Document D&D scene description artifacts

docs/internal/llm.md

@@ -39,7 +39,8 @@ without exposing Scriptorium types through stage contracts.
 7. injecting that one shared client into complete pipeline preparation before
    the source file is read or the runner is invoked.
 
-The D&D scene chunker and spell, NPC, and combat extractors retain this
+The D&D scene chunker and spell, NPC, combat-turn, NPC-interaction, and
+scene-description extractors retain this
 injected client and use it for every structured completion. Operation requests
 do not carry an LLM client.
 
@@ -98,7 +99,8 @@ D&D prompt content. `internal/framework/promptfs` provides the domain-neutral
 filesystem composition helper used to combine module-owned files with shared
 domain prompt fragments.
 
-The D&D scene chunker and spell, NPC, combat-turn, and NPC-interaction extractors each declare an
+The D&D scene chunker and spell, NPC, combat-turn, NPC-interaction, and
+scene-description extractors each declare an
 ordered prompt asset manifest. The manifest lists the package-owned YAML and
 Markdown files, then the exact shared fragments rendered by that prompt; the
 same ordered list drives both filesystem mounting and the prompt fingerprint.
@@ -132,7 +134,8 @@ prompt places its final boundary on its lane-specific instructions, immediately
 before the transcript. The transcript does not carry cache control because no
 reusable content follows it.
 
-Accordingly, the common prefix of all four extraction prompts is system,
+Accordingly, the common prefix of the spell, NPC, combat, and interaction
+extraction prompts is system,
 extraction evidence, identity, and campaign references. The NPC prompt then
 renders task, instructions, and transcript. Spell renders the NPC registry,
 catalog, task, instructions, and transcript. Combat renders the NPC registry,
@@ -142,6 +145,14 @@ scene chunker is not an extraction lane: it retains its separate system,
 transcript, campaign-reference, task, and instruction order and marks its
 transcript and campaign-reference messages ephemeral.
 
+The scene-description extractor deliberately omits the citation-oriented
+`common-dnd-extraction-evidence.md` asset because Notarius attaches the whole
+accepted chunk range itself. Its manifest is system, shared identity, shared
+campaign references, lane task, lane instructions, then the transcript. The
+identity, campaign-reference, and instruction messages are ephemeral cache
+boundaries; the transcript is last and has no cache control. Compatible shared
+messages remain canonical shared assets rather than copied package text.
+
 Shared wording belongs in the canonical assets under
 `internal/modules/dnd/shared`; extraction packages reference those assets in
 their manifests instead of copying similar text into package-local files.
@@ -155,7 +166,8 @@ return defensive copies, and expose a diagnostics map that omits schema bytes.
 The small framework registry contains only generic test schemas; production
 schemas remain package-owned.
 
-The spell, NPC, combat, and NPC-interaction extractors' package-owned prompts declare their
+The spell, NPC, combat, NPC-interaction, and scene-description extractors'
+package-owned prompts declare their
 structured JSON inputs and private response schemas. Each private response
 schema remains separate from its durable artifact codec schema; this work does
 not use shared schema fragments or schema generation. Those private schemas own

docs/internal/modules.md

@@ -17,16 +17,16 @@ validator registry. Package-family registrars compose those leaf registrations
 into the production catalog and own family-level policy such as default
 validator chains and prompt asset collection.
 
-Production input, chunk, output, and D&D spell-, combat-, and interaction-extract packages
+Production input, chunk, output, and D&D spell-, NPC-, combat-, interaction-, and scene-description-extract packages
 register strict option decoders and run-local builders. Preparation decodes their options into
 implementation-owned values and injects dependencies plus the materialized
 reference set for the selected target. Each builder receives an isolated clone
-of that set; input and output builders receive no references. The spell,
-combat, and interaction extractors are typed over the canonical D&D model. D&D validators, merge,
+of that set; input and output builders receive no references. The spell, NPC,
+combat, interaction, and scene-description extractors are typed over the canonical D&D model. D&D validators, merge,
 and normalize use typed variants; JSON representation validators use serialized
 requests; and unconditional validators expose separate chunk and typed
 variants. The D&D production registrar registers the canonical typed spell,
-NPC, combat, and interaction implementations, including their kind-specific merge and
+NPC, combat, interaction, and scene-description implementations, including their kind-specific merge and
 normalize behavior.
 
 For D&D artifact defaults, generic JSON syntax validation runs first. Rejecting
@@ -54,7 +54,7 @@ package-local embedded assets. Shared filesystem composition belongs in
 `internal/framework/promptfs`; reusable D&D prompt fragments, reference
 declarations, prompt-input assembly, and source-unit/citation helpers belong in
 `internal/modules/dnd/shared`, which also owns bounded D&D diagnostics. The
-D&D scene chunker and spell, NPC, combat-turn, and NPC-interaction extractors use ordered
+D&D scene chunker and spell, NPC, combat-turn, NPC-interaction, and scene-description extractors use ordered
 package-local prompt manifests for both rendering and prompt fingerprinting, so
 only the shared fragments each prompt actually renders participate in either
 operation. Extraction prompts place stable shared and lane-specific context
@@ -128,6 +128,12 @@ It is registered by the production D&D family registrar for the selectable
 interaction lane. Its external contract is documented in the
 [D&D NPC interaction artifact contract](../integrations/dnd-npc-interaction-artifacts.md).
 
+The `internal/modules/dnd/codec/scenedescriptions` package owns the durable
+`dnd/scene-description-list` schema and candidate versus approved JSON boundary.
+It is registered by the production D&D family registrar. Its external contract
+is documented in the
+[D&D scene-description artifact contract](../integrations/dnd-scene-description-artifacts.md).
+
 ## Input Adapter
 
 ### `internal/modules/seriatim/input/transcript`
@@ -268,6 +274,18 @@ integer source-unit candidates unchanged. Required semantic content, non-empty
 evidence, and valid source ranges are rejected by the deterministic shape and
 source-reference validators.
 
+### `internal/modules/dnd/extract/scenedescriptions`
+
+The scene-description extractor makes one structured completion for each
+accepted chunk and maps its private `kind`, `title`, and `summary` response to
+one `dnd.SceneDescription`. It assigns the current chunk ID and exact range,
+preserves kind without repair, and trims only title and summary whitespace.
+Optional players, party, and glossary references can disambiguate prompt terms
+but do not supply evidence. The package owns its private schema, prompt assets,
+and mapping fingerprint; deterministic validators own the durable semantic
+checks. The durable contract is defined in the
+[D&D scene-description artifact contract](../integrations/dnd-scene-description-artifacts.md).
+
 ### `internal/modules/dnd/extract/combatturns`
 
 The combat extractor prepares one structured request per supplied chunk using
@@ -382,6 +400,15 @@ merge, or summarize distinct occurrences. Its metadata and fingerprints expose
 the normalization and NPC identity policies; generated registry identity stays
 in framework provenance and checkpoint dependencies.
 
+### `internal/modules/dnd/normalize/scenedescriptions`
+
+The scene-description normalizer has no options or references. It validates
+each source range against the source document, trims title and summary
+whitespace, orders records by source position then ID, removes only exactly
+identical records, and rejects conflicting reused IDs or ranges. Its policy
+fingerprint identifies this deterministic behavior; the matching invariant
+validator checks the normalized result in the production chain.
+
 ## Output Encoder
 
 ### `internal/modules/generic/output/json`
@@ -484,6 +511,18 @@ order, chronology, and exact duplicate identity. The production chains run
 shape, registry, and source-reference checks before JSON Schema validation;
 relatedness remains warning-only and last.
 
+## D&D Scene Description Validators
+
+Scene-description shape validation owns the non-empty list, trimmed ID and
+prose, closed kind, and basic source-reference shape. Extract-stage source
+validation additionally requires the one record to attach exactly to the
+current accepted chunk; later source validation checks source membership.
+Relatedness checks the title and summary independently against only their cited
+transcript range and emits bounded advisory warnings. The normalized-invariants
+validator owns ordering, exact duplicate elimination, and conflicting ID or
+range detection. The production chains run shape and source-reference checks
+before JSON Schema validation; the warning-only relatedness check is last.
+
 ## Production Registration
 
 Production composition occurs through family registrars. The CLI allocates one
@@ -492,7 +531,7 @@ complete framework registry set and one LLM asset registry. It invokes
 `internal/modules/seriatim/register`, and `internal/modules/dnd/register` in
 that order, then exposes the matching catalog for resolution. The generic and
 Seriatim registrars own their production leaf registrations. The D&D registrar
-owns D&D leaf registrations, typed spell, NPC, combat, and interaction default-validator
+owns D&D leaf registrations, typed spell, NPC, combat, interaction, and scene-description default-validator
 chains, typed append-order specializations, and D&D prompt/schema asset
 collection. Its registration helpers group module, validator, prompt-asset, and
 chain composition while retaining artifact-specific merge and clone behavior in

docs/internal/overview.md

@@ -68,9 +68,10 @@ run-local construction closures. Preparation injects shared dependencies and
 constructs input, chunk, validators, ordered lanes, and output before source
 parsing. Production modules use strict construction-time option decoding, and
 LLM-backed modules retain the injected shared client. The D&D family registers
-the canonical `dnd/spell-list`, `dnd/npc-list`, `dnd/combat-turn-list`, and
-`dnd/npc-interaction-list` codecs, typed spell, NPC, combat, and interaction
-extractors and normalizers, validators,
+the canonical `dnd/spell-list`, `dnd/npc-list`, `dnd/combat-turn-list`,
+`dnd/npc-interaction-list`, and `dnd/scene-description-list` codecs, typed
+spell, NPC, combat, interaction, and scene-description extractors and
+normalizers, validators,
 plus kind-specific generic merge strategies; generic JSON validators use the
 serialized-validation contract. The runner executes lanes through
 private exact-type-checked closures, coordinates extract results independently
@@ -89,20 +90,24 @@ Configuration. The implemented module packages are:
 | `internal/modules/seriatim/input/transcript` | Parses the supported Seriatim transcript format into the generic source model. |
 | `internal/modules/generic/chunk/units` | Splits ordered source units by unit count and overlap. |
 | `internal/modules/dnd/chunk/scenes` | Produces contiguous D&D scene chunks from structured model output. |
-| `internal/modules/dnd` | Owns the canonical D&D spell-list, spell-cast, NPC-list, NPC, combat-turn-list, combat-turn, NPC-interaction-list, and NPC-interaction artifact types. |
+| `internal/modules/dnd` | Owns the canonical D&D spell-list, spell-cast, NPC-list, NPC, combat-turn-list, combat-turn, NPC-interaction-list, and scene-description-list artifact types. |
 | `internal/modules/dnd/codec/spells` | Strictly decodes and stably encodes the durable D&D spell-list representation. |
 | `internal/modules/dnd/codec/npcs` | Strictly decodes and stably encodes the durable D&D NPC-list representation. |
 | `internal/modules/dnd/codec/combatturns` | Strictly decodes and stably encodes the durable D&D combat-turn-list representation. |
 | `internal/modules/dnd/codec/npcinteractions` | Strictly decodes and stably encodes the durable D&D NPC-interaction-list representation. |
+| `internal/modules/dnd/codec/scenedescriptions` | Strictly decodes and stably encodes the durable D&D scene-description-list representation. |
 | `internal/modules/dnd/extract/spells` | Maps private structured model output to canonical source-grounded D&D spell lists. |
 | `internal/modules/dnd/extract/npcs` | Maps private structured model output to canonical source-grounded D&D NPC lists. |
 | `internal/modules/dnd/extract/combatturns` | Maps private structured model output to source-grounded D&D combat-turn candidates and preserves chronology and invalid candidate values for validators. |
 | `internal/modules/dnd/extract/npcinteractions` | Maps private structured model output to current-source NPC interaction candidates grounded by a required registry. |
+| `internal/modules/dnd/extract/scenedescriptions` | Maps one private scene description to the current accepted chunk's ID and exact range. |
 | `internal/modules/dnd/npcinteractions` | Owns canonical source-reference ordering, occurrence ordering, valid-evidence checks, and exact interaction identity shared by normalization and invariant validation. |
 | `internal/modules/dnd/normalize/combatturns` | Canonicalizes and orders merged combat turns, applies exact NPC identity matches, and collapses only exact valid-evidence duplicates. |
 | `internal/modules/dnd/normalize/npcinteractions` | Canonicalizes required-registry names, orders interaction occurrences, and collapses only exact valid-evidence duplicates. |
+| `internal/modules/dnd/normalize/scenedescriptions` | Trims, source-orders, and removes only exactly identical scene descriptions while rejecting ID and range conflicts. |
 | `internal/modules/dnd/validate/combatturns` | Provides deterministic shape, source-reference, source-relatedness, and normalized-invariant validation for the production combat chains. |
 | `internal/modules/dnd/validate/npcinteractions` | Provides deterministic shape, registry, source-reference, source-relatedness, and normalized-invariant validation for interaction chains. |
+| `internal/modules/dnd/validate/scenedescriptions` | Provides deterministic shape, exact extraction attachment, source-relatedness, and normalized-invariant validation for scene-description chains. |
 | `internal/modules/dnd/npcs/registry` | Resolves validated normalized NPC references into immutable grounding data and exact identity lookup. |
 | `internal/modules/dnd/npcs/identity` | Owns Unicode-aware NPC identity, ID derivation, and registry collision validation. |
 | `internal/modules/dnd/spells/catalog` | Embeds and validates the versioned D&D 5e 2014 SRD catalog, composes optional overlays, and provides immutable effective lookup. |

docs/internal/pipeline.md

@@ -119,10 +119,10 @@ extractor's artifact kind, so variants under one reusable key may declare
 different capabilities and reference slots. Kind-neutral registry inspection
 selects the first registered artifact kind in sorted order.
 
-Production composition registers the D&D spell-list codec and typed extractor,
-matching typed merge, normalize, and semantic-validator variants, and
-serialized JSON validators. Every artifact lane resolves through the typed
-registries and a matching codec.
+Production composition registers the D&D spell-list, NPC-list, combat-turn-list,
+NPC-interaction-list, and scene-description-list codecs and typed lane
+variants, plus serialized JSON validators. Every artifact lane resolves through
+the typed registries and a matching codec.
 
 A `ModuleSpec` declares its stage plus required and provided capabilities.
 Chunk, extract, merge, and normalize specs may also declare reference slots.