Expand pre-2024 {@atk} tags to full attack type labels in stat blocks

Old 5etools data uses {@atk mw} instead of {@atkr m}, which the generic
tag handler was reducing to bare "mw" text. Adds dedicated handling for
all {@atk} variants and bumps the bestiary cache version to clear stale
processed data.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

apps/web/src/adapters/__tests__/bestiary-adapter.test.ts

@@ -300,6 +300,44 @@ describe("normalizeBestiary", () => {
 		expect(creatures[0].proficiencyBonus).toBe(6);
 	});
 
+	it("normalizes pre-2024 {@atk mw} tags to full attack type text", () => {
+		const raw = {
+			monster: [
+				{
+					name: "Adult Black Dragon",
+					source: "MM",
+					size: ["H"],
+					type: "dragon",
+					ac: [19],
+					hp: { average: 195, formula: "17d12 + 85" },
+					speed: { walk: 40, fly: 80, swim: 40 },
+					str: 23,
+					dex: 14,
+					con: 21,
+					int: 14,
+					wis: 13,
+					cha: 17,
+					passive: 21,
+					cr: "14",
+					action: [
+						{
+							name: "Bite",
+							entries: [
+								"{@atk mw} {@hit 11} to hit, reach 10 ft., one target. {@h}17 ({@damage 2d10 + 6}) piercing damage plus 4 ({@damage 1d8}) acid damage.",
+							],
+						},
+					],
+				},
+			],
+		};
+
+		const creatures = normalizeBestiary(raw);
+		const bite = creatures[0].actions?.[0];
+		expect(bite?.text).toContain("Melee Weapon Attack:");
+		expect(bite?.text).not.toContain("mw");
+		expect(bite?.text).not.toContain("{@");
+	});
+
 	it("handles fly speed with hover condition", () => {
 		const raw = {
 			monster: [

apps/web/src/adapters/__tests__/strip-tags.test.ts

@@ -50,6 +50,26 @@ describe("stripTags", () => {
 		expect(stripTags("{@atkr m,r}")).toBe("Melee or Ranged Attack Roll:");
 	});
 
+	it("strips {@atk mw} to Melee Weapon Attack:", () => {
+		expect(stripTags("{@atk mw}")).toBe("Melee Weapon Attack:");
+	});
+
+	it("strips {@atk rw} to Ranged Weapon Attack:", () => {
+		expect(stripTags("{@atk rw}")).toBe("Ranged Weapon Attack:");
+	});
+
+	it("strips {@atk ms} to Melee Spell Attack:", () => {
+		expect(stripTags("{@atk ms}")).toBe("Melee Spell Attack:");
+	});
+
+	it("strips {@atk rs} to Ranged Spell Attack:", () => {
+		expect(stripTags("{@atk rs}")).toBe("Ranged Spell Attack:");
+	});
+
+	it("strips {@atk mw,rw} to Melee or Ranged Weapon Attack:", () => {
+		expect(stripTags("{@atk mw,rw}")).toBe("Melee or Ranged Weapon Attack:");
+	});
+
 	it("strips {@recharge 5} to (Recharge 5-6)", () => {
 		expect(stripTags("{@recharge 5}")).toBe("(Recharge 5-6)");
 	});

apps/web/src/adapters/bestiary-cache.ts

@@ -3,7 +3,7 @@ import { type IDBPDatabase, openDB } from "idb";
 
 const DB_NAME = "initiative-bestiary";
 const STORE_NAME = "sources";
-const DB_VERSION = 1;
+const DB_VERSION = 2;
 
 export interface CachedSourceInfo {
 	readonly sourceCode: string;
@@ -32,12 +32,16 @@ async function getDb(): Promise<IDBPDatabase | null> {
 
 	try {
 		db = await openDB(DB_NAME, DB_VERSION, {
-			upgrade(database) {
-				if (!database.objectStoreNames.contains(STORE_NAME)) {
+			upgrade(database, oldVersion, _newVersion, transaction) {
+				if (oldVersion < 1) {
 					database.createObjectStore(STORE_NAME, {
 						keyPath: "sourceCode",
 					});
 				}
+				if (oldVersion < 2 && database.objectStoreNames.contains(STORE_NAME)) {
+					// Clear cached creatures to pick up improved tag processing
+					transaction.objectStore(STORE_NAME).clear();
+				}
 			},
 		});
 		return db;

apps/web/src/adapters/strip-tags.ts

@@ -14,6 +14,15 @@ const ATKR_MAP: Record<string, string> = {
 	"r,m": "Melee or Ranged Attack Roll:",
 };
 
+const ATK_MAP: Record<string, string> = {
+	mw: "Melee Weapon Attack:",
+	rw: "Ranged Weapon Attack:",
+	ms: "Melee Spell Attack:",
+	rs: "Ranged Spell Attack:",
+	"mw,rw": "Melee or Ranged Weapon Attack:",
+	"rw,mw": "Melee or Ranged Weapon Attack:",
+};
+
 /**
  * Strips 5etools {@tag ...} markup from text, converting to plain readable text.
  *
@@ -51,11 +60,16 @@ export function stripTags(text: string): string {
 	// {@hit N} → "+N"
 	result = result.replaceAll(/\{@hit\s+(\d+)\}/g, "+$1");
 
-	// {@atkr type} → mapped attack roll text
+	// {@atkr type} → mapped attack roll text (2024 rules)
 	result = result.replaceAll(/\{@atkr\s+([^}]+)\}/g, (_, type: string) => {
 		return ATKR_MAP[type.trim()] ?? "Attack Roll:";
 	});
 
+	// {@atk type} → mapped attack type text (pre-2024 data)
+	result = result.replaceAll(/\{@atk\s+([^}]+)\}/g, (_, type: string) => {
+		return ATK_MAP[type.trim()] ?? "Attack:";
+	});
+
 	// {@actSave ability} → "Ability saving throw"
 	result = result.replaceAll(
 		/\{@actSave\s+([^}]+)\}/g,