diff --git a/src/cli/nodes-camera.ts b/src/cli/nodes-camera.ts
index ef06623a77..a31641fa91 100644
--- a/src/cli/nodes-camera.ts
+++ b/src/cli/nodes-camera.ts
@@ -1,8 +1,13 @@
-import { randomUUID } from "node:crypto";
 import * as fs from "node:fs/promises";
-import * as os from "node:os";
 import * as path from "node:path";
 import { resolveCliName } from "./cli-name.js";
+import {
+  asBoolean,
+  asNumber,
+  asRecord,
+  asString,
+  resolveTempPathParts,
+} from "./nodes-media-utils.js";
 
 const MAX_CAMERA_URL_DOWNLOAD_BYTES = 250 * 1024 * 1024;
 
@@ -24,22 +29,6 @@ export type CameraClipPayload = {
   hasAudio: boolean;
 };
 
-function asRecord(value: unknown): Record<string, unknown> {
-  return typeof value === "object" && value !== null ? (value as Record<string, unknown>) : {};
-}
-
-function asString(value: unknown): string | undefined {
-  return typeof value === "string" ? value : undefined;
-}
-
-function asNumber(value: unknown): number | undefined {
-  return typeof value === "number" && Number.isFinite(value) ? value : undefined;
-}
-
-function asBoolean(value: unknown): boolean | undefined {
-  return typeof value === "boolean" ? value : undefined;
-}
-
 export function parseCameraSnapPayload(value: unknown): CameraSnapPayload {
   const obj = asRecord(value);
   const format = asString(obj.format);
@@ -73,10 +62,12 @@ export function cameraTempPath(opts: {
   tmpDir?: string;
   id?: string;
 }) {
-  const tmpDir = opts.tmpDir ?? os.tmpdir();
-  const id = opts.id ?? randomUUID();
+  const { tmpDir, id, ext } = resolveTempPathParts({
+    tmpDir: opts.tmpDir,
+    id: opts.id,
+    ext: opts.ext,
+  });
   const facingPart = opts.facing ? `-${opts.facing}` : "";
-  const ext = opts.ext.startsWith(".") ? opts.ext : `.${opts.ext}`;
   const cliName = resolveCliName();
   return path.join(tmpDir, `${cliName}-camera-${opts.kind}${facingPart}-${id}${ext}`);
 }
diff --git a/src/cli/nodes-canvas.ts b/src/cli/nodes-canvas.ts
index eb7a90236c..78c7a03029 100644
--- a/src/cli/nodes-canvas.ts
+++ b/src/cli/nodes-canvas.ts
@@ -1,21 +1,12 @@
-import { randomUUID } from "node:crypto";
-import * as os from "node:os";
 import * as path from "node:path";
 import { resolveCliName } from "./cli-name.js";
+import { asRecord, asString, resolveTempPathParts } from "./nodes-media-utils.js";
 
 export type CanvasSnapshotPayload = {
   format: string;
   base64: string;
 };
 
-function asRecord(value: unknown): Record<string, unknown> {
-  return typeof value === "object" && value !== null ? (value as Record<string, unknown>) : {};
-}
-
-function asString(value: unknown): string | undefined {
-  return typeof value === "string" ? value : undefined;
-}
-
 export function parseCanvasSnapshotPayload(value: unknown): CanvasSnapshotPayload {
   const obj = asRecord(value);
   const format = asString(obj.format);
@@ -27,9 +18,7 @@ export function parseCanvasSnapshotPayload(value: unknown): CanvasSnapshotPayloa
 }
 
 export function canvasSnapshotTempPath(opts: { ext: string; tmpDir?: string; id?: string }) {
-  const tmpDir = opts.tmpDir ?? os.tmpdir();
-  const id = opts.id ?? randomUUID();
-  const ext = opts.ext.startsWith(".") ? opts.ext : `.${opts.ext}`;
+  const { tmpDir, id, ext } = resolveTempPathParts(opts);
   const cliName = resolveCliName();
   return path.join(tmpDir, `${cliName}-canvas-snapshot-${id}${ext}`);
 }
diff --git a/src/cli/nodes-media-utils.test.ts b/src/cli/nodes-media-utils.test.ts
new file mode 100644
index 0000000000..1204056f6b
--- /dev/null
+++ b/src/cli/nodes-media-utils.test.ts
@@ -0,0 +1,30 @@
+import { describe, expect, it } from "vitest";
+import {
+  asBoolean,
+  asNumber,
+  asRecord,
+  asString,
+  resolveTempPathParts,
+} from "./nodes-media-utils.js";
+
+describe("cli/nodes-media-utils", () => {
+  it("parses primitive helper values", () => {
+    expect(asRecord({ a: 1 })).toEqual({ a: 1 });
+    expect(asRecord("x")).toEqual({});
+    expect(asString("x")).toBe("x");
+    expect(asString(1)).toBeUndefined();
+    expect(asNumber(1)).toBe(1);
+    expect(asNumber(Number.NaN)).toBeUndefined();
+    expect(asBoolean(true)).toBe(true);
+    expect(asBoolean(1)).toBeUndefined();
+  });
+
+  it("normalizes temp path parts", () => {
+    expect(resolveTempPathParts({ ext: "png", tmpDir: "/tmp", id: "id1" })).toEqual({
+      tmpDir: "/tmp",
+      id: "id1",
+      ext: ".png",
+    });
+    expect(resolveTempPathParts({ ext: ".jpg", tmpDir: "/tmp", id: "id2" }).ext).toBe(".jpg");
+  });
+});
diff --git a/src/cli/nodes-media-utils.ts b/src/cli/nodes-media-utils.ts
new file mode 100644
index 0000000000..eb8f853c6f
--- /dev/null
+++ b/src/cli/nodes-media-utils.ts
@@ -0,0 +1,30 @@
+import { randomUUID } from "node:crypto";
+import * as os from "node:os";
+
+export function asRecord(value: unknown): Record<string, unknown> {
+  return typeof value === "object" && value !== null ? (value as Record<string, unknown>) : {};
+}
+
+export function asString(value: unknown): string | undefined {
+  return typeof value === "string" ? value : undefined;
+}
+
+export function asNumber(value: unknown): number | undefined {
+  return typeof value === "number" && Number.isFinite(value) ? value : undefined;
+}
+
+export function asBoolean(value: unknown): boolean | undefined {
+  return typeof value === "boolean" ? value : undefined;
+}
+
+export function resolveTempPathParts(opts: { ext: string; tmpDir?: string; id?: string }): {
+  ext: string;
+  tmpDir: string;
+  id: string;
+} {
+  return {
+    tmpDir: opts.tmpDir ?? os.tmpdir(),
+    id: opts.id ?? randomUUID(),
+    ext: opts.ext.startsWith(".") ? opts.ext : `.${opts.ext}`,
+  };
+}
diff --git a/src/cli/nodes-screen.ts b/src/cli/nodes-screen.ts
index 5d167e2f1e..d7712045d0 100644
--- a/src/cli/nodes-screen.ts
+++ b/src/cli/nodes-screen.ts
@@ -1,7 +1,6 @@
-import { randomUUID } from "node:crypto";
-import * as os from "node:os";
 import * as path from "node:path";
 import { writeBase64ToFile } from "./nodes-camera.js";
+import { asRecord, asString, resolveTempPathParts } from "./nodes-media-utils.js";
 
 export type ScreenRecordPayload = {
   format: string;
@@ -12,14 +11,6 @@ export type ScreenRecordPayload = {
   hasAudio?: boolean;
 };
 
-function asRecord(value: unknown): Record<string, unknown> {
-  return typeof value === "object" && value !== null ? (value as Record<string, unknown>) : {};
-}
-
-function asString(value: unknown): string | undefined {
-  return typeof value === "string" ? value : undefined;
-}
-
 export function parseScreenRecordPayload(value: unknown): ScreenRecordPayload {
   const obj = asRecord(value);
   const format = asString(obj.format);
@@ -38,9 +29,7 @@ export function parseScreenRecordPayload(value: unknown): ScreenRecordPayload {
 }
 
 export function screenRecordTempPath(opts: { ext: string; tmpDir?: string; id?: string }) {
-  const tmpDir = opts.tmpDir ?? os.tmpdir();
-  const id = opts.id ?? randomUUID();
-  const ext = opts.ext.startsWith(".") ? opts.ext : `.${opts.ext}`;
+  const { tmpDir, id, ext } = resolveTempPathParts(opts);
   return path.join(tmpDir, `openclaw-screen-record-${id}${ext}`);
 }