diff --git a/resources/tester/helper_261_3_detail_pick.cjs b/resources/tester/helper_261_3_detail_pick.cjs
index 8ef57da1e..4d5b1cab1 100644
--- a/resources/tester/helper_261_3_detail_pick.cjs
+++ b/resources/tester/helper_261_3_detail_pick.cjs
@@ -5,7 +5,7 @@
  */
 const fs = require("fs");
 const path = require("path");
-const ts = require(path.join(__dirname, "..", "..", "config", "node_modules", "typescript"));
+const { makeLoader } = require("./helper_ts_stub_loader.cjs");
 
 const ROOT = path.join(__dirname, "..", "..");
 const B06 = path.join(ROOT, "B06_Section");
@@ -19,21 +19,17 @@ const STUBS = {
   "./B06_Section_UI_Section_Common": { CROSS_PAD },
 };
 const resolve = (base) => (fs.existsSync(`${base}.ts`) ? `${base}.ts` : base);
-function loadTs(full) {
-  const js = ts.transpileModule(fs.readFileSync(full, "utf8"), {
-    compilerOptions: { module: ts.ModuleKind.CommonJS, target: ts.ScriptTarget.ES2020 },
-  }).outputText;
-  const box = { exports: {} };
-  const localRequire = (request) => {
+const { loadTs } = makeLoader({
+  root: ROOT,
+  cache: false,
+  requireFor: (full) => (request) => {
     if (STUBS[request]) return STUBS[request];
     if (request.endsWith(".css")) return {};
     if (request.startsWith("@util/"))
       return loadTs(resolve(path.join(ROOT, "common_util", request.slice(6))));
     return loadTs(resolve(path.join(path.dirname(full), request)));
-  };
-  new Function("exports", "module", "require", js)(box.exports, box, localRequire);
-  return box.exports;
-}
+  },
+});
 const G = loadTs(path.join(B06, "logic/B06_Section_UI_Cross_Detail_Geom.ts"));
 const S = loadTs(path.join(B06, "B06_Section_UI_Cross_Detail_Select.ts"));
 
diff --git a/resources/tester/helper_266_detail_home.cjs b/resources/tester/helper_266_detail_home.cjs
index 2492ddfdb..7335fff9c 100644
--- a/resources/tester/helper_266_detail_home.cjs
+++ b/resources/tester/helper_266_detail_home.cjs
@@ -5,7 +5,7 @@
  */
 const fs = require("fs");
 const path = require("path");
-const ts = require(path.join(__dirname, "..", "..", "config", "node_modules", "typescript"));
+const { makeLoader } = require("./helper_ts_stub_loader.cjs");
 
 const ROOT = path.join(__dirname, "..", "..");
 const B06 = path.join(ROOT, "B06_Section");
@@ -19,15 +19,11 @@ const STUBS = {
     validElevation: (s) => s.valid !== false && Number.isFinite(s.elevation_m),
   },
 };
-function loadTs(full) {
-  const js = ts.transpileModule(fs.readFileSync(full, "utf8"), {
-    compilerOptions: { module: ts.ModuleKind.CommonJS, target: ts.ScriptTarget.ES2020 },
-  }).outputText;
-  const box = { exports: {} };
-  const localRequire = (request) => STUBS[request] ?? {};
-  new Function("exports", "module", "require", js)(box.exports, box, localRequire);
-  return box.exports;
-}
+const { loadTs } = makeLoader({
+  root: ROOT,
+  cache: false,
+  requireFor: (full) => (request) => STUBS[request] ?? {},
+});
 // 휠 방향과 무관한 시험(처음으로 · 범위) — 337 기본 밂 뒤에도 당김 수치 그대로(pull 박음)
 globalThis.localStorage = {
   getItem: (k) => (k === "aislo:pref:input-prefs" ? '{"wheelZoom":"pull"}' : null),
diff --git a/resources/tester/helper_270_1_cross_map.cjs b/resources/tester/helper_270_1_cross_map.cjs
index f8814f58d..d835968b4 100644
--- a/resources/tester/helper_270_1_cross_map.cjs
+++ b/resources/tester/helper_270_1_cross_map.cjs
@@ -6,19 +6,17 @@ const fs = require("fs");
 const path = require("path");
 const ROOT = path.join(__dirname, "..", "..");
 const NM = path.join(ROOT, "config", "node_modules");
-const ts = require(path.join(NM, "typescript"));
+const { makeLoader } = require("./helper_ts_stub_loader.cjs");
 
 function loadTs(file, stubs = {}) {
-  const js = ts.transpileModule(fs.readFileSync(path.join(ROOT, file), "utf8"), {
-    compilerOptions: { module: ts.ModuleKind.CommonJS, target: ts.ScriptTarget.ES2020 },
-  }).outputText;
-  const box = { exports: {} };
-  const localRequire = (request) => {
-    if (stubs[request]) return stubs[request];
-    throw new Error(`stub 없음: ${request}`);
-  };
-  new Function("exports", "module", "require", js)(box.exports, box, localRequire);
-  return box.exports;
+  return makeLoader({
+    root: ROOT,
+    cache: false,
+    requireFor: (full) => (request) => {
+      if (stubs[request]) return stubs[request];
+      throw new Error(`stub 없음: ${request}`);
+    },
+  }).loadTs(path.join(ROOT, file));
 }
 
 globalThis.window = { addEventListener() {}, removeEventListener() {} };
diff --git a/resources/tester/helper_271_detail_notify.cjs b/resources/tester/helper_271_detail_notify.cjs
index 53a1174b2..d84bc67eb 100644
--- a/resources/tester/helper_271_detail_notify.cjs
+++ b/resources/tester/helper_271_detail_notify.cjs
@@ -7,7 +7,7 @@
 const fs = require("fs");
 const path = require("path");
 const ROOT = path.join(__dirname, "..", "..");
-const ts = require(path.join(ROOT, "config", "node_modules", "typescript"));
+const { makeLoader } = require("./helper_ts_stub_loader.cjs");
 const CATALOG = require(path.join(__dirname, "helper_322_catalog_module.cjs"));
 
 const P = "P463";
@@ -140,35 +140,23 @@ const STUBS = {
   "design_save.ts": { savingDesign: () => false },
 };
 
-const cache = new Map();
 const resolve = (base) =>
   [base, `${base}.ts`, path.join(base, "index.ts")].find(
     (p) => fs.existsSync(p) && fs.statSync(p).isFile(),
   ) ?? `${base}.ts`;
-function loadTs(full) {
-  const stub = STUBS[path.basename(full)];
-  if (stub) return stub;
-  if (cache.has(full)) return cache.get(full);
-  const js = ts.transpileModule(fs.readFileSync(full, "utf8"), {
-    compilerOptions: {
-      module: ts.ModuleKind.CommonJS,
-      target: ts.ScriptTarget.ES2020,
-      esModuleInterop: true,
-    },
-  }).outputText;
-  const box = { exports: {} };
-  cache.set(full, box.exports);
-  const near = (request) => {
+const { loadTs } = makeLoader({
+  root: ROOT,
+  interop: true,
+  fileStub: (full) => STUBS[path.basename(full)],
+  requireFor: (full) => (request) => {
     if (CATALOG.isCatalogRequest(request)) return CATALOG;
     const alias = { "@util/": "common_util", "@ui/": "ui_template", "@config/": "config" };
     for (const [prefix, dir] of Object.entries(alias))
       if (request.startsWith(prefix))
         return loadTs(resolve(path.join(ROOT, dir, request.slice(prefix.length))));
     return loadTs(resolve(path.join(path.dirname(full), request)));
-  };
-  new Function("exports", "module", "require", js)(box.exports, box, near);
-  return box.exports;
-}
+  },
+});
 
 const store = loadTs(path.join(ROOT, "B06_Section", "B06_Section_Section_Store.ts"));
 const missing = loadTs(path.join(ROOT, "B06_Section", "B06_Section_UI_Missing_Stations.ts"));
diff --git a/resources/tester/helper_271_facility_lane.cjs b/resources/tester/helper_271_facility_lane.cjs
index d50a92687..6e33e51a8 100644
--- a/resources/tester/helper_271_facility_lane.cjs
+++ b/resources/tester/helper_271_facility_lane.cjs
@@ -5,7 +5,7 @@
 const fs = require("fs");
 const path = require("path");
 const ROOT = path.join(__dirname, "..", "..");
-const ts = require(path.join(ROOT, "config", "node_modules", "typescript"));
+const { makeLoader } = require("./helper_ts_stub_loader.cjs");
 const CATALOG = require(path.join(__dirname, "helper_322_catalog_module.cjs"));
 
 function memoryStorage() {
@@ -39,25 +39,15 @@ const STUBS = {
   "B06_Section_UI_Page_Persist.ts": anyModule({ bermSpansFromStructures: () => [] }),
 };
 
-const cache = new Map();
 const resolve = (base) =>
   [base, `${base}.ts`, path.join(base, "index.ts")].find(
     (p) => fs.existsSync(p) && fs.statSync(p).isFile(),
   ) ?? `${base}.ts`;
-function loadTs(full) {
-  const stub = STUBS[path.basename(full)];
-  if (stub) return stub;
-  if (cache.has(full)) return cache.get(full);
-  const js = ts.transpileModule(fs.readFileSync(full, "utf8"), {
-    compilerOptions: {
-      module: ts.ModuleKind.CommonJS,
-      target: ts.ScriptTarget.ES2020,
-      esModuleInterop: true,
-    },
-  }).outputText;
-  const box = { exports: {} };
-  cache.set(full, box.exports);
-  const near = (request) => {
+const { loadTs } = makeLoader({
+  root: ROOT,
+  interop: true,
+  fileStub: (full) => STUBS[path.basename(full)],
+  requireFor: (full) => (request) => {
     if (CATALOG.isCatalogRequest(request)) return CATALOG;
     if (request.endsWith(".json"))
       return JSON.parse(fs.readFileSync(path.join(path.dirname(full), request), "utf8"));
@@ -66,10 +56,8 @@ function loadTs(full) {
       if (request.startsWith(prefix))
         return loadTs(resolve(path.join(ROOT, dir, request.slice(prefix.length))));
     return loadTs(resolve(path.join(path.dirname(full), request)));
-  };
-  new Function("exports", "module", "require", js)(box.exports, box, near);
-  return box.exports;
-}
+  },
+});
 
 const design = path.join(ROOT, "A00_Common", "design");
 const { createFacilityLane } = loadTs(path.join(design, "design_facility_lane.ts"));
diff --git a/resources/tester/helper_271_straighten_pick.cjs b/resources/tester/helper_271_straighten_pick.cjs
index f2e0572a5..8b610ac8b 100644
--- a/resources/tester/helper_271_straighten_pick.cjs
+++ b/resources/tester/helper_271_straighten_pick.cjs
@@ -4,28 +4,19 @@
  */
 const fs = require("fs");
 const path = require("path");
-const ts = require(path.join(__dirname, "..", "..", "config", "node_modules", "typescript"));
+const { makeLoader } = require("./helper_ts_stub_loader.cjs");
 
 const ROOT = path.join(__dirname, "..", "..");
 // 화면 틀 파일(@ui 별칭)은 Node 가 못 읽음 — 도구줄 그림만 쓰므로 빈 그림으로 갈음
 const STUBS = { "./B05_Profile_UI_RouteEdit_Chrome": { HISTORY_ICON: { undo: "", redo: "" } } };
-const cache = new Map();
-function loadTs(file) {
-  const full = path.resolve(file);
-  if (cache.has(full)) return cache.get(full);
-  const js = ts.transpileModule(fs.readFileSync(full, "utf8"), {
-    compilerOptions: { module: ts.ModuleKind.CommonJS, target: ts.ScriptTarget.ES2020 },
-  }).outputText;
-  const box = { exports: {} };
-  cache.set(full, box.exports);
-  const near = (request) => {
+const { loadTs } = makeLoader({
+  root: ROOT,
+  requireFor: (full) => (request) => {
     if (STUBS[request]) return STUBS[request];
     if (request.startsWith(".")) return loadTs(path.join(path.dirname(full), `${request}.ts`));
     return require(request);
-  };
-  new Function("exports", "module", "require", js)(box.exports, box, near);
-  return box.exports;
-}
+  },
+});
 
 const LOGIC = path.join(ROOT, "B05_Profile", "logic");
 const align = loadTs(path.join(LOGIC, "B05_Profile_UI_Profile_Alignment.ts"));
diff --git a/resources/tester/helper_272_1_station_list.cjs b/resources/tester/helper_272_1_station_list.cjs
index 11aa038b2..df883a640 100644
--- a/resources/tester/helper_272_1_station_list.cjs
+++ b/resources/tester/helper_272_1_station_list.cjs
@@ -3,22 +3,20 @@
  */
 const fs = require("fs");
 const path = require("path");
-const ts = require(path.join(__dirname, "..", "..", "config", "node_modules", "typescript"));
+const { makeLoader } = require("./helper_ts_stub_loader.cjs");
 const CATALOG = require("./helper_322_catalog_module.cjs"); // 구조물 표(322-1)
 
 const ROOT = path.join(__dirname, "..", "..");
 
 function loadTs(file) {
-  const js = ts.transpileModule(fs.readFileSync(path.join(ROOT, file), "utf8"), {
-    compilerOptions: { module: ts.ModuleKind.CommonJS, target: ts.ScriptTarget.ES2020 },
-  }).outputText;
-  const box = { exports: {} };
-  const localRequire = (request) => {
-    if (CATALOG.isCatalogRequest(request)) return CATALOG;
-    throw new Error(`stub 없음: ${request} (${file})`);
-  };
-  new Function("exports", "module", "require", js)(box.exports, box, localRequire);
-  return box.exports;
+  return makeLoader({
+    root: ROOT,
+    cache: false,
+    requireFor: (full) => (request) => {
+      if (CATALOG.isCatalogRequest(request)) return CATALOG;
+      throw new Error(`stub 없음: ${request} (${file})`);
+    },
+  }).loadTs(path.join(ROOT, file));
 }
 
 const input = JSON.parse(fs.readFileSync(process.argv[2], "utf8"));
diff --git a/resources/tester/helper_273_2_preview_stations.cjs b/resources/tester/helper_273_2_preview_stations.cjs
index 00589f01a..8dbe4da29 100644
--- a/resources/tester/helper_273_2_preview_stations.cjs
+++ b/resources/tester/helper_273_2_preview_stations.cjs
@@ -3,22 +3,23 @@
  */
 const fs = require("fs");
 const path = require("path");
-const ts = require(path.join(__dirname, "..", "..", "config", "node_modules", "typescript"));
+const { makeLoader } = require("./helper_ts_stub_loader.cjs");
 const CATALOG = require("./helper_322_catalog_module.cjs"); // 구조물 표(322-1)
 
 const ROOT = path.join(__dirname, "..", "..");
 
 function loadTs(file, stubs = {}) {
-  const js = ts.transpileModule(fs.readFileSync(path.join(ROOT, file), "utf8"), {
-    compilerOptions: { module: ts.ModuleKind.CommonJS, target: ts.ScriptTarget.ES2020 },
-  }).outputText;
-  const box = { exports: {} };
-  new Function("exports", "module", "require", js)(box.exports, box, (name) => {
-    if (CATALOG.isCatalogRequest(name)) return CATALOG;
-    if (!stubs[name]) throw new Error(`stub 없음: ${name} (${file})`);
-    return stubs[name];
-  });
-  return box.exports;
+  return makeLoader({
+    root: ROOT,
+    cache: false,
+    requireFor: (full) => {
+      return (name) => {
+        if (CATALOG.isCatalogRequest(name)) return CATALOG;
+        if (!stubs[name]) throw new Error(`stub 없음: ${name} (${file})`);
+        return stubs[name];
+      };
+    },
+  }).loadTs(path.join(ROOT, file));
 }
 
 const station = loadTs("common_util/common_util_structure_station.ts");
diff --git a/resources/tester/helper_280_1_combo_pick.cjs b/resources/tester/helper_280_1_combo_pick.cjs
index af16257b4..9b4ffd3f9 100644
--- a/resources/tester/helper_280_1_combo_pick.cjs
+++ b/resources/tester/helper_280_1_combo_pick.cjs
@@ -5,7 +5,7 @@
  */
 const fs = require("fs");
 const path = require("path");
-const ts = require(path.join(__dirname, "..", "..", "config", "node_modules", "typescript"));
+const { makeLoader } = require("./helper_ts_stub_loader.cjs");
 
 const ROOT = path.join(__dirname, "..", "..");
 const UI = path.join(ROOT, "ui_template");
@@ -143,24 +143,14 @@ const STUBS = {
   },
 };
 
-const cache = new Map();
-function loadTs(file) {
-  const full = path.resolve(file);
-  if (cache.has(full)) return cache.get(full);
-  const js = ts.transpileModule(fs.readFileSync(full, "utf8"), {
-    compilerOptions: { module: ts.ModuleKind.CommonJS, target: ts.ScriptTarget.ES2020 },
-  }).outputText;
-  const box = { exports: {} };
-  cache.set(full, box.exports);
-  const localRequire = (request) => {
+const { loadTs } = makeLoader({
+  root: ROOT,
+  requireFor: (full) => (request) => {
     if (request in STUBS) return STUBS[request];
     if (request.startsWith(".")) return loadTs(`${path.resolve(path.dirname(full), request)}.ts`);
     return require(request);
-  };
-  new Function("exports", "module", "require", js)(box.exports, box, localRequire);
-  cache.set(full, box.exports);
-  return box.exports;
-}
+  },
+});
 
 const item = (key, 열, 경로) => ({ key, 열, 경로 });
 const GROUPS = [
diff --git a/resources/tester/helper_280_3_route_undo_facilities.cjs b/resources/tester/helper_280_3_route_undo_facilities.cjs
index a92db1a09..74fc8bb1c 100644
--- a/resources/tester/helper_280_3_route_undo_facilities.cjs
+++ b/resources/tester/helper_280_3_route_undo_facilities.cjs
@@ -5,7 +5,7 @@
  * 결과 = 표준출력 JSON. 짝 = `test_280_3_route_undo_facilities.py`. */
 const fs = require("fs");
 const path = require("path");
-const ts = require(path.join(__dirname, "..", "..", "config", "node_modules", "typescript"));
+const { makeLoader } = require("./helper_ts_stub_loader.cjs");
 const CATALOG = require("./helper_322_catalog_module.cjs");
 
 const ROOT = path.join(__dirname, "..", "..");
@@ -52,14 +52,9 @@ globalThis.fetch = (url, init) =>
 
 const STUBS = {};
 const cache = new Map();
-function loadTs(full) {
-  if (cache.has(full)) return cache.get(full);
-  const js = ts.transpileModule(fs.readFileSync(full, "utf8"), {
-    compilerOptions: { module: ts.ModuleKind.CommonJS, target: ts.ScriptTarget.ES2020 },
-  }).outputText;
-  const box = { exports: {} };
-  cache.set(full, box.exports);
-  const localRequire = (request) => {
+const { load, loadTs } = makeLoader({
+  root: ROOT,
+  requireFor: (full) => (request) => {
     if (CATALOG.isCatalogRequest(request)) return CATALOG;
     const key = Object.keys(STUBS).find((name) => request.endsWith(name));
     if (key) return STUBS[key];
@@ -71,11 +66,8 @@ function loadTs(full) {
       return loadTs(path.join(ROOT, "common_util", `${request.slice(6)}.ts`));
     if (request.startsWith(".")) return loadTs(path.join(path.dirname(full), `${request}.ts`));
     return require(request);
-  };
-  new Function("exports", "module", "require", js)(box.exports, box, localRequire);
-  return box.exports;
-}
-const load = (...parts) => loadTs(path.join(ROOT, ...parts));
+  },
+});
 
 const sampler = load("common_util", "common_util_surface_sampler.ts");
 const bytes = fs.readFileSync(process.argv[3]);
diff --git a/resources/tester/helper_280_4_fit.cjs b/resources/tester/helper_280_4_fit.cjs
index c5acd1a52..d0df2862e 100644
--- a/resources/tester/helper_280_4_fit.cjs
+++ b/resources/tester/helper_280_4_fit.cjs
@@ -3,27 +3,17 @@
  */
 const fs = require("fs");
 const path = require("path");
-const ts = require(path.join(__dirname, "..", "..", "config", "node_modules", "typescript"));
+const { makeLoader } = require("./helper_ts_stub_loader.cjs");
 
 const ROOT = path.join(__dirname, "..", "..");
-const cache = new Map();
 
-function loadTs(file) {
-  const full = path.resolve(file);
-  if (cache.has(full)) return cache.get(full);
-  const js = ts.transpileModule(fs.readFileSync(full, "utf8"), {
-    compilerOptions: { module: ts.ModuleKind.CommonJS, target: ts.ScriptTarget.ES2020 },
-  }).outputText;
-  const box = { exports: {} };
-  cache.set(full, box.exports);
-  const localRequire = (request) =>
+const { loadTs } = makeLoader({
+  root: ROOT,
+  requireFor: (full) => (request) =>
     request.startsWith(".")
       ? loadTs(path.join(path.dirname(full), `${request}.ts`))
-      : require(request);
-  new Function("exports", "module", "require", js)(box.exports, box, localRequire);
-  cache.set(full, box.exports);
-  return box.exports;
-}
+      : require(request),
+});
 
 const LOGIC = path.join(ROOT, "B05_Profile", "logic");
 const fit = loadTs(path.join(LOGIC, "B05_Profile_RouteEdit_StationFit.ts"));
diff --git a/resources/tester/helper_280_4_stations.cjs b/resources/tester/helper_280_4_stations.cjs
index fa2d44782..b2c9991ca 100644
--- a/resources/tester/helper_280_4_stations.cjs
+++ b/resources/tester/helper_280_4_stations.cjs
@@ -3,26 +3,13 @@
  * 짝 = `test_280_4_stations.py`. */
 const fs = require("fs");
 const path = require("path");
-const ts = require(path.join(__dirname, "..", "..", "config", "node_modules", "typescript"));
+const { makeLoader } = require("./helper_ts_stub_loader.cjs");
 const CATALOG = require("./helper_322_catalog_module.cjs");
 
 const ROOT = path.join(__dirname, "..", "..");
-const cache = new Map();
-function loadTs(full) {
-  if (cache.has(full)) return cache.get(full);
-  const js = ts.transpileModule(fs.readFileSync(full, "utf8"), {
-    compilerOptions: { module: ts.ModuleKind.CommonJS, target: ts.ScriptTarget.ES2020 },
-  }).outputText;
-  const box = { exports: {} };
-  cache.set(full, box.exports);
-  const localRequire = (request) => {
-    if (CATALOG.isCatalogRequest(request)) return CATALOG;
-    if (request.startsWith(".")) return loadTs(path.join(path.dirname(full), `${request}.ts`));
-    return require(request);
-  };
-  new Function("exports", "module", "require", js)(box.exports, box, localRequire);
-  return box.exports;
-}
+const { loadTs } = makeLoader({
+  root: ROOT,
+});
 
 const logic = loadTs(path.join(ROOT, "B05_Profile", "logic", "B05_Profile_Sections_Stations.ts"));
 const station = loadTs(path.join(ROOT, "common_util", "common_util_structure_station.ts"));
diff --git a/resources/tester/helper_280_5_b07_settings.cjs b/resources/tester/helper_280_5_b07_settings.cjs
index be4ebe47d..dc3a440fa 100644
--- a/resources/tester/helper_280_5_b07_settings.cjs
+++ b/resources/tester/helper_280_5_b07_settings.cjs
@@ -5,13 +5,12 @@
  */
 const fs = require("fs");
 const path = require("path");
-const ts = require(path.join(__dirname, "..", "..", "config", "node_modules", "typescript"));
+const { makeLoader } = require("./helper_ts_stub_loader.cjs");
 const CATALOG = require("./helper_322_catalog_module.cjs"); // 구조물 표(322-1)
 
 const ROOT = path.join(__dirname, "..", "..");
 const B07 = path.join(ROOT, "B07_DesignDetail");
 const UI = path.join(ROOT, "ui_template");
-const cache = new Map();
 
 class FakeNode {
   constructor(tag) {
@@ -190,15 +189,9 @@ const STUBS = {
   },
 };
 
-function loadTs(file) {
-  const full = path.resolve(file);
-  if (cache.has(full)) return cache.get(full);
-  const js = ts.transpileModule(fs.readFileSync(full, "utf8"), {
-    compilerOptions: { module: ts.ModuleKind.CommonJS, target: ts.ScriptTarget.ES2020 },
-  }).outputText;
-  const box = { exports: {} };
-  cache.set(full, box.exports);
-  const localRequire = (request) => {
+const { loadTs } = makeLoader({
+  root: ROOT,
+  requireFor: (full) => (request) => {
     if (CATALOG.isCatalogRequest(request)) return CATALOG;
     if (STUBS[request]) return STUBS[request];
     if (request === "@ui/ui_template_collapsible")
@@ -208,11 +201,8 @@ function loadTs(file) {
       return fs.existsSync(target) ? loadTs(target) : {};
     }
     return {};
-  };
-  new Function("exports", "module", "require", js)(box.exports, box, localRequire);
-  cache.set(full, box.exports);
-  return box.exports;
-}
+  },
+});
 
 const { buildDrawingSidePanel } = loadTs(path.join(B07, "B07_DesignDetail_UI_Panels.ts"));
 const { attachCollapsible } = loadTs(path.join(UI, "ui_template_collapsible.ts"));
diff --git a/resources/tester/helper_281_1_drainage_zoom_range.cjs b/resources/tester/helper_281_1_drainage_zoom_range.cjs
index 8d066aab7..3f1007d5f 100644
--- a/resources/tester/helper_281_1_drainage_zoom_range.cjs
+++ b/resources/tester/helper_281_1_drainage_zoom_range.cjs
@@ -4,29 +4,19 @@
  */
 const fs = require("fs");
 const path = require("path");
-const ts = require(path.join(__dirname, "..", "..", "config", "node_modules", "typescript"));
+const { makeLoader } = require("./helper_ts_stub_loader.cjs");
 
 const ROOT = path.join(__dirname, "..", "..");
-const cache = new Map();
 
 /** TS 한 장을 CommonJS 로 옮겨 실행한다. `@ui/` 는 색 함수만 쓰므로 빈 값으로 갈음한다. */
-function loadTs(file) {
-  const full = path.resolve(file);
-  if (cache.has(full)) return cache.get(full);
-  const js = ts.transpileModule(fs.readFileSync(full, "utf8"), {
-    compilerOptions: { module: ts.ModuleKind.CommonJS, target: ts.ScriptTarget.ES2020 },
-  }).outputText;
-  const box = { exports: {} };
-  cache.set(full, box.exports);
-  const localRequire = (request) => {
+const { loadTs } = makeLoader({
+  root: ROOT,
+  requireFor: (full) => (request) => {
     if (request.startsWith(".")) return loadTs(path.join(path.dirname(full), `${request}.ts`));
     if (request.startsWith("@ui/")) return { themeColor: () => "" };
     return require(request);
-  };
-  new Function("exports", "module", "require", js)(box.exports, box, localRequire);
-  cache.set(full, box.exports);
-  return box.exports;
-}
+  },
+});
 
 const zoom = loadTs(path.join(ROOT, "B05_Profile", "B05_Profile_UI_Drainage_ZoomRange.ts"));
 const render = loadTs(path.join(ROOT, "B04_PreProcess", "B04_PreProcess_UI_MapRender.ts"));
diff --git a/resources/tester/helper_283_route_reset_confirm.cjs b/resources/tester/helper_283_route_reset_confirm.cjs
index 44629461d..a71e3ff41 100644
--- a/resources/tester/helper_283_route_reset_confirm.cjs
+++ b/resources/tester/helper_283_route_reset_confirm.cjs
@@ -4,21 +4,19 @@
  */
 const fs = require("fs");
 const path = require("path");
-const ts = require(path.join(__dirname, "..", "..", "config", "node_modules", "typescript"));
+const { makeLoader } = require("./helper_ts_stub_loader.cjs");
 
 const ROOT = path.join(__dirname, "..", "..");
 
 function loadTs(file, stubs = {}) {
-  const js = ts.transpileModule(fs.readFileSync(path.join(ROOT, file), "utf8"), {
-    compilerOptions: { module: ts.ModuleKind.CommonJS, target: ts.ScriptTarget.ES2020 },
-  }).outputText;
-  const box = { exports: {} };
-  const localRequire = (request) => {
-    if (stubs[request]) return stubs[request];
-    throw new Error(`stub 없음: ${request} (${file})`);
-  };
-  new Function("exports", "module", "require", js)(box.exports, box, localRequire);
-  return box.exports;
+  return makeLoader({
+    root: ROOT,
+    cache: false,
+    requireFor: (full) => (request) => {
+      if (stubs[request]) return stubs[request];
+      throw new Error(`stub 없음: ${request} (${file})`);
+    },
+  }).loadTs(path.join(ROOT, file));
 }
 
 const reset = loadTs("B05_Profile/logic/B05_Profile_Route_Reset.ts");
diff --git a/resources/tester/helper_284_1_pill_pick.cjs b/resources/tester/helper_284_1_pill_pick.cjs
index 0bf09a76f..f2bcbb35a 100644
--- a/resources/tester/helper_284_1_pill_pick.cjs
+++ b/resources/tester/helper_284_1_pill_pick.cjs
@@ -4,23 +4,21 @@
  */
 const fs = require("fs");
 const path = require("path");
-const ts = require(path.join(__dirname, "..", "..", "config", "node_modules", "typescript"));
+const { makeLoader } = require("./helper_ts_stub_loader.cjs");
 const CATALOG = require("./helper_322_catalog_module.cjs"); // 구조물 표(322-1)
 
 const ROOT = path.join(__dirname, "..", "..");
 
 function loadTs(file, stubs = {}) {
-  const js = ts.transpileModule(fs.readFileSync(file, "utf8"), {
-    compilerOptions: { module: ts.ModuleKind.CommonJS, target: ts.ScriptTarget.ES2020 },
-  }).outputText;
-  const box = { exports: {} };
-  const localRequire = (request) => {
-    if (CATALOG.isCatalogRequest(request)) return CATALOG;
-    if (stubs[request]) return stubs[request];
-    throw new Error(`stub 없음: ${request}`);
-  };
-  new Function("exports", "module", "require", js)(box.exports, box, localRequire);
-  return box.exports;
+  return makeLoader({
+    root: ROOT,
+    cache: false,
+    requireFor: (full) => (request) => {
+      if (CATALOG.isCatalogRequest(request)) return CATALOG;
+      if (stubs[request]) return stubs[request];
+      throw new Error(`stub 없음: ${request}`);
+    },
+  }).loadTs(file);
 }
 
 const selection = loadTs(path.join(ROOT, "A00_Common", "design", "design_selection.ts"), {
diff --git a/resources/tester/helper_286_1_ford_pavement.cjs b/resources/tester/helper_286_1_ford_pavement.cjs
index 117cd3199..af326b295 100644
--- a/resources/tester/helper_286_1_ford_pavement.cjs
+++ b/resources/tester/helper_286_1_ford_pavement.cjs
@@ -3,23 +3,21 @@
  */
 const fs = require("fs");
 const path = require("path");
-const ts = require(path.join(__dirname, "..", "..", "config", "node_modules", "typescript"));
+const { makeLoader } = require("./helper_ts_stub_loader.cjs");
 const CATALOG = require("./helper_322_catalog_module.cjs"); // 구조물 표(322-1)
 
 const ROOT = path.join(__dirname, "..", "..");
 
 function loadTs(file, stubs = {}) {
-  const js = ts.transpileModule(fs.readFileSync(file, "utf8"), {
-    compilerOptions: { module: ts.ModuleKind.CommonJS, target: ts.ScriptTarget.ES2020 },
-  }).outputText;
-  const box = { exports: {} };
-  const localRequire = (request) => {
-    if (CATALOG.isCatalogRequest(request)) return CATALOG;
-    if (stubs[request]) return stubs[request];
-    throw new Error(`stub 없음: ${request}`);
-  };
-  new Function("exports", "module", "require", js)(box.exports, box, localRequire);
-  return box.exports;
+  return makeLoader({
+    root: ROOT,
+    cache: false,
+    requireFor: (full) => (request) => {
+      if (CATALOG.isCatalogRequest(request)) return CATALOG;
+      if (stubs[request]) return stubs[request];
+      throw new Error(`stub 없음: ${request}`);
+    },
+  }).loadTs(file);
 }
 
 const input = JSON.parse(fs.readFileSync(process.argv[2], "utf8"));
diff --git a/resources/tester/helper_294_1_chute_remove_pick.cjs b/resources/tester/helper_294_1_chute_remove_pick.cjs
index e18dc83b0..c295909a0 100644
--- a/resources/tester/helper_294_1_chute_remove_pick.cjs
+++ b/resources/tester/helper_294_1_chute_remove_pick.cjs
@@ -5,7 +5,7 @@
  */
 const fs = require("fs");
 const path = require("path");
-const ts = require(path.join(__dirname, "..", "..", "config", "node_modules", "typescript"));
+const { makeLoader } = require("./helper_ts_stub_loader.cjs");
 
 const ROOT = path.join(__dirname, "..", "..");
 
@@ -165,14 +165,11 @@ globalThis.document = {
   querySelector: (s) => body.querySelector(s),
 };
 
-function loadTs(file) {
-  const js = ts.transpileModule(fs.readFileSync(file, "utf8"), {
-    compilerOptions: { module: ts.ModuleKind.CommonJS, target: ts.ScriptTarget.ES2020 },
-  }).outputText;
-  const box = { exports: {} };
-  new Function("exports", "module", "require", js)(box.exports, box, require);
-  return box.exports;
-}
+const { loadTs } = makeLoader({
+  root: ROOT,
+  cache: false,
+  requireFor: () => require,
+});
 const dock = loadTs(path.join(ROOT, "B06_Section", "B06_Section_UI_Adjust_Dock.ts"));
 
 // ── 폼 흉내 — 명세 상자 = fieldset[data-spec-container] > legend(글 + [삭제]) ──────────
diff --git a/resources/tester/helper_294_7_ford_slab_pick.cjs b/resources/tester/helper_294_7_ford_slab_pick.cjs
index b1e235a3e..82057408d 100644
--- a/resources/tester/helper_294_7_ford_slab_pick.cjs
+++ b/resources/tester/helper_294_7_ford_slab_pick.cjs
@@ -4,7 +4,7 @@
  */
 const fs = require("fs");
 const path = require("path");
-const ts = require(path.join(__dirname, "..", "..", "config", "node_modules", "typescript"));
+const { makeLoader } = require("./helper_ts_stub_loader.cjs");
 
 const ROOT = path.join(__dirname, "..", "..");
 const B06 = path.join(ROOT, "B06_Section");
@@ -30,19 +30,15 @@ const STUBS = {
   "./B06_Section_UI_Page_Persist": { isBermType: (typeId) => typeId === "berm" },
 };
 const resolve = (base) => (fs.existsSync(`${base}.ts`) ? `${base}.ts` : base);
-function loadTs(full) {
-  const js = ts.transpileModule(fs.readFileSync(full, "utf8"), {
-    compilerOptions: { module: ts.ModuleKind.CommonJS, target: ts.ScriptTarget.ES2020 },
-  }).outputText;
-  const box = { exports: {} };
-  const localRequire = (request) => {
+const { loadTs } = makeLoader({
+  root: ROOT,
+  cache: false,
+  requireFor: (full) => (request) => {
     if (STUBS[request]) return STUBS[request];
     if (request.endsWith(".css")) return {};
     return loadTs(resolve(path.join(path.dirname(full), request)));
-  };
-  new Function("exports", "module", "require", js)(box.exports, box, localRequire);
-  return box.exports;
-}
+  },
+});
 const SP = loadTs(path.join(B06, "B06_Section_UI_Cross_Shape_Pick.ts"));
 const PO = loadTs(path.join(B06, "B06_Section_UI_Cross_Pick_Order.ts"));
 const SEL = loadTs(path.join(B06, "B06_Section_UI_Page_Structures_Selection.ts"));
diff --git a/resources/tester/helper_295_pick_order_detail.cjs b/resources/tester/helper_295_pick_order_detail.cjs
index 64f1f61f6..e702ec903 100644
--- a/resources/tester/helper_295_pick_order_detail.cjs
+++ b/resources/tester/helper_295_pick_order_detail.cjs
@@ -4,7 +4,7 @@
  */
 const fs = require("fs");
 const path = require("path");
-const ts = require(path.join(__dirname, "..", "..", "config", "node_modules", "typescript"));
+const { makeLoader } = require("./helper_ts_stub_loader.cjs");
 
 const ROOT = path.join(__dirname, "..", "..");
 const B06 = path.join(ROOT, "B06_Section");
@@ -18,21 +18,17 @@ const STUBS = {
   "./B06_Section_UI_Section_Common": { CROSS_PAD },
 };
 const resolve = (base) => (fs.existsSync(`${base}.ts`) ? `${base}.ts` : base);
-function loadTs(full) {
-  const js = ts.transpileModule(fs.readFileSync(full, "utf8"), {
-    compilerOptions: { module: ts.ModuleKind.CommonJS, target: ts.ScriptTarget.ES2020 },
-  }).outputText;
-  const box = { exports: {} };
-  const localRequire = (request) => {
+const { loadTs } = makeLoader({
+  root: ROOT,
+  cache: false,
+  requireFor: (full) => (request) => {
     if (STUBS[request]) return STUBS[request];
     if (request.endsWith(".css")) return {};
     if (request.startsWith("@util/"))
       return loadTs(resolve(path.join(ROOT, "common_util", request.slice(6))));
     return loadTs(resolve(path.join(path.dirname(full), request)));
-  };
-  new Function("exports", "module", "require", js)(box.exports, box, localRequire);
-  return box.exports;
-}
+  },
+});
 const P = loadTs(path.join(B06, "B06_Section_UI_Cross_Pick_Order.ts"));
 const G = loadTs(path.join(B06, "logic/B06_Section_UI_Cross_Detail_Geom.ts"));
 const S = loadTs(path.join(B06, "B06_Section_UI_Cross_Detail_Select.ts"));
diff --git a/resources/tester/helper_298_3_save_shape.cjs b/resources/tester/helper_298_3_save_shape.cjs
index 3eeb98d67..43c5aa17e 100644
--- a/resources/tester/helper_298_3_save_shape.cjs
+++ b/resources/tester/helper_298_3_save_shape.cjs
@@ -4,7 +4,7 @@
  */
 const fs = require("fs");
 const path = require("path");
-const ts = require(path.join(__dirname, "..", "..", "config", "node_modules", "typescript"));
+const { makeLoader } = require("./helper_ts_stub_loader.cjs");
 
 const ROOT = path.join(__dirname, "..", "..");
 const calls = [];
@@ -60,18 +60,14 @@ const STUBS = {
   },
 };
 
-function loadTs(full) {
-  const js = ts.transpileModule(fs.readFileSync(full, "utf8"), {
-    compilerOptions: { module: ts.ModuleKind.CommonJS, target: ts.ScriptTarget.ES2020 },
-  }).outputText;
-  const box = { exports: {} };
-  const localRequire = (request) => {
+const { loadTs } = makeLoader({
+  root: ROOT,
+  cache: false,
+  requireFor: (full) => (request) => {
     if (STUBS[request]) return STUBS[request];
     throw new Error(`stub 없음: ${request}`);
-  };
-  new Function("exports", "module", "require", js)(box.exports, box, localRequire);
-  return box.exports;
-}
+  },
+});
 
 const save = loadTs(path.join(ROOT, "A00_Common", "design", "design_save.ts"));
 const ctx = (extra = {}) => ({
diff --git a/resources/tester/helper_298_add_reanalyze.cjs b/resources/tester/helper_298_add_reanalyze.cjs
index 8edfbfa25..9e15f843e 100644
--- a/resources/tester/helper_298_add_reanalyze.cjs
+++ b/resources/tester/helper_298_add_reanalyze.cjs
@@ -4,35 +4,25 @@
  */
 const fs = require("fs");
 const path = require("path");
-const ts = require(path.join(__dirname, "..", "..", "config", "node_modules", "typescript"));
+const { makeLoader } = require("./helper_ts_stub_loader.cjs");
 
 const ROOT = path.join(__dirname, "..", "..");
-const cache = new Map();
 const toasts = [];
 const STUBS = {
   "@ui/ui_template_elements": { showToast: (message, kind) => toasts.push([message, kind]) },
 };
 
-function loadTs(file) {
-  const full = path.resolve(file);
-  if (cache.has(full)) return cache.get(full);
-  const js = ts.transpileModule(fs.readFileSync(full, "utf8"), {
-    compilerOptions: { module: ts.ModuleKind.CommonJS, target: ts.ScriptTarget.ES2020 },
-  }).outputText;
-  const box = { exports: {} };
-  cache.set(full, box.exports);
-  const localRequire = (request) => {
+const { loadTs } = makeLoader({
+  root: ROOT,
+  requireFor: (full) => (request) => {
     if (STUBS[request]) return STUBS[request];
     if (request === "@config/config_frontend")
       return loadTs(path.join(ROOT, "config", "config_frontend.ts"));
     if (request.startsWith(".")) return loadTs(path.join(path.dirname(full), `${request}.ts`));
     if (request.startsWith("@")) return new Proxy({}, { get: () => () => {} });
     return require(request);
-  };
-  new Function("exports", "module", "require", js)(box.exports, box, localRequire);
-  cache.set(full, box.exports);
-  return box.exports;
-}
+  },
+});
 
 const B05 = path.join(ROOT, "B05_Profile");
 const fill = loadTs(path.join(B05, "B05_Profile_UI_Drainage_Ford_Fill.ts"));
diff --git a/resources/tester/helper_311_panel_folded.cjs b/resources/tester/helper_311_panel_folded.cjs
index 545a7a2f3..1f07b89b8 100644
--- a/resources/tester/helper_311_panel_folded.cjs
+++ b/resources/tester/helper_311_panel_folded.cjs
@@ -4,10 +4,9 @@
  */
 const fs = require("fs");
 const path = require("path");
-const ts = require(path.join(__dirname, "..", "..", "config", "node_modules", "typescript"));
+const { makeLoader } = require("./helper_ts_stub_loader.cjs");
 
 const ROOT = path.join(__dirname, "..", "..");
-const cache = new Map();
 
 // ── 화면 그릇 흉내 — 요소 · 클래스 · 속성 · 글자 · 자식 ──────────────────────────
 class FakeNode {
@@ -134,26 +133,17 @@ const STUBS = {
   "./B06_Section_UI_Page_Common": { L: (key) => key },
 };
 
-function loadTs(file) {
-  const full = path.resolve(file);
-  if (cache.has(full)) return cache.get(full);
-  const js = ts.transpileModule(fs.readFileSync(full, "utf8"), {
-    compilerOptions: { module: ts.ModuleKind.CommonJS, target: ts.ScriptTarget.ES2020 },
-  }).outputText;
-  const box = { exports: {} };
-  cache.set(full, box.exports);
-  const localRequire = (request) => {
+const { loadTs } = makeLoader({
+  root: ROOT,
+  requireFor: (full) => (request) => {
     if (STUBS[request]) return STUBS[request];
     if (request === "@ui/ui_template_collapsible")
       return loadTs(path.join(ROOT, "ui_template", "ui_template_collapsible.ts"));
     if (request.endsWith(".css")) return {};
     if (request.startsWith(".")) return loadTs(`${path.resolve(path.dirname(full), request)}.ts`);
     return require(request);
-  };
-  new Function("exports", "module", "require", js)(box.exports, box, localRequire);
-  cache.set(full, box.exports);
-  return box.exports;
-}
+  },
+});
 
 const out = {};
 const titleOf = (n) => n.children.find((c) => c.tagName === "h3")?.textContent ?? "";
diff --git a/resources/tester/helper_322_1_catalog.cjs b/resources/tester/helper_322_1_catalog.cjs
index f1724f663..3db295cfd 100644
--- a/resources/tester/helper_322_1_catalog.cjs
+++ b/resources/tester/helper_322_1_catalog.cjs
@@ -6,22 +6,14 @@
 const fs = require("fs");
 const path = require("path");
 const ROOT = path.join(__dirname, "..", "..");
-const ts = require(path.join(ROOT, "config", "node_modules", "typescript"));
+const { makeLoader } = require("./helper_ts_stub_loader.cjs");
 
-function loadTs(full) {
-  if (full.endsWith(".json")) return JSON.parse(fs.readFileSync(full, "utf8"));
-  const js = ts.transpileModule(fs.readFileSync(full, "utf8"), {
-    compilerOptions: {
-      module: ts.ModuleKind.CommonJS,
-      target: ts.ScriptTarget.ES2020,
-      esModuleInterop: true,
-    },
-  }).outputText;
-  const box = { exports: {} };
-  const need = (spec) => loadTs(path.join(path.dirname(full), spec));
-  new Function("exports", "module", "require", js)(box.exports, box, need);
-  return box.exports;
-}
+const { loadTs } = makeLoader({
+  root: ROOT,
+  interop: true,
+  cache: false,
+  requireFor: (full) => (spec) => loadTs(path.join(path.dirname(full), spec)),
+});
 
 const input = JSON.parse(fs.readFileSync(process.argv[2], "utf8"));
 const catalog = loadTs(path.join(ROOT, "common_util", "common_util_structure_catalog.ts"));
diff --git a/resources/tester/helper_323_9_definition_stamp.cjs b/resources/tester/helper_323_9_definition_stamp.cjs
index d0b9627e8..4af4fb1fa 100644
--- a/resources/tester/helper_323_9_definition_stamp.cjs
+++ b/resources/tester/helper_323_9_definition_stamp.cjs
@@ -3,7 +3,7 @@
  */
 const fs = require("fs");
 const path = require("path");
-const ts = require(path.join(__dirname, "..", "..", "config", "node_modules", "typescript"));
+const { makeLoader } = require("./helper_ts_stub_loader.cjs");
 const CATALOG = require("./helper_322_catalog_module.cjs"); // 구조물 표(322-1)
 
 const ROOT = path.join(__dirname, "..", "..");
@@ -54,16 +54,9 @@ globalThis.fetch = async (url, init = {}) => {
   throw new Error(`모르는 요청 ${at}`);
 };
 
-const cache = new Map();
-function loadTs(file) {
-  const full = path.resolve(file);
-  if (cache.has(full)) return cache.get(full);
-  const js = ts.transpileModule(fs.readFileSync(full, "utf8"), {
-    compilerOptions: { module: ts.ModuleKind.CommonJS, target: ts.ScriptTarget.ES2020 },
-  }).outputText;
-  const box = { exports: {} };
-  cache.set(full, box.exports);
-  const localRequire = (request) => {
+const { loadTs } = makeLoader({
+  root: ROOT,
+  requireFor: (full) => (request) => {
     if (CATALOG.isCatalogRequest(request)) return CATALOG;
     if (request === "@config/config_frontend") return { API_BASE_URL: "", API_TIMEOUT_MS: 1000 };
     if (request.endsWith(".json")) return require(path.join(path.dirname(full), request));
@@ -71,11 +64,8 @@ function loadTs(file) {
     if (request.startsWith(".")) return loadTs(path.join(path.dirname(full), `${request}.ts`));
     if (request.startsWith("@")) return new Proxy({}, { get: () => () => undefined });
     return require(request);
-  };
-  new Function("exports", "module", "require", js)(box.exports, box, localRequire);
-  cache.set(full, box.exports);
-  return box.exports;
-}
+  },
+});
 
 const api = loadTs(path.join(ROOT, "B05_Profile", "B05_Profile_Api_Structures.ts"));
 // 472-6 — B06 [저장] = 한 본문 구조물 조각(옛 기본 창구 `flushPendingStructures` 걷음) · 서버 창구 = 가짜 PUT
diff --git a/resources/tester/helper_323_9_twin_cards_3d.cjs b/resources/tester/helper_323_9_twin_cards_3d.cjs
index 472538640..bd5b2d495 100644
--- a/resources/tester/helper_323_9_twin_cards_3d.cjs
+++ b/resources/tester/helper_323_9_twin_cards_3d.cjs
@@ -5,9 +5,8 @@
 const fs = require("fs");
 const path = require("path");
 const ROOT = path.join(__dirname, "..", "..");
-const ts = require(path.join(ROOT, "config", "node_modules", "typescript"));
+const { makeLoader } = require("./helper_ts_stub_loader.cjs");
 
-const cache = new Map();
 const STUBS = {
   "@ui/ui_template_toast": { showToast: () => undefined },
   three: require(path.join(ROOT, "config", "node_modules", "three")),
@@ -16,34 +15,18 @@ const resolve = (base) =>
   [base, `${base}.ts`, path.join(base, "index.ts")].find(
     (p) => fs.existsSync(p) && fs.statSync(p).isFile(),
   ) ?? `${base}.ts`;
-function loadTs(file) {
-  const full = path.resolve(file);
-  if (cache.has(full)) return cache.get(full);
-  if (full.endsWith(".json")) {
-    const data = JSON.parse(fs.readFileSync(full, "utf8"));
-    cache.set(full, data);
-    return data;
-  }
-  const js = ts.transpileModule(fs.readFileSync(full, "utf8"), {
-    compilerOptions: {
-      module: ts.ModuleKind.CommonJS,
-      target: ts.ScriptTarget.ES2020,
-      esModuleInterop: true,
-    },
-  }).outputText;
-  const box = { exports: {} };
-  cache.set(full, box.exports);
-  const localRequire = (request) => {
+const { loadTs } = makeLoader({
+  root: ROOT,
+  interop: true,
+  requireFor: (full) => (request) => {
     if (STUBS[request]) return STUBS[request];
     const alias = { "@util/": "common_util", "@ui/": "ui_template", "@config/": "config" };
     for (const [prefix, dir] of Object.entries(alias))
       if (request.startsWith(prefix))
         return loadTs(resolve(path.join(ROOT, dir, request.slice(prefix.length))));
     return loadTs(resolve(path.join(path.dirname(full), request)));
-  };
-  new Function("exports", "module", "require", js)(box.exports, box, localRequire);
-  return box.exports;
-}
+  },
+});
 
 const { buildCorridorStructures } = loadTs(
   path.join(ROOT, "B05_Profile", "B05_Profile_UI_Corridor_Structures.ts"),
diff --git a/resources/tester/helper_342_3_batched.cjs b/resources/tester/helper_342_3_batched.cjs
index 1190cdc09..ad33d6788 100644
--- a/resources/tester/helper_342_3_batched.cjs
+++ b/resources/tester/helper_342_3_batched.cjs
@@ -3,29 +3,19 @@
  */
 const fs = require("fs");
 const path = require("path");
-const ts = require(path.join(__dirname, "..", "..", "config", "node_modules", "typescript"));
+const { makeLoader } = require("./helper_ts_stub_loader.cjs");
 
 const ROOT = path.join(__dirname, "..", "..");
-const cache = new Map();
 
-function loadTs(file) {
-  const full = path.resolve(file);
-  if (cache.has(full)) return cache.get(full);
-  const js = ts.transpileModule(fs.readFileSync(full, "utf8"), {
-    compilerOptions: { module: ts.ModuleKind.CommonJS, target: ts.ScriptTarget.ES2020 },
-  }).outputText;
-  const box = { exports: {} };
-  cache.set(full, box.exports);
-  const localRequire = (request) => {
+const { loadTs } = makeLoader({
+  root: ROOT,
+  requireFor: (full) => (request) => {
     if (request.endsWith(".json")) return require(path.join(path.dirname(full), request));
     if (request.startsWith(".")) return loadTs(path.join(path.dirname(full), `${request}.ts`));
     if (request.startsWith("@ui/")) return { themeColor: () => "" };
     return require(request);
-  };
-  new Function("exports", "module", "require", js)(box.exports, box, localRequire);
-  cache.set(full, box.exports);
-  return box.exports;
-}
+  },
+});
 
 (async () => {
   const { batched } = loadTs(path.join(ROOT, "B05_Profile", "B05_Profile_UI_Drainage_Pipes.ts"));
diff --git a/resources/tester/helper_344_2_route_pairs.cjs b/resources/tester/helper_344_2_route_pairs.cjs
index ce4aa2f28..546769a9f 100644
--- a/resources/tester/helper_344_2_route_pairs.cjs
+++ b/resources/tester/helper_344_2_route_pairs.cjs
@@ -3,21 +3,19 @@
  */
 const fs = require("fs");
 const path = require("path");
-const ts = require(path.join(__dirname, "..", "..", "config", "node_modules", "typescript"));
+const { makeLoader } = require("./helper_ts_stub_loader.cjs");
 
 const ROOT = path.join(__dirname, "..", "..");
 
 function loadTs(file, stubs = {}) {
-  const js = ts.transpileModule(fs.readFileSync(path.join(ROOT, file), "utf8"), {
-    compilerOptions: { module: ts.ModuleKind.CommonJS, target: ts.ScriptTarget.ES2020 },
-  }).outputText;
-  const box = { exports: {} };
-  const localRequire = (request) => {
-    if (stubs[request]) return stubs[request];
-    throw new Error(`stub 없음: ${request} (${file})`);
-  };
-  new Function("exports", "module", "require", js)(box.exports, box, localRequire);
-  return box.exports;
+  return makeLoader({
+    root: ROOT,
+    cache: false,
+    requireFor: (full) => (request) => {
+      if (stubs[request]) return stubs[request];
+      throw new Error(`stub 없음: ${request} (${file})`);
+    },
+  }).loadTs(path.join(ROOT, file));
 }
 
 const straightJudge = loadTs("B05_Profile/logic/B05_Profile_Profile_Straight.ts");