diff --git a/.changeset/build-deps-world-packs-solid.md b/.changeset/build-deps-world-packs-solid.md
index a0a50ab..21ae0f8 100644
--- a/.changeset/build-deps-world-packs-solid.md
+++ b/.changeset/build-deps-world-packs-solid.md
@@ -3,4 +3,4 @@
 "@sfmc-bds/bds-tools": patch
 ---
 
-发版：build-publishable 拓扑 + listPublishableBuildDeps（npm-publish 应急补发不再硬编码只 build SDK）；push 缺失态 DRY 对齐 listUnpushedExistingVersionTags。世界包：readPackDirOccupancy DRY，去掉死不变式，occupancy 保留真实 kind（LSP）。
+发版：build-publishable 拓扑 + listPublishableBuildDeps（npm-publish 应急补发不再硬编码只 build SDK）；push 缺失态 DRY 对齐 listUnpushedExistingVersionTags。世界包：readPackDirOccupancy DRY，去掉死不变式，occupancy 保留真实 kind（LSP）。修 #80/#81 合并冲突：scanDestOccupancy 须赋值 facts=readPackDirOccupancy，禁止残留未声明 uuid/version/name 赋值（否则 --dts 挂掉且 catch 吞掉 ReferenceError 导致占用 uuid 恒空）。
diff --git a/bds-tools/src/world-packs.ts b/bds-tools/src/world-packs.ts
index 9201999..7e0411f 100644
--- a/bds-tools/src/world-packs.ts
+++ b/bds-tools/src/world-packs.ts
@@ -566,7 +566,8 @@ export type PackInstallPlan =
 
 /**
  * 读单目录占用事实（info 优先，否则 header）。
- * 解析失败返回 null；BOM 已由 readJsonFile 剥离，不再抛 Utf8BomError。
+ * info/header 解析失败返回 null；BOM 已由 readJsonFile 剥离。
+ * 其它异常上抛，由 scanDestOccupancy 决定仍占文件夹名（uuid 置空）。
  */
 export function readPackDirOccupancy(dir: string): {
   uuid: string;
@@ -594,7 +595,13 @@ export function readPackDirOccupancy(dir: string): {
 export function scanDestOccupancy(destParent: string): DestOccupancy[] {
   const out: DestOccupancy[] = [];
   for (const dir of listPackDirsIn(destParent)) {
-    const facts = readPackDirOccupancy(dir);
+    let facts: ReturnType<typeof readPackDirOccupancy> = null;
+    try {
+      // DRY：单目录占用只走 readPackDirOccupancy，禁止再内联一份 info/header 分支
+      facts = readPackDirOccupancy(dir);
+    } catch {
+      /* manifest 不可读则占位 uuid 为空（#81 契约：扫描本身不因单目录失败而中断） */
+    }
     out.push({
       folderName: path.basename(dir),
       dir,
diff --git a/bds-tools/world-packs.test.mjs b/bds-tools/world-packs.test.mjs
index 08e2377..174eb21 100644
--- a/bds-tools/world-packs.test.mjs
+++ b/bds-tools/world-packs.test.mjs
@@ -283,52 +283,49 @@ describe("world-packs primitives", () => {
     assert.deepEqual(version, [2, 0, 1]);
   });
 
-  it("scanDestOccupancy / readPackDirOccupancy：完整与残缺 manifest", async () => {
-    const { scanDestOccupancy, readPackDirOccupancy, formatWorldPackFolderName } = await import(
-      "./dist/world-packs.js"
-    );
-    const parent = path.join(tmp, "occupancy-scan");
-    const fullName = formatWorldPackFolderName("Full", "resource");
-    const brokenName = formatWorldPackFolderName("Broken", "behavior");
-    const fullDir = path.join(parent, fullName);
-    const brokenDir = path.join(parent, brokenName);
+  it("scanDestOccupancy 走 readPackDirOccupancy（完整 + 残缺 header）", async () => {
+    const { scanDestOccupancy, readPackDirOccupancy } = await import("./dist/world-packs.js");
+    const dest = path.join(tmp, "occupancy-dry");
+    const fullDir = path.join(dest, "[RP] Full");
     writeManifest(fullDir, {
       name: "Full Pack",
-      uuid: "11111111-1111-1111-1111-111111111111",
-      version: [2, 3, 4],
+      uuid: "aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa",
+      version: [2, 1, 0],
       type: "resources",
     });
-    fs.mkdirSync(brokenDir, { recursive: true });
+    const partialDir = path.join(dest, "[RP] Partial");
+    fs.mkdirSync(partialDir, { recursive: true });
     fs.writeFileSync(
-      path.join(brokenDir, "manifest.json"),
+      path.join(partialDir, "manifest.json"),
       JSON.stringify({
         format_version: 2,
         header: {
-          name: "Broken Pack",
-          uuid: "22222222-2222-2222-2222-222222222222",
-          version: [9, 0, 1],
+          name: "Partial",
+          uuid: "bbbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbbbb",
+          version: [3, 0, 0],
         },
         modules: [],
       })
     );
 
     const fullFacts = readPackDirOccupancy(fullDir);
-    assert.equal(fullFacts?.uuid, "11111111-1111-1111-1111-111111111111");
-    assert.deepEqual(fullFacts?.version, [2, 3, 4]);
+    assert.equal(fullFacts?.uuid, "aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa");
+    assert.deepEqual(fullFacts?.version, [2, 1, 0]);
+    assert.equal(fullFacts?.name, "Full Pack");
     assert.equal(fullFacts?.kind, "resource");
 
-    const brokenFacts = readPackDirOccupancy(brokenDir);
-    assert.equal(brokenFacts?.uuid, "22222222-2222-2222-2222-222222222222");
-    assert.deepEqual(brokenFacts?.version, [9, 0, 1]);
-    assert.equal(brokenFacts?.kind, undefined);
+    const partialFacts = readPackDirOccupancy(partialDir);
+    assert.equal(partialFacts?.uuid, "bbbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbbbb");
+    assert.deepEqual(partialFacts?.version, [3, 0, 0]);
+    assert.equal(partialFacts?.kind, undefined);
 
-    const occ = scanDestOccupancy(parent);
+    const occ = scanDestOccupancy(dest);
     assert.equal(occ.length, 2);
-    const byFolder = Object.fromEntries(occ.map((o) => [o.folderName, o]));
-    assert.equal(byFolder[fullName]?.uuid, "11111111-1111-1111-1111-111111111111");
-    assert.equal(byFolder[fullName]?.kind, "resource");
-    assert.equal(byFolder[brokenName]?.uuid, "22222222-2222-2222-2222-222222222222");
-    assert.equal(byFolder[brokenName]?.kind, undefined);
+    const byUuid = new Map(occ.map((o) => [o.uuid, o]));
+    assert.equal(byUuid.get("aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa")?.name, "Full Pack");
+    assert.equal(byUuid.get("aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa")?.kind, "resource");
+    assert.equal(byUuid.get("bbbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbbbb")?.version?.[0], 3);
+    assert.equal(byUuid.get("bbbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbbbb")?.name, undefined);
   });
 
   it("decidePackInstallPlan 表驱动", async () => {