before/adjoining public opening work, and the program uses no real open flame. Existing visible Hall fabric, lift, Grand Stair, rail, glowstone, dungeon, upper theater/private decks, player containers, and retained legacy egress fail closed. The exact Hall lighting exception cannot consume a visible block, block entity, sign, column, fixture, or non-air state.

Recovery is reverse operation order 11→1, then the remote relocation chain reverses only after all city successors are gone. Each bedrock arch restores only its listed exact point. Reverse acceptance requires every coordinate/state/entity to match the frozen source, including block-entity recovery SNBT and the five classified gameplay states.

## Rehearsal and live gate — completed provenance

The base chain completed the following gate before live apply; the later owner-house correction independently repeated the same forward/restart/reverse and zero-player live controls:

1. Static review of source hashes, predecessor after→before composition, touched chunks, record bounds, Hall/control exclusions, block entities, bedrock allowlist, and material counts.
2. Isolated Paper clone: apply the complete seven-operation relocation chain and eleven city operations; exact-verify each stage; restart; exact-verify persistence; run public component, storefront, lighting, hostile-mob, lift/stair/rail/Hall/legacy/deck/control QA.
3. Reverse city 11→1 and relocation 7→1; restart; verify exact frozen block/entity recovery and source-file invariants.
4. For live apply: new zero-player list, `save-all flush`, current-source recapture, disaster backup of all touched block/entity/POI regions, forceload only bounded chunks, exact precontrols, explicit root mutation lock, stop-on-first-mismatch, final flush and release forceloads.

The owner-house correction's final live fixture passed at `2026-08-27T14:42:23Z` with zero players, completed flush, all eight operation after-states exact, all four owner-door routes supported/two-clear, 18 declared block entities exact, source retirement exact and civic-plaza restart state verified. Publication remains a separate generator-first step and does not alter the operation record.

## Artifacts and rebuild

- Survey generator: `tools/survey_mountain_side_bunker_city.py`
- Plan generator: `tools/plan_mountain_side_bunker_city.py`
- Frozen survey: `fixtures/mountain-side-bunker-city-source-survey-20260827.json`
- Candidate/exact preview: `fixtures/mountain-side-bunker-city-design-preview-20260827.json`
- Dependency overlap: `fixtures/mountain-side-bunker-city-relocation-overlap-20260827.json`
- Bedrock allowlist: `fixtures/mountain-side-bunker-city-bedrock-arch-allowlist-20260827.json`
- Level-12 lighting proof and Hall allowlist: `fixtures/mountain-side-bunker-city-lighting-acceptance-20260827.json`
- Operation index: `fixtures/mountain-side-bunker-city-operation-index-20260827.json`
- Virtual QA: `fixtures/mountain-side-bunker-city-virtual-qa-20260827.json`
- Full 18-operation Paper runner: `tools/rehearse_mountain_side_bunker_city.py`
- Full clone report (created only by a completed rehearsal): `fixtures/mountain-side-bunker-city-integrated-clone-roundtrip-20260827.json`
- Maps: `reports/maps/mountain-side-bunker-city/`

Rebuild the frozen survey only against the preserved source boundary:

```bash
./.venv/bin/python3 tools/survey_mountain_side_bunker_city.py --save-boundary-status zero_player_save_all_flush --save-boundary-at-utc 2026-08-27T03:52:45Z
```

Generate review preview without manifests:

```bash
./.venv/bin/python3 tools/plan_mountain_side_bunker_city.py
```

Emit exact manifests only after final dependency-hash review:

```bash
./.venv/bin/python3 tools/plan_mountain_side_bunker_city.py --emit-exact
```

After both operation indexes and all patch hashes are frozen, run the disposable integrated clone (never the live server):

```bash
./.venv/bin/python3 tools/rehearse_mountain_side_bunker_city.py
```