Extract shared D&D combat policy

assets/dnd/scene-descriptions/prompts/instructions.md

@@ -5,9 +5,7 @@ into multiple scenes or use facts that are not supported by it.
 Return one kind, one concise title, and one concise summary. Choose exactly one
 kind:
 
-- combat: active combat materially organizes the scene, including
-  initiative-like exchanges or sustained hostile action. Planning a fight or
-  discussing a completed fight is not combat by itself.
+- combat: a scene classified as combat under the shared combat policy.
 - narrative: current-session in-world play that is not principally active
   combat, a prior-session recap, or sustained out-of-character session
   discussion. This includes exploration, travel, dialogue, investigation,
@@ -20,15 +18,13 @@ kind:
   play.
 
 Narrative is the default for actual current-session gameplay that does not meet
-another definition. When the accepted chunk is mixed:
+another definition. When the accepted chunk has no substantive active combat:
 
-1. use combat when active combat is a substantive central activity, even with
-   brief setup, rules clarification, or immediate aftermath;
-2. otherwise use recap when recounting a previous session is the chunk's
+1. use recap when recounting a previous session is the chunk's
    primary table purpose;
-3. otherwise use meta when sustained out-of-character session discussion is
+2. otherwise use meta when sustained out-of-character session discussion is
    primary and in-world progression is no more than incidental; and
-4. use narrative for all remaining current-session in-world play.
+3. use narrative for all remaining current-session in-world play.
 
 Brief table talk, dice resolution, rules clarification, jokes, or
 administrative comments do not make a gameplay scene meta. A short recollection

assets/dnd/scene-descriptions/prompts/prompt.yaml

@@ -27,6 +27,8 @@ messages:
     content_file: ./sharedassets/common-dnd-transcript-chunk.md
     cache_control:
       type: ephemeral
+  - role: user
+    content_file: ./sharedassets/common-dnd-scene-combat-policy.md
   - role: user
     content_file: ./instructions.md
     cache_control:

assets/dnd/shared/prompts/common-dnd-scene-combat-policy.md

@@ -0,0 +1,13 @@
+Use `combat` only when substantive active combat materially organizes the
+scene. Active combat includes initiative or turn exchanges, attacks, combat
+spells, damage, saves, movement, or similarly sustained hostile action.
+
+Do not use `combat` for planning or preparing for a possible fight; threats,
+hostile dialogue, or a tense confrontation; immediate aftermath, looting,
+healing, or discussion of a completed fight; a recap or in-world recollection
+of earlier combat; or out-of-character rules discussion without active
+encounter play.
+
+When a chunk contains substantive active combat alongside brief setup, rules
+clarification, interruption, phase transition, or immediate aftermath, classify
+it as `combat`.

docs/roadmap/implementation.md

@@ -59,6 +59,8 @@ before beginning the next one.
 
 ## Stage 1: Extract The Shared Combat Policy
 
+✅ Complete
+
 ### Goal
 
 Give the existing extractor and future validator one byte-identical owner for

internal/modules/dnd/extract/scenedescriptions/prompt_assets.go

@@ -24,6 +24,7 @@ var promptAssetManifest = shared.PromptAssetManifest{
 		"common-dnd-identity.md",
 		"common-dnd-references.md",
 		"common-dnd-transcript-chunk.md",
+		"common-dnd-scene-combat-policy.md",
 	},
 }
 

internal/modules/dnd/extract/scenedescriptions/prompt_assets_test.go

@@ -42,6 +42,23 @@ func TestRegisterPromptAssetsPreparesSceneDescriptionPrompt(t *testing.T) {
 	if prepared.PromptID != PromptID || prepared.OutputContract.SchemaPath != "dnd_scene_descriptions_llm.v1.json" {
 		t.Fatalf("prepared prompt = %#v, want scene-description prompt identity and schema wiring", prepared)
 	}
+	const combatPolicySentinel = "substantive active combat materially organizes the"
+	transcriptIndex := -1
+	policyIndex := -1
+	instructionsIndex := len(prepared.Messages) - 1
+	policyOccurrences := 0
+	for index, message := range prepared.Messages {
+		if strings.Contains(message.Content, "scene-description-transcript") {
+			transcriptIndex = index
+		}
+		if count := strings.Count(message.Content, combatPolicySentinel); count > 0 {
+			policyIndex = index
+			policyOccurrences += count
+		}
+	}
+	if policyOccurrences != 1 || policyIndex <= transcriptIndex || policyIndex >= instructionsIndex {
+		t.Fatalf("combat policy appeared %d times at message %d; want once after transcript message %d and before instructions message %d", policyOccurrences, policyIndex, transcriptIndex, instructionsIndex)
+	}
 }
 
 func TestPromptMetadataAndDiagnosticsDoNotContainRawAssets(t *testing.T) {

internal/modules/dnd/register/prompt_cache_test.go

@@ -30,6 +30,7 @@ func TestExtractionPromptComposition(t *testing.T) {
 		npcSentinel          = "npc-registry-sentinel"
 		catalogSentinel      = "spell-catalog-sentinel"
 		evidenceSentinel     = "Transcript units are the only evidence"
+		combatPolicySentinel = "substantive active combat materially organizes the"
 	)
 	registry := llm.NewAssetRegistry()
 	if err := registerPromptAssets(registry); err != nil {
@@ -48,6 +49,7 @@ func TestExtractionPromptComposition(t *testing.T) {
 		promptVersion  string
 		inputs         map[string]promptkit.ArtifactRef
 		suffixGroups   [][]string
+		middleSentinel string
 	}{
 		{name: "npcs", promptID: npcextract.PromptID, promptVersion: npcextract.SchemaVersion, inputs: commonInputs, suffixGroups: [][]string{{evidenceSentinel}}},
 		{name: "locations", promptID: locationextract.PromptID, promptVersion: locationextract.SchemaVersion, inputs: commonInputs, suffixGroups: [][]string{{evidenceSentinel}}},
@@ -55,7 +57,7 @@ func TestExtractionPromptComposition(t *testing.T) {
 			"item_registry": promptkit.Inline(`{"items":[{"id":"item-registry-sentinel","name":"Torch"}]}`),
 		}), suffixGroups: [][]string{{evidenceSentinel}, {"item-registry-sentinel"}}},
 		{name: "item registry", promptID: itemregistryextract.PromptID, promptVersion: itemregistryextract.SchemaVersion, inputs: commonInputs, suffixGroups: [][]string{{evidenceSentinel}}},
-		{name: "scene descriptions", promptID: scenedescriptionextract.PromptID, promptVersion: scenedescriptionextract.SchemaVersion, inputs: commonInputs},
+		{name: "scene descriptions", promptID: scenedescriptionextract.PromptID, promptVersion: scenedescriptionextract.SchemaVersion, inputs: commonInputs, middleSentinel: combatPolicySentinel},
 		{
 			name:          "combat turns",
 			promptID:      combatextract.PromptID,
@@ -155,6 +157,12 @@ func TestExtractionPromptComposition(t *testing.T) {
 				previousIndex = groupIndex
 			}
 			instructionIndex := len(prepared.Messages) - 1
+			if testCase.middleSentinel != "" {
+				policyIndex := renderedInputMessageIndex(t, prepared.Messages, testCase.middleSentinel)
+				if policyIndex <= transcriptIndex || policyIndex >= instructionIndex {
+					t.Fatalf("combat policy rendered at message %d, want after transcript message %d and before instructions message %d", policyIndex, transcriptIndex, instructionIndex)
+				}
+			}
 			if instructionIndex <= previousIndex {
 				t.Fatalf("instructions rendered at message %d, want after lane input message %d", instructionIndex, previousIndex)
 			}

internal/modules/dnd/shared/assets.go

@@ -27,6 +27,7 @@ var sharedPromptPaths = map[string]string{
 	"common-dnd-identity.md":            "prompts/common-dnd-identity.md",
 	"common-dnd-transcript-full.md":     "prompts/common-dnd-transcript-full.md",
 	"common-dnd-transcript-chunk.md":    "prompts/common-dnd-transcript-chunk.md",
+	"common-dnd-scene-combat-policy.md": "prompts/common-dnd-scene-combat-policy.md",
 	"common-dnd-references.md":          "prompts/common-dnd-references.md",
 	"common-dnd-npc-registry.md":        "prompts/common-dnd-npc-registry.md",
 }