test(measure): the window was NOT the problem -- my sixth hypothesis dies

I thought the fitted mouth-AABB window was cropping an origin-routed path
and producing a false NotConnected. Codex tested it three ways at step 1 on
the Maze candidate Jahni walked:

  mouth-AABB + margin      842,996 cells    NotConnected
  origin-inclusive       3,251,556 cells    NotConnected
  WHOLE STRATE          31,881,528 cells    NotConnected

115,578 fit cells, 2,903 components, largest 11,418 -- and the mouths sit
in components of 172 and FOUR cells, 274 voxels apart. The window was never
the problem. Sixth measurement hypothesis, first one that was wrong in the
other direction: this time the instrument was fine and I doubted it.

The window rule still improved: bIncludeOriginInCoverWindow now covers the
route an origin-rooted topology actually implies (Maze, VerticalShafts,
TunnelNetwork, Underwater), expansion happens BEFORE MaxCells, and an
over-cap window is REFUSED honestly instead of silently cropping back to a
mouth-only box. VerticalShafts refused at the 4M production cap and said so.

Corrected law across eight: 0/7 measured Connected, 1 unknown
(CoarseLiedBudgetExhausted), 1 refused.

⇒ FIVE CAUSES NOW ELIMINATED: size (Jahni walked it), the fit stencil
(fixed, 309 pockets -> 96), placement (mouths land on legal poses),
corridor connectivity (spanning tree, 0 disconnected cells over 64 seeds),
and the measurement window (whole-strate says the same thing).

⭐ AND THE REMAINING CAUSE IS NAMED BY ITS OWN NUMBER: the departure mouth
sits in a FOUR-CELL player-fit component. A passage tube is a bore through
rock -- sloped or vertical, no floor within the walkable angle -- so the
mouth point is not a standing position and nothing around it is either.
You arrive and there is nowhere to stand.

That is precisely COMPOSER-NOTES §6.5 / Tier 1's unbuilt item: "the passage
mouth becomes a room plus a distinctive landmark". It was never started.
The law cannot pass while a mouth opens into a bore instead of a landing.

Build clean, 32/32 successful, 0 failed, same two known warnings.
WorldRadiusVoxels=0, lateral gating, determinism, equivalence all intact.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01K8V9my1PL68pmQb2gutZZV

COMPOSER-NOTES.md

@@ -1946,3 +1946,75 @@ the world. Fix the measurement before touching generation again.
 - **Acceptance must be the measured property, never "the code was written."** Twice a task returned
   "built, and it does not meet the criterion — here is the number." Both times that honesty pointed
   straight at the real cause.
+
+---
+
+## 16. Player-fit route-window audit — the origin is not the missing flip (2026-09-06)
+
+This pass tested the proposed sixth measurement artifact directly on the fixed Maze identity:
+composer seed `0`, candidate index `50`, fourth one-based fixture slot (`SlotMaze == 3`). The
+player-fit stencil remained `SampleStep=1`; every row below names its exact XY/Z window and cell
+budget. `NotConnectedAtThisResolution` is a result of that stated grid, not a claim that the
+infinite Maze graph is disconnected.
+
+### 16.1 Part A — three Maze windows
+
+| window | exact window / grid | MaxCells | fit cells | components | largest | arrival / departure | gap (voxels) | law |
+|---|---|---:|---:|---:|---:|---:|---:|---|
+| current mouth-AABB + margin | `X[-84.1,168.7) Y[39.5,53.3) Z[-1175,-937)`, `253×14×238`, `842,996` cells, step 1 | 4,000,000 | 1,352 | 50 | 237 | 128 / 1 | 254.492 | `NotConnectedAtThisResolution` |
+| origin-inclusive mouth-AABB + margin | `X[-84.1,168.7) Y[0.0,53.3) Z[-1175,-937)`, `253×54×238`, `3,251,556` cells, step 1 | 4,000,000 | 9,598 | 309 | 845 | 120 / 3 | 274.811 | `NotConnectedAtThisResolution` |
+| whole-strate centered origin cap window | `X[-183,183) Y[-183,183) Z[-1175,-937)`, `366×366×238`, `31,881,528` cells, step 1 | 32,000,000 | 115,578 | 2,903 | 11,418 | 172 / 4 | 274.811 | `NotConnectedAtThisResolution` |
+
+The origin-inclusive box did **not** flip to `Connected`, and the larger centered window did not
+either. The hypothesis is therefore **not confirmed** for this candidate. The whole-strate probe
+used an explicit 32M cap so it could remain a real step-1 player-fit measurement; the production
+fine-law cap remains 4M. A step-2 player-fit probe is not equivalent here: the player-fit API
+intentionally refuses every `SampleStep != 1` because the capsule stencil cannot be resolved at
+that resolution.
+
+### 16.2 Part B — route-aware window policy
+
+The measurement now has an explicit `bIncludeOriginInCoverWindow` flag. It expands the fitted mouth
+AABB to include `(0,0)` **before** the `MaxCells` check. If that route window is over the cap, the
+measurement refuses with `The requested sample grid exceeds MaxCells; measurement refused.` It does
+not shrink back to a mouth-only box.
+
+The policy used by the eight-row law is:
+
+- origin-inclusive mouth-AABB: `Maze`, `VerticalShafts`, `TunnelNetwork`, and `Underwater`;
+- mouth-AABB plus capsule margin: `CrystalChamber`, `FlatPlain`, `SurfaceWorld`, and
+  `FloatingIslands`.
+
+The first group is origin-rooted by its actual topology: Maze parent chains, VerticalShafts
+drainage-tree chains, and the origin-flowing room graph shared by TunnelNetwork/Underwater. The
+global structural spine exists for every stack, but it is not treated as the promised route for
+the four local/independent families.
+
+### 16.3 Part C — corrected eight-row law
+
+These are the fixed seed-0 identities in the scale diagnosis. All valid rows are step 1. The
+window column is part of the result, not an omitted implementation detail.
+
+| archetype | player-fit window (`X/Y/Z`, grid, cells) | fit cells | components | largest | arrival / departure | gap (voxels) | law |
+|---|---|---:|---:|---:|---:|---:|---|
+| CrystalChamber | mouth-AABB + margin; `X[-178.9,-152.8) Y[-38.2,29.1) Z[-537,-295)`, `27×68×242`, `444,312` | 992 | 102 | 165 | 40 / 6 | 50.070 | `NotConnectedAtThisResolution` |
+| FlatPlain | mouth-AABB + margin; `X[-178.9,-152.8) Y[-38.2,29.1) Z[-534,-298)`, `27×68×236`, `433,296` | 2,346 | 9 | 2,337 | 1 / 2,337 | 138.105 | `NotConnectedAtThisResolution` |
+| FloatingIslands | mouth-AABB + margin; `X[-143.5,-135.5) Y[121.8,129.8) Z[-537,-295)`, `8×8×242`, `15,488` | 0 | 0 | 0 | 0 / 0 | -1.000 | `StartCellNotPlayerFit` |
+| Maze | origin-inclusive mouth-AABB + margin; `X[-84.1,168.7) Y[0.0,53.3) Z[-1175,-937)`, `253×54×238`, `3,251,556` | 9,598 | 309 | 845 | 120 / 3 | 274.811 | `NotConnectedAtThisResolution` |
+| SurfaceWorld | mouth-AABB + margin; `X[-133.7,-76.1) Y[-68.8,47.5) Z[-1495,-1257)`, `58×117×238`, `1,615,068` | 1,720 | 248 | 801 | 1 / 3 | 101.454 | `NotConnectedAtThisResolution` |
+| TunnelNetwork | origin-inclusive mouth-AABB + margin; `X[-178.9,0.0) Y[-38.2,29.1) Z[-536,-296)`, `179×68×240`, `2,921,280` | 3,684 | 213 | 1,176 | 108 / 82 | 83.361 | `NotConnectedAtThisResolution` |
+| Underwater | origin-inclusive mouth-AABB + margin; `X[-178.9,0.0) Y[-38.2,29.1) Z[-535,-297)`, `179×68×238`, `2,896,936` | 1,669 | 79 | 618 | 109 / 109 | 0.000 | `CoarseLiedBudgetExhausted` (**unknown**, not a pass) |
+| VerticalShafts | origin-inclusive mouth-AABB + margin; **refused before allocation** because the required grid exceeds `MaxCells=4,000,000` | — | — | — | — | — | `REFUSED(MaxCells)` |
+
+The valid-row tally is **0/7 Connected**, with **1/8 refused** and one `CoarseLiedBudgetExhausted`
+unknown. The old one-cell/one-pocket success is not present in this corrected table.
+
+### 16.4 Plain verdict
+
+The remaining failure is not the cropped measurement window. Maze remains disconnected in player-fit
+volume even when the origin is covered and when the full 32M-cell step-1 centered window is measured.
+The proven spanning-tree graph and the player-fit volume are different claims: the graph has a route,
+but the generated player-fitting corridor/mouth volume does not currently provide a continuous route
+from these two passage mouths. The smallest next generation task is therefore at the mouths or their
+player-fit join to the corridor network (with the possibility of a fine-floor/stencil break along
+the route), not another window, size, density, or topology tuning pass.