Narrow tier2 kind-8 availability path

artifacts/exports/rt3-1.06/runtime-effect-kind8-tier2-named-availability-note.md

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+# Runtime Effect Kind-8 Tier2 Named Availability Note
+
+This note records the current named-candidate availability comparison between the strongest
+title-overlap pair:
+
+- `Louisiana.gmp`
+- `Dutchlantis.gmp`
+
+The comparison uses the checked `rt3_105_save_name_table_probe` surface from `inspect-smp`.
+
+## Immediate Result
+
+`Warehouse05` is **not** the differentiator.
+
+Observed values:
+
+- `Warehouse05`
+  - `Louisiana.gmp = 1`
+  - `Dutchlantis.gmp = 1`
+- `Port01`
+  - `Louisiana.gmp = 1`
+  - `Dutchlantis.gmp = 1`
+- `Furniture Factory`
+  - `Louisiana.gmp = 1`
+  - `Dutchlantis.gmp = 1`
+- `FarmGrain`
+  - `Louisiana.gmp = 1`
+  - `Dutchlantis.gmp = 1`
+- `Logging Camp`
+  - `Louisiana.gmp = 1`
+  - `Dutchlantis.gmp = 1`
+
+So the strongest current `Louisiana -> Dutchlantis` title overlap does not also come with a unique
+`Warehouse05` availability toggle that would directly explain the one-row
+`Add Building Warehouse05` dispatch cluster in `Louisiana.gmp`.
+
+## Full Named-Availability Differences
+
+The current comparison shows `18` differing names:
+
+- `AluminumMill`: `Louisiana = 0`, `Dutchlantis = 1`
+- `AutoPlant`: `Louisiana = 0`, `Dutchlantis = 1`
+- `Bauxite Mine`: `Louisiana = 0`, `Dutchlantis = 1`
+- `Chemical Plant`: `Louisiana = 0`, `Dutchlantis = 1`
+- `Farm Corn`: `Louisiana = 1`, `Dutchlantis = 0`
+- `FarmCotton`: `Louisiana = 1`, `Dutchlantis = 0`
+- `FarmRice`: `Louisiana = 1`, `Dutchlantis = 0`
+- `FarmSheep`: `Louisiana = 0`, `Dutchlantis = 1`
+- `FarmSugar`: `Louisiana = 1`, `Dutchlantis = 0`
+- `Fertilizer Factory`: `Louisiana = 0`, `Dutchlantis = 1`
+- `Iron Mine`: `Louisiana = 0`, `Dutchlantis = 1`
+- `Nuclear Power Plant`: `Louisiana = 0`, `Dutchlantis = 1`
+- `Oil Refinery`: `Louisiana = 1`, `Dutchlantis = 0`
+- `Plastics Factory`: `Louisiana = 0`, `Dutchlantis = 1`
+- `Recycling Plant`: `Louisiana = 0`, `Dutchlantis = 1`
+- `Steel Mill`: `Louisiana = 0`, `Dutchlantis = 1`
+- `Tool And Die`: `Louisiana = 0`, `Dutchlantis = 1`
+- `Uranium Mine`: `Louisiana = 0`, `Dutchlantis = 1`
+
+## Current Implication
+
+The Tier 2 candidate/world-state rebuild strip remains plausible in general because it owns named
+candidate availability seeding and refresh, but the current evidence no longer supports the narrow
+claim that `Louisiana.gmp` gets its `Add Building Warehouse05` row from a unique
+`Warehouse05` availability difference relative to `Dutchlantis.gmp`.
+
+Two deeper grounded notes tighten that further:
+
+- `structure_candidate_collection_rebuild_runtime_records_from_scenario_state` `0x00412d70`
+  does **not** consult the scenario-side recipe-book name at `[state+0x0fe8]`; it formats the
+  rebuilt candidate display stem from one of two fixed built-in roots `0x005c93d8` or
+  `0x005c93e8` plus the current ordinal.
+- `scenario_state_upsert_named_candidate_availability_record_and_refresh_runtime_filters`
+  `0x00434f20` now reads safely as a real boolean availability override writer rather than a wider
+  mode enum.
+
+So the next Tier 2 recovery question is now tighter still:
+
+- whether the relevant difference is in broader candidate-state rebuild sequencing, latch refresh,
+  or cargo-membership/runtime-record reconstruction under
+  `0x00437737 / 0x00412c10 / 0x00412bd0 / 0x00412d70 / 0x00412fb0`,
+  rather than in the direct named availability bit for `Warehouse05` itself.