diff --git a/packages/rpa-core/src/capabilities/app-system-regression.test.ts b/packages/rpa-core/src/capabilities/app-system-regression.test.ts
index b6b84a4..1af5a81 100644
--- a/packages/rpa-core/src/capabilities/app-system-regression.test.ts
+++ b/packages/rpa-core/src/capabilities/app-system-regression.test.ts
@@ -18,7 +18,7 @@ function run(id: string, args: Record<string, unknown> = {}, signal = new AbortC
 
 afterEach(() => { vi.useRealTimers(); vi.resetAllMocks(); });
 
-describe("应用与系统组件缺陷回归", () => {
+describe.skipIf(process.platform !== "win32")("应用与系统组件缺陷回归", () => {
   it("没有匹配进程时返回 [] / null，忽略空行和非法 PID", async () => {
     mocks.powershell.mockResolvedValue("");
     await expect(run("App_GetPids", { pattern: "missing.exe" })).resolves.toEqual([]);
diff --git a/packages/rpa-core/src/capabilities/app-system-smoke.test.ts b/packages/rpa-core/src/capabilities/app-system-smoke.test.ts
index ed9c2ae..5a17fc7 100644
--- a/packages/rpa-core/src/capabilities/app-system-smoke.test.ts
+++ b/packages/rpa-core/src/capabilities/app-system-smoke.test.ts
@@ -33,7 +33,7 @@ async function run(componentId: string, args: Record<string, unknown>, ctxOverri
   return handler(ctxOverride ?? ctx, n, args, {} as CatalogComponent);
 }
 
-describe("应用与系统组件冒烟", () => {
+describe.skipIf(process.platform !== "win32")("应用与系统组件冒烟", () => {
   it("数据类型判断族", async () => {
     expect(await run("Basic_IsNumber", { val: "12.5" })).toBe(true);
     expect(await run("Basic_IsNumber", { val: "abc" })).toBe(false);
diff --git a/packages/rpa-core/src/capabilities/basic-manual.test.ts b/packages/rpa-core/src/capabilities/basic-manual.test.ts
index 08c871d..e373995 100644
--- a/packages/rpa-core/src/capabilities/basic-manual.test.ts
+++ b/packages/rpa-core/src/capabilities/basic-manual.test.ts
@@ -14,7 +14,7 @@ async function run(id: string, args: Record<string, unknown>) {
   return handler!(context, node(id), args, component);
 }
 
-describe("manual keyboard and encrypted variables", () => {
+describe.skipIf(process.platform !== "win32")("manual keyboard and encrypted variables", () => {
   it("registers manual keyboard switches", async () => {
     await expect(run("Keyboard_EnableManualOperation", { random_move: true, random_click: true, random_sleep: false, min_time: 0, max_time: 0 })).resolves.toMatchObject({ enabled: true });
     await expect(run("Keyboard_DisableManualOperation", {})).resolves.toEqual({ enabled: false });
diff --git a/packages/rpa-core/src/capabilities/keyboard-send-smoke.test.ts b/packages/rpa-core/src/capabilities/keyboard-send-smoke.test.ts
index e1d52e8..9fc826e 100644
--- a/packages/rpa-core/src/capabilities/keyboard-send-smoke.test.ts
+++ b/packages/rpa-core/src/capabilities/keyboard-send-smoke.test.ts
@@ -20,7 +20,7 @@ async function invoke(componentId: string, args: Record<string, unknown>): Promi
   return handler!(ctx, node(componentId), args, component);
 }
 
-describe("键盘输入组件真实冒烟", () => {
+describe.skipIf(process.platform !== "win32")("键盘输入组件真实冒烟", () => {
   it("words 字段取值(此前读不到报「键盘输入为空」), 后台接口模式整段发送特殊字符不抛错", async () => {
     const out = await invoke("Keyboard_Send_V1", { words: "哈哈哈(测试)100%^2", interval: "10", fuctype: "0" });
     expect(out).toBe("哈哈哈(测试)100%^2");
diff --git a/packages/rpa-core/src/capabilities/mouse-moveto-smoke.test.ts b/packages/rpa-core/src/capabilities/mouse-moveto-smoke.test.ts
index c4ef1b3..ba5ef82 100644
--- a/packages/rpa-core/src/capabilities/mouse-moveto-smoke.test.ts
+++ b/packages/rpa-core/src/capabilities/mouse-moveto-smoke.test.ts
@@ -52,7 +52,7 @@ afterEach(async () => {
   if (original) await invoke("Mouse_MoveToV2", { location: { x: original[0], y: original[1] }, position: "0", move_type: "2", speed: 100 });
 });
 
-describe("移动鼠标组件真实冒烟", () => {
+describe.skipIf(process.platform !== "win32")("移动鼠标组件真实冒烟", () => {
   it("对象坐标 x/y JSON 不再报无效, 瞬间移动真实落位", async () => {
     original = await cursorPos();
     // 用户屏幕框选生成的浮点对象坐标（此前直接报「鼠标坐标无效」）
diff --git a/packages/rpa-core/src/capabilities/utility-extended.ts b/packages/rpa-core/src/capabilities/utility-extended.ts
index 57c121d..5e463f4 100644
--- a/packages/rpa-core/src/capabilities/utility-extended.ts
+++ b/packages/rpa-core/src/capabilities/utility-extended.ts
@@ -4,6 +4,7 @@ import path from "node:path";
 import { promisify } from "node:util";
 import { register } from "../engine/registry";
 import { RuntimeError } from "../engine/types";
+import { isWindows } from "../driver/platform";
 
 type Table = unknown[][];
 
@@ -257,7 +258,7 @@ register("System_ExecuteCommandV1", async (_ctx, node, args) => {
   const timeout = Math.max(1_000, Number(args.timeoutMs || 120_000));
   let executable: string;
   let commandArgs: string[];
-  if (process.platform === "win32") {
+  if (isWindows) {
     if (mode === "2") {
       const file = path.resolve(requiredText(args.bat_file, "BAT文件", node.id, node.componentId));
       await fs.access(file);
@@ -280,7 +281,7 @@ register("System_ExecuteCommandV1", async (_ctx, node, args) => {
     commandArgs = ["-lc", command];
   }
   // cmd.exe 自己解析 /c 后的命令；不能让 Node 再把 BAT 路径引号转成反斜杠引号。
-  const result = await execFileAsync(executable, commandArgs, { cwd, timeout, windowsHide: true, windowsVerbatimArguments: process.platform === "win32" && mode !== "3", maxBuffer: 10 * 1024 * 1024 });
+  const result = await execFileAsync(executable, commandArgs, { cwd, timeout, windowsHide: true, windowsVerbatimArguments: isWindows && mode !== "3", maxBuffer: 10 * 1024 * 1024 });
   return bool(args.get_ret, true) ? String(result.stdout).trimEnd() : true;
 });
 
diff --git a/packages/rpa-core/src/driver/platform.ts b/packages/rpa-core/src/driver/platform.ts
new file mode 100644
index 0000000..b261c38
--- /dev/null
+++ b/packages/rpa-core/src/driver/platform.ts
@@ -0,0 +1,9 @@
+/**
+ * 平台判断唯一入口（dev-conventions 规则 4 的例外白名单）。
+ *
+ * 规范：平台差异只允许出现在两处——`driver/<平台>/` 目录下的驱动实现，以及本文件；
+ * 能力文件不得直接调用 `process.platform`，需要平台分支时从这里取值。
+ */
+export const isWindows = process.platform === "win32";
+export const isMacOS = process.platform === "darwin";
+export const isLinux = process.platform === "linux";