Ground spell extraction with the effective catalog

docs/config.md

@@ -325,16 +325,20 @@ declares optional `players`, `party`, and `glossary` references for scene
 disambiguation, and accepts `roster` as a deprecated compatibility alias for
 `party`.
 
-The `dnd/spells` extractor declares optional reference slots:
+The `dnd/spells` extractor declares optional campaign reference slots:
 
 - `players`
 - `party`
 - `glossary`
 - `roster` as a deprecated compatibility alias for `party`
 
-Both modules accept UTF-8 plain text, Markdown, YAML, or JSON reference files.
+These campaign slots accept UTF-8 plain text, Markdown, YAML, or JSON reference
-The extractor uses references only as supporting disambiguation material; spell
+files. The extractor also declares an optional `spell_catalog` slot that accepts
-casts still must be present in the source transcript.
+one UTF-8 `application/json` overlay bundle no larger than 1 MiB. The slot does
+not allow multiple files. Its format is defined in the
+[spell-catalog overlay contract](integrations/dnd-spell-catalog-overlays.md).
+The extractor uses campaign references only as supporting disambiguation
+material; spell casts still must be present in the source transcript.
 
 ## State Surfaces
 

docs/integrations/dnd-spell-catalog-overlays.md

@@ -5,6 +5,12 @@ resolver. An overlay supplies campaign-specific spell names and aliases for
 recognition. It does not supply spell rules, levels, classes, effects, or
 source evidence.
 
+The `dnd/spells` extractor accepts one optional UTF-8 `application/json` overlay
+bundle through its `spell_catalog` reference slot. The framework materializes
+that file relative to the configuration or command-line binding, enforces the
+1 MiB slot limit, and records its origin and raw digest separately from the
+effective catalog digest.
+
 ## Shape
 
 An overlay bundle has this shape:

docs/internal/llm.md

@@ -103,6 +103,13 @@ 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 extractor's package-owned prompt declares a required
+`application/json` `spell_catalog` input. The extractor generates that input
+from its prepared effective catalog as `{"spell_names":[...]}` using sorted
+canonical names only. Its input digest covers those generated bytes; manifests
+record catalog identity and digest rather than names, aliases, overlay bytes,
+or source metadata.
+
 ## Debug And Redaction Boundaries
 
 The pipeline may wrap the client with a debug recorder that captures prepared

docs/internal/modules.md

@@ -153,7 +153,12 @@ earliest cited unit, and returns `dnd.SpellList`.
 
 The extractor owns its private model-response DTO, embedded prompt, LLM response
 schema, strict option decoder, injected shared LLM client, and prompt/schema
-manifest metadata. The separate `internal/modules/dnd/codec/spells` package
+manifest metadata. During preparation it resolves the optional `spell_catalog`
+reference into an immutable effective catalog and adds a generated
+canonical-name-only JSON input to every structured completion request. Overlay
+failures therefore stop construction before source parsing or an LLM call;
+campaign references remain separate disambiguation inputs and never become
+source evidence. The separate `internal/modules/dnd/codec/spells` package
 owns the durable schema and stable JSON representation for artifact kind
 `dnd/spell-list`. The runner keeps the result typed through validators and later
 stages, using the codec only for checkpoint, debug, and output boundaries.

examples/dnd-spells-catalog.json

@@ -0,0 +1,21 @@
+{
+  "schema_version": "notarius.dnd.spell-catalog-overlay.v1",
+  "catalogs": [
+    {
+      "id": "notarius.example-campaign",
+      "ruleset": "dnd-5e-2014",
+      "source": {
+        "title": "Notarius example campaign spell names",
+        "version": "1",
+        "url": "",
+        "license": ""
+      },
+      "spells": [
+        {
+          "name": "Aegis of Emberfall",
+          "aliases": ["Emberfall Aegis"]
+        }
+      ]
+    }
+  ]
+}

examples/dnd-spells-production.config.yml

@@ -29,3 +29,5 @@ pipelines:
         extract:
           module: dnd/spells
           retries: 2
+          references:
+            spell_catalog: ./dnd-spells-catalog.json

internal/cli/example_contract_test.go

@@ -10,6 +10,7 @@ import (
 	"gitea.maximumdirect.net/eric/notarius/internal/core/artifacts"
 	"gitea.maximumdirect.net/eric/notarius/internal/core/config"
 	"gitea.maximumdirect.net/eric/notarius/internal/core/debugbundle"
+	"gitea.maximumdirect.net/eric/notarius/internal/framework/pipeline"
 	"gitea.maximumdirect.net/eric/notarius/internal/modules/dnd"
 )
 
@@ -18,9 +19,22 @@ func TestMaintainedExamplesLoadResolveAndList(t *testing.T) {
 	for _, example := range maintainedExampleFiles(t) {
 		t.Run(example.name, func(t *testing.T) {
 			cfg := loadMaintainedExample(t, example.path)
-			if _, err := cfg.Resolve(resolveInputForMaintainedExample(components, "dnd-session")); err != nil {
+			effective, err := cfg.Resolve(resolveInputForMaintainedExample(components, "dnd-session"))
+			if err != nil {
 				t.Fatalf("resolve maintained example: %v", err)
 			}
+			materialized, _, err := pipeline.MaterializeReferences(effective.ResolvedPipeline, catalogFromRegistries(components.registries), pipeline.ReferenceMaterializationOptions{
+				ConfigPath: example.path,
+				WorkingDir: filepath.Dir(example.path),
+			})
+			if err != nil {
+				t.Fatalf("materialize maintained example references: %v", err)
+			}
+			if example.name == "production" {
+				if len(materialized.ArtifactLanes) != 1 || len(materialized.ArtifactLanes[0].ExtractReferences.ReferenceSet.Slots["spell_catalog"].Items) != 1 {
+					t.Fatalf("production spell catalog reference was not materialized: %#v", materialized.ArtifactLanes)
+				}
+			}
 			var stdout, stderr strings.Builder
 			code := RunWithOptions([]string{"pipelines", "list", "--config", example.path}, &stdout, &stderr, productionOptionsFromComponents(components))
 			if code != 0 || stdout.String() != "dnd-session\n" || stderr.Len() != 0 {

internal/cli/production_contract_test.go

@@ -70,6 +70,7 @@ func TestProductionCatalogCoversMaintainedConfigurations(t *testing.T) {
 		"dnd.scenes/sharedassets/common-dnd-transcript.md",
 		"dnd.scenes/task.md",
 		"dnd.spells/dnd.spells.yaml",
+		"dnd.spells/catalog.md",
 		"dnd.spells/instructions.md",
 		"dnd.spells/sharedassets/common-dnd-references.md",
 		"dnd.spells/sharedassets/common-dnd-system.md",

internal/modules/dnd/extract/spells/assets/prompts/catalog.md

@@ -0,0 +1,6 @@
+The canonical spell-name catalog for this extraction is provided below as JSON.
+Return spell names using the catalog's canonical spelling exactly. Aliases and
+other campaign reference material are not part of this catalog input and must
+not be copied into the output as spell names.
+
+{{ input "spell_catalog" }}

internal/modules/dnd/extract/spells/assets/prompts/dnd.spells.yaml

@@ -5,6 +5,9 @@ inputs:
   - name: transcript
     required: true
     content_type: application/json
+  - name: spell_catalog
+    required: true
+    content_type: application/json
   - name: players
     required: false
     content_type: text/plain
@@ -25,6 +28,8 @@ messages:
     content_file: ./sharedassets/common-dnd-references.md
     cache_control:
       type: ephemeral
+  - role: user
+    content_file: ./catalog.md
   - role: user
     content_file: ./task.md
   - role: user

internal/modules/dnd/extract/spells/assets/prompts/instructions.md

@@ -5,8 +5,12 @@ source_id automatically.
 Return only D&D spell-cast artifacts. For each spell cast, identify the in-world
 caster, spell name, effect, narrative description, and source references.
 
-Use player, party, and glossary reference material only to clarify source text.
+Use the canonical spell-name catalog to select spell names. Do not return a
-Do not return spells, casters, or effects that are mentioned only in reference
+spell name absent from that catalog, even when it is suggested by general D&D
-material.
+knowledge or reference material.
+
+Use player, party, and glossary reference material only to clarify source text;
+references are not source evidence for a spell cast. Do not return spells,
+casters, or effects that are mentioned only in reference material.
 
 Return exactly one JSON object and no explanatory text.

internal/modules/dnd/extract/spells/assets/prompts/task.md

@@ -3,3 +3,7 @@ Extract Dungeons & Dragons spell-cast artifacts from the provided transcript.
 Extract only spell casts that are supported by the transcript. Do not infer
 spells from general D&D knowledge or from table chatter that does not identify a
 spell being cast.
+
+Use the provided canonical spell-name catalog when naming each extracted spell.
+Return the canonical catalog spelling exactly. The catalog is a recognition
+aid; it does not establish that a spell was cast.

internal/modules/dnd/extract/spells/catalog_prompt_input.go

@@ -0,0 +1,29 @@
+package spells
+
+import (
+	"crypto/sha256"
+	"encoding/hex"
+	"encoding/json"
+	"fmt"
+
+	"gitea.maximumdirect.net/eric/notarius/internal/framework/contracts"
+	spellcatalog "gitea.maximumdirect.net/eric/notarius/internal/modules/dnd/spells/catalog"
+)
+
+func newCatalogPromptInput(effective spellcatalog.EffectiveCatalog) (contracts.LLMInputMaterial, error) {
+	content, err := json.Marshal(struct {
+		SpellNames []string `json:"spell_names"`
+	}{SpellNames: effective.CanonicalNames()})
+	if err != nil {
+		return contracts.LLMInputMaterial{}, fmt.Errorf("encode canonical spell names: %w", err)
+	}
+	sum := sha256.Sum256(content)
+	digest := "sha256:" + hex.EncodeToString(sum[:])
+	return contracts.NewLLMInputMaterial(
+		spellcatalog.SpellCatalogReferenceSlot,
+		"application/json",
+		content,
+		digest,
+		"",
+	), nil
+}

internal/modules/dnd/extract/spells/extractor.go

@@ -9,6 +9,7 @@ import (
 	"gitea.maximumdirect.net/eric/notarius/internal/framework/pipeline"
 	"gitea.maximumdirect.net/eric/notarius/internal/modules/dnd"
 	"gitea.maximumdirect.net/eric/notarius/internal/modules/dnd/shared"
+	spellcatalog "gitea.maximumdirect.net/eric/notarius/internal/modules/dnd/spells/catalog"
 )
 
 const Key = "dnd/spells"
@@ -31,19 +32,50 @@ var referenceSlotDescriptions = shared.ReferenceSlotDescriptions{
 	Roster:   "Deprecated alias for party roster reference material used only for disambiguation.",
 }
 
+func referenceSlots() []contracts.ReferenceSlot {
+	slots := shared.ReferenceSlots(referenceSlotDescriptions)
+	return append(slots, contracts.ReferenceSlot{
+		Name:               spellcatalog.SpellCatalogReferenceSlot,
+		Description:        "Optional canonical spell-name catalog used for extraction grounding.",
+		AcceptedMediaTypes: []string{"application/json"},
+		MaxBytes:           1048576,
+	})
+}
+
 var _ contracts.Extractor[dnd.SpellList] = (*Extractor)(nil)
 
 type Options struct{}
 
 type Extractor struct {
-	llm contracts.StructuredLLMClient
+	llm                contracts.StructuredLLMClient
+	effectiveCatalog   spellcatalog.EffectiveCatalog
+	catalogPromptInput contracts.LLMInputMaterial
 }
 
-func New(llmClient contracts.StructuredLLMClient, _ Options) (*Extractor, error) {
+func New(llmClient contracts.StructuredLLMClient, _ Options, references ...contracts.ReferenceSet) (*Extractor, error) {
 	if llmClient == nil {
 		return nil, extractorErrorf("LLM client must not be nil")
 	}
-	return &Extractor{llm: llmClient}, nil
+	if len(references) > 1 {
+		return nil, extractorErrorf("at most one reference set may be supplied")
+	}
+	var referenceSet contracts.ReferenceSet
+	if len(references) == 1 {
+		referenceSet = references[0]
+	}
+	effectiveCatalog, err := spellcatalog.ResolveEffectiveCatalog(referenceSet)
+	if err != nil {
+		return nil, extractorErrorf("resolve effective spell catalog: %w", err)
+	}
+	catalogPromptInput, err := newCatalogPromptInput(effectiveCatalog)
+	if err != nil {
+		return nil, extractorErrorf("prepare spell catalog prompt input: %w", err)
+	}
+	return &Extractor{
+		llm:                llmClient,
+		effectiveCatalog:   effectiveCatalog,
+		catalogPromptInput: catalogPromptInput,
+	}, nil
 }
 
 func (e *Extractor) Key() string {
@@ -51,7 +83,7 @@ func (e *Extractor) Key() string {
 }
 
 func (e *Extractor) ReferenceSlots() []contracts.ReferenceSlot {
-	return shared.ReferenceSlots(referenceSlotDescriptions)
+	return referenceSlots()
 }
 
 func (e *Extractor) ManifestMetadata() map[string]any {
@@ -63,6 +95,9 @@ func (e *Extractor) ManifestMetadata() map[string]any {
 		"prompt_id":            PromptID,
 		"prompt_version":       SchemaVersion,
 		"prompt_sha256":        promptSHA,
+		"catalog_base_id":      e.effectiveCatalog.BaseID(),
+		"catalog_digest":       e.effectiveCatalog.Digest(),
+		"catalog_overlay_ids":  e.effectiveCatalog.OverlayIDs(),
 		"response_schema_key":  string(ResponseSchemaKey),
 		"response_schema_id":   ResponseSchemaID,
 		"response_schema_name": ResponseSchemaName,
@@ -102,13 +137,15 @@ func (e *Extractor) Extract(ctx context.Context, req contracts.TypedExtractionRe
 	}
 
 	var response extractionResponse
+	inputs := shared.PromptInputs(sourceInput, req.References)
+	inputs[spellcatalog.SpellCatalogReferenceSlot] = e.catalogPromptInput.Clone()
 	if _, err := e.llm.CompleteStructured(ctx, contracts.StructuredCompletionRequest{
 		StageName:     Key,
 		PromptID:      PromptID,
 		PromptVersion: SchemaVersion,
 		ProfileID:     req.LLMProfile,
 		SessionID:     req.SessionID,
-		Inputs:        shared.PromptInputs(sourceInput, req.References),
+		Inputs:        inputs,
 	}, &response); err != nil {
 		return contracts.TypedExtractionResult[dnd.SpellList]{}, extractorErrorf("complete structured output: %w", err)
 	}
@@ -143,7 +180,7 @@ func ModuleSpec() pipeline.ModuleSpec {
 		Requires:       append([]string(nil), requiredCapabilities...),
 		Provides:       append([]string(nil), providedCapabilities...),
 		ArtifactKind:   dnd.SpellListKind,
-		ReferenceSlots: shared.ReferenceSlots(referenceSlotDescriptions),
+		ReferenceSlots: referenceSlots(),
 	}
 }
 
@@ -153,7 +190,7 @@ func Register(registry *pipeline.ExtractorRegistry) error {
 		if err != nil {
 			return nil, err
 		}
-		return New(request.Dependencies.LLM, options)
+		return New(request.Dependencies.LLM, options, request.References)
 	})
 }
 

internal/modules/dnd/extract/spells/extractor_test.go

@@ -2,8 +2,10 @@ package spells
 
 import (
 	"context"
+	"encoding/json"
 	"errors"
 	"reflect"
+	"sort"
 	"strings"
 	"testing"
 
@@ -11,6 +13,7 @@ import (
 	"gitea.maximumdirect.net/eric/notarius/internal/framework/contracts"
 	"gitea.maximumdirect.net/eric/notarius/internal/modules/dnd"
 	"gitea.maximumdirect.net/eric/notarius/internal/modules/dnd/shared"
+	spellcatalog "gitea.maximumdirect.net/eric/notarius/internal/modules/dnd/spells/catalog"
 )
 
 func TestExtractReturnsCanonicalSpellListFromPrivateResponse(t *testing.T) {
@@ -62,6 +65,78 @@ func TestExtractReturnsCanonicalSpellListFromPrivateResponse(t *testing.T) {
 	if got := string(transcript.Content); got != string(req.Chunk.Content) {
 		t.Fatalf("transcript content = %q, want chunk content %q", got, req.Chunk.Content)
 	}
+	catalogInput := llmReq.Inputs[spellcatalog.SpellCatalogReferenceSlot]
+	if catalogInput.Name != spellcatalog.SpellCatalogReferenceSlot || catalogInput.MediaType != "application/json" || catalogInput.OriginURI != "" || !strings.HasPrefix(catalogInput.Digest, "sha256:") {
+		t.Fatalf("catalog prompt input metadata = %#v", catalogInput)
+	}
+	var catalogPayload struct {
+		SpellNames []string `json:"spell_names"`
+	}
+	if err := json.Unmarshal(catalogInput.Content, &catalogPayload); err != nil {
+		t.Fatalf("decode catalog prompt input: %v", err)
+	}
+	base, err := spellcatalog.LoadSRD5E2014()
+	if err != nil {
+		t.Fatal(err)
+	}
+	wantNames := make([]string, 0, len(base.Spells()))
+	for _, spell := range base.Spells() {
+		wantNames = append(wantNames, spell.Name)
+	}
+	sort.Strings(wantNames)
+	if !reflect.DeepEqual(catalogPayload.SpellNames, wantNames) || !sort.StringsAreSorted(catalogPayload.SpellNames) {
+		t.Fatalf("catalog prompt names = %d entries, want sorted base catalog", len(catalogPayload.SpellNames))
+	}
+}
+
+func TestExtractPromptUsesCanonicalOverlayNamesWithoutAliasesOrMetadata(t *testing.T) {
+	client := &fakeSpellsLLMClient{response: extractionResponse{SpellCasts: []spellCastResponse{}}}
+	if _, err := newExtractor(t, client, overlaySpellCatalogReference()).Extract(context.Background(), extractionRequest()); err != nil {
+		t.Fatalf("Extract() error = %v, want nil", err)
+	}
+	input := client.requests[0].Inputs[spellcatalog.SpellCatalogReferenceSlot]
+	content := string(input.Content)
+	for _, expected := range []string{"Aegis of Emberfall", `"spell_names"`} {
+		if !strings.Contains(content, expected) {
+			t.Fatalf("catalog prompt input = %q, want %q", content, expected)
+		}
+	}
+	for _, forbidden := range []string{"Emberfall Aegis", "Private campaign source", "file:///private-source.json", "private"} {
+		if strings.Contains(content, forbidden) {
+			t.Fatalf("catalog prompt input leaked %q: %s", forbidden, content)
+		}
+	}
+
+	metadata := newExtractor(t, &fakeSpellsLLMClient{}, overlaySpellCatalogReference()).ManifestMetadata()
+	if metadata["catalog_base_id"] != spellcatalog.SRD5E2014ID {
+		t.Fatalf("catalog base metadata = %#v", metadata["catalog_base_id"])
+	}
+	if digest, ok := metadata["catalog_digest"].(string); !ok || !strings.HasPrefix(digest, "sha256:") {
+		t.Fatalf("catalog digest metadata = %#v", metadata["catalog_digest"])
+	}
+	if got, ok := metadata["catalog_overlay_ids"].([]string); !ok || !reflect.DeepEqual(got, []string{"campaign.example"}) {
+		t.Fatalf("catalog overlay metadata = %#v", metadata["catalog_overlay_ids"])
+	}
+	encoded, err := json.Marshal(metadata)
+	if err != nil {
+		t.Fatal(err)
+	}
+	for _, forbidden := range []string{"Aegis of Emberfall", "Emberfall Aegis", "Private campaign source", "file:///private-source.json"} {
+		if strings.Contains(string(encoded), forbidden) {
+			t.Fatalf("manifest metadata leaked %q: %s", forbidden, encoded)
+		}
+	}
+}
+
+func TestNewRejectsMalformedCatalogBeforeLLMCall(t *testing.T) {
+	client := &fakeSpellsLLMClient{}
+	_, err := New(client, Options{}, spellCatalogReference(`{"schema_version":"notarius.dnd.spell-catalog-overlay.v2","catalogs":[]}`))
+	if err == nil || !strings.Contains(err.Error(), "resolve effective spell catalog") {
+		t.Fatalf("New() error = %v, want effective catalog error", err)
+	}
+	if len(client.requests) != 0 {
+		t.Fatalf("LLM calls = %d, want none during failed construction", len(client.requests))
+	}
 }
 
 func TestExtractorManifestMetadataIncludesLLMSchemaProvenance(t *testing.T) {

internal/modules/dnd/extract/spells/registry_test.go

@@ -54,6 +54,12 @@ func TestModuleSpec(t *testing.T) {
 				Description:        "Deprecated alias for party roster reference material used only for disambiguation.",
 				AcceptedMediaTypes: []string{"application/json", "application/x-yaml", "application/yaml", "text/markdown", "text/plain"},
 			},
+			{
+				Name:               "spell_catalog",
+				Description:        "Optional canonical spell-name catalog used for extraction grounding.",
+				AcceptedMediaTypes: []string{"application/json"},
+				MaxBytes:           1048576,
+			},
 		},
 	}
 	if !reflect.DeepEqual(got, want) {

internal/modules/dnd/extract/spells/scriptorium_assets.go

@@ -14,6 +14,7 @@ const scriptoriumPromptRoot = "assets/prompts"
 func RegisterPromptAssets(registry *llm.AssetRegistry) error {
 	promptFS, err := shared.ModulePromptFS("dnd.spells", embeddedAssets, []promptfs.ModulePromptFile{
 		{Name: "dnd.spells.yaml", Path: "assets/prompts/dnd.spells.yaml"},
+		{Name: "catalog.md", Path: "assets/prompts/catalog.md"},
 		{Name: "task.md", Path: "assets/prompts/task.md"},
 		{Name: "instructions.md", Path: "assets/prompts/instructions.md"},
 	})
@@ -30,6 +31,7 @@ func scriptoriumPromptMetadata() (string, error) {
 	scriptoriumPromptHashOnce.Do(func() {
 		parts := append([]llm.AssetHashPart{
 			{FS: embeddedAssets, Path: "assets/prompts/dnd.spells.yaml"},
+			{FS: embeddedAssets, Path: "assets/prompts/catalog.md"},
 			{FS: embeddedAssets, Path: "assets/prompts/task.md"},
 			{FS: embeddedAssets, Path: "assets/prompts/instructions.md"},
 		}, append(shared.CommonHashParts(), shared.ReferenceHashParts()...)...)

internal/modules/dnd/extract/spells/scriptorium_assets_test.go

@@ -21,8 +21,8 @@ func TestScriptoriumPromptPreparesTranscriptReferencesAndTaskMessages(t *testing
 	if prepared.OutputContract.SchemaPath != "dnd_spells_llm.v1.json" {
 		t.Fatalf("schema path = %q, want LLM-only schema", prepared.OutputContract.SchemaPath)
 	}
-	if got := len(prepared.Messages); got != 5 {
+	if got := len(prepared.Messages); got != 6 {
-		t.Fatalf("message count = %d, want 5", got)
+		t.Fatalf("message count = %d, want 6", got)
 	}
 	if !strings.Contains(prepared.Messages[1].Content, string(transcript)) {
 		t.Fatalf("transcript message did not include source input")
@@ -39,7 +39,10 @@ func TestScriptoriumPromptPreparesTranscriptReferencesAndTaskMessages(t *testing
 	if !strings.Contains(prepared.Messages[2].Content, "Shield: abjuration") {
 		t.Fatalf("reference message missing glossary content")
 	}
-	if strings.Contains(prepared.Messages[3].Content, string(transcript)) {
+	if !strings.Contains(prepared.Messages[3].Content, `{"spell_names":["Cure Wounds"]}`) {
+		t.Fatalf("catalog message missing canonical spell-name input: %s", prepared.Messages[3].Content)
+	}
+	if strings.Contains(prepared.Messages[4].Content, string(transcript)) {
 		t.Fatalf("task message leaked transcript bytes")
 	}
 }
@@ -57,7 +60,7 @@ func TestScriptoriumPromptDiagnosticsOmitRawMaterials(t *testing.T) {
 	transcript := []byte(`{"secret":"source text"}`)
 	reference := "private party note"
 	prepared := prepareSpellsPrompt(t, transcript, "private player note", reference, " ")
-	metadata := newExtractor(t, &fakeSpellsLLMClient{}).ManifestMetadata()
+	metadata := newExtractor(t, &fakeSpellsLLMClient{}, overlaySpellCatalogReference()).ManifestMetadata()
 
 	payload, err := json.Marshal(map[string]any{
 		"prepared": map[string]any{
@@ -80,6 +83,11 @@ func TestScriptoriumPromptDiagnosticsOmitRawMaterials(t *testing.T) {
 		"source text",
 		"private player note",
 		reference,
+		"Cure Wounds",
+		"Aegis of Emberfall",
+		"Emberfall Aegis",
+		"Private campaign source",
+		"file:///private-source.json",
 		`"properties"`,
 		"spell_casts",
 	} {
@@ -119,10 +127,11 @@ func prepareSpellsPrompt(t *testing.T, transcript []byte, players string, party
 		PromptVersion: SchemaVersion,
 		ProfileID:     "spell-test-profile",
 		Inputs: map[string]scriptorium.ArtifactRef{
-			"transcript": scriptorium.InlineWithURI("file:///session.json", string(transcript)),
+			"transcript":    scriptorium.InlineWithURI("file:///session.json", string(transcript)),
-			"players":    scriptorium.Inline(players),
+			"spell_catalog": scriptorium.Inline(`{"spell_names":["Cure Wounds"]}`),
-			"party":      scriptorium.Inline(party),
+			"players":       scriptorium.Inline(players),
-			"glossary":   scriptorium.Inline(glossary),
+			"party":         scriptorium.Inline(party),
+			"glossary":      scriptorium.Inline(glossary),
 		},
 	})
 	if err != nil {

internal/modules/dnd/extract/spells/test_helpers_test.go

@@ -9,6 +9,7 @@ import (
 	"gitea.maximumdirect.net/eric/notarius/internal/core/source"
 	"gitea.maximumdirect.net/eric/notarius/internal/framework/contracts"
 	"gitea.maximumdirect.net/eric/notarius/internal/modules/dnd/shared"
+	spellcatalog "gitea.maximumdirect.net/eric/notarius/internal/modules/dnd/spells/catalog"
 )
 
 func promptExtractionRequest() contracts.TypedExtractionRequest {
@@ -109,15 +110,31 @@ func mismatchedSourceInputRequest(req contracts.TypedExtractionRequest) contract
 	return req
 }
 
-func newExtractor(t *testing.T, client contracts.StructuredLLMClient) *Extractor {
+func newExtractor(t *testing.T, client contracts.StructuredLLMClient, references ...contracts.ReferenceSet) *Extractor {
 	t.Helper()
-	extractor, err := New(client, Options{})
+	extractor, err := New(client, Options{}, references...)
 	if err != nil {
 		t.Fatalf("New() error = %v, want nil", err)
 	}
 	return extractor
 }
 
+func spellCatalogReference(content string) contracts.ReferenceSet {
+	return contracts.ReferenceSet{Slots: map[string]contracts.ResolvedReferenceSlot{
+		spellcatalog.SpellCatalogReferenceSlot: {
+			Items: []contracts.ReferenceItem{{
+				SlotName:  spellcatalog.SpellCatalogReferenceSlot,
+				MediaType: "application/json",
+				Content:   []byte(content),
+			}},
+		},
+	}}
+}
+
+func overlaySpellCatalogReference() contracts.ReferenceSet {
+	return spellCatalogReference(`{"schema_version":"notarius.dnd.spell-catalog-overlay.v1","catalogs":[{"id":"campaign.example","ruleset":"dnd-5e-2014","source":{"title":"Private campaign source","version":"1","url":"file:///private-source.json","license":"private"},"spells":[{"name":"Aegis of Emberfall","aliases":["Emberfall Aegis"]}]}]}`)
+}
+
 type fakeSpellsLLMClient struct {
 	response extractionResponse
 	content  []byte