# Runtime Effect Kind-8 Tier2 Recipe Signature Note

This note records a direct fixed-layout scan over all 41 bundled `rt3_105/maps/*.gmp` files,
using the already-grounded recipe-book payload layout:

- recipe-book root `0x0fe7`
- book stride `0x4e1`
- line root `0x3f1`
- line stride `0x30`
- imported mode dword at `line+0x00`
- supplied token dword at `line+0x08`
- demanded token dword at `line+0x1c`

The goal is narrower than general recipe-book comparison:

- classify the imported nonzero-mode footprint that can actually feed `0x00435630`
- then check whether `Louisiana.gmp` is unique on that runtime-relevant surface

## Mode-signature groups

Across the 41-map corpus there are 23 distinct nonzero-mode path signatures.

Largest groups:

- 7 maps: no nonzero mode rows at all
  - `East of Mississippi.gmp`
  - `Greenland Growing.gmp`
  - `Mexico.gmp`
  - `Pacific Coastal.gmp`
  - `Russia.gmp`
  - `Southern Pacific.gmp`
  - `War Effort.gmp`
- 4 maps: `book00.line02`, `book01.line02`, `book02.line02`
  - `Argentina Opens Up.gmp`
  - `Central Pacific.gmp`
  - `Eastern Canada.gmp`
  - `Rhodes Unfinished.gmp`
- 3 maps: `book02.line02`
  - `Crossing the Alps.gmp`
  - `Germantown.gmp`
  - `Mississippi Valley.gmp`
- 3 maps: `book00.line02`, `book01.line02`, `book02.line02`, `book03.line02`
  - `East Coast, USA.gmp`
  - `Go West!.gmp`
  - `Ireland.gmp`
- 3 maps: `book00.line02`
  - `Britain.gmp`
  - `Louisiana.gmp`
  - `South East USA.gmp`

So `Louisiana.gmp` is not unique at the coarse nonzero-mode-path level. It belongs to a small
three-map family whose imported mode footprint is just one active line:

- `book00.line02`

## Exact imported signature

When the token lanes are included, `Louisiana.gmp` does become unique in the 41-map corpus.

Current exact imported signature:

- nonzero mode rows:
  - `book00.line02 = 0x00080000`
- nonzero supplied token rows:
  - `book00.line02 = 0x00004080`
- nonzero demanded token rows:
  - `book00.line00 = 0x00010000`
  - `book00.line01 = 0x6c430000`

Exact signature group size:

- `1`

Current exact group:

- `Louisiana.gmp`

## Current implication

This narrows the Tier 2 recipe/runtime question again:

- the decisive runtime-relevant surface is not the broad recipe-book family and not only the raw
  setup-core tuple
- `Louisiana.gmp` is rare but not singular on the imported nonzero-mode-path shape
- it becomes unique only when the token-bearing rows around that minimal imported shape are
  included

So the next concrete comparison question is:

- whether the two mode-shape peers `Britain.gmp` and `South East USA.gmp` diverge from
  `Louisiana.gmp` strongly enough on token lanes and later Tier 2/runtime-facing state to explain
  why only `Louisiana.gmp` currently lines up with the shipped `Add Building Warehouse05` path

## Mode-shape peer split

Direct fixed-layout comparison of the two `book00.line02` mode-shape peers now answers that first
half positively.

`Louisiana.gmp` keeps:

- `book00.line00`: demanded token `0x00010000`
- `book00.line01`: demanded token `0x6c430000`
- `book00.line02`: mode `0x00080000`, supplied token `0x00004080`

`Britain.gmp` diverges strongly:

- `book00.line01`: supplied token `0x00210000`, demanded token `0x72490000`
- `book00.line02`: mode `0x00120000`, supplied token `0x00003f80`
- extra zero-mode supplied rows at `book01.line01` and `book02.line01`

`South East USA.gmp` stays structurally closer but still diverges on the exact imported values:

- `book00.line00`: demanded token `0x00010000` matches
- `book00.line01`: demanded token `0x6c410000` differs from `Louisiana`'s `0x6c430000`
- `book00.line02`: mode `0x00010000` and supplied token `0x00004000` both differ from
  `Louisiana`'s `0x00080000 / 0x00004080`
- extra zero-mode supplied row at `book01.line01`

So the current corpus split is:

- `book00.line02`-only mode shape is a three-map family
- but `Louisiana.gmp` still has a distinct exact token-bearing signature even inside that family

## Checked downstream split

One immediate runtime-facing comparison is now grounded too:

- `runtime inspect-smp Britain.gmp`
- `runtime inspect-smp "South East USA.gmp"`

Both mode-shape peers still expose in-file candidate names such as `Port01` and `Warehouse05`, but
neither currently exposes any add-building dispatch-strip trigger rows:

- `add_building_dispatch_strip_records_with_trigger_kind = 0`
- `trigger_kinds_present = []`

So the current checked downstream split is sharper than a generic “same mode-shape family” read:

- `Britain.gmp` and `South East USA.gmp` share the coarse `book00.line02` mode footprint with
  `Louisiana.gmp`
- both also still carry the relevant candidate names in-file
- but neither currently reaches the shipped add-building dispatch-strip family that
  `Louisiana.gmp` does

That makes `Louisiana.gmp` the first checked member of that mode-shape family whose distinct exact
token-bearing `book00` signature also lines up with the add-building runtime path.