diff --git a/src/openclaw/__tests__/tmux.test.ts b/src/openclaw/__tests__/tmux.test.ts
index 790a1bbe0..c7c856eeb 100644
--- a/src/openclaw/__tests__/tmux.test.ts
+++ b/src/openclaw/__tests__/tmux.test.ts
@@ -1,13 +1,153 @@
-import { describe, expect, test } from "bun:test"
-import { analyzePaneContent } from "../tmux"
+/// <reference path="../../../bun-test.d.ts" />
+
+import { afterAll, beforeAll, beforeEach, describe, expect, mock, test } from "bun:test"
+
+type MockTmuxCommandResult = {
+  success: boolean
+  output: string
+  stdout: string
+  stderr: string
+  exitCode: number
+}
+
+const runTmuxCommandMock = mock(
+  async (): Promise<MockTmuxCommandResult> => ({
+    success: true,
+    output: "",
+    stdout: "",
+    stderr: "",
+    exitCode: 0,
+  }),
+)
+
+const getTmuxPathMock = mock(async (): Promise<string | null> => "/mock/tmux")
+
+let tmuxModule: typeof import("../tmux")
+
+beforeAll(async () => {
+  mock.module("../../shared/tmux/runner", () => ({
+    runTmuxCommand: runTmuxCommandMock,
+  }))
+
+  mock.module("../../tools/interactive-bash/tmux-path-resolver", () => ({
+    getTmuxPath: getTmuxPathMock,
+  }))
+
+  tmuxModule = await import("../tmux")
+})
+
+beforeEach(() => {
+  runTmuxCommandMock.mockReset()
+  getTmuxPathMock.mockReset()
+  getTmuxPathMock.mockResolvedValue("/mock/tmux")
+})
+
+afterAll(() => {
+  mock.restore()
+})
 
 describe("openclaw tmux helpers", () => {
   test("analyzePaneContent recognizes the opencode welcome prompt", () => {
+    // given
     const content = "opencode\nAsk anything...\nRun /help"
-    expect(analyzePaneContent(content).confidence).toBeGreaterThanOrEqual(1)
+
+    // when
+    const result = tmuxModule.analyzePaneContent(content)
+
+    // then
+    expect(result.confidence).toBe(1)
   })
 
   test("analyzePaneContent returns zero confidence for empty content", () => {
-    expect(analyzePaneContent(null).confidence).toBe(0)
+    // given
+    const content = null
+
+    // when
+    const result = tmuxModule.analyzePaneContent(content)
+
+    // then
+    expect(result.confidence).toBe(0)
+  })
+
+  test("isTmuxAvailable delegates version checks through runTmuxCommand", async () => {
+    // given
+    runTmuxCommandMock.mockResolvedValue({
+      success: true,
+      output: "tmux 3.5a",
+      stdout: "tmux 3.5a",
+      stderr: "",
+      exitCode: 0,
+    })
+
+    // when
+    const result = await tmuxModule.isTmuxAvailable()
+
+    // then
+    expect(result).toBe(true)
+    expect(getTmuxPathMock).toHaveBeenCalledTimes(1)
+    expect(runTmuxCommandMock).toHaveBeenCalledTimes(1)
+    expect(runTmuxCommandMock).toHaveBeenCalledWith("/mock/tmux", ["-V"])
+  })
+
+  test("getTmuxSessionName delegates session lookup through runTmuxCommand", async () => {
+    // given
+    runTmuxCommandMock.mockResolvedValue({
+      success: true,
+      output: "team-mode\n",
+      stdout: "team-mode\n",
+      stderr: "",
+      exitCode: 0,
+    })
+
+    // when
+    const result = await tmuxModule.getTmuxSessionName()
+
+    // then
+    expect(result).toBe("team-mode")
+    expect(runTmuxCommandMock).toHaveBeenCalledWith("/mock/tmux", ["display-message", "-p", "#S"])
+  })
+
+  test("captureTmuxPane delegates pane capture through runTmuxCommand", async () => {
+    // given
+    runTmuxCommandMock.mockResolvedValue({
+      success: true,
+      output: "pane output\n",
+      stdout: "pane output\n",
+      stderr: "",
+      exitCode: 0,
+    })
+
+    // when
+    const result = await tmuxModule.captureTmuxPane("%42", 30)
+
+    // then
+    expect(result).toBe("pane output")
+    expect(runTmuxCommandMock).toHaveBeenCalledWith("/mock/tmux", ["capture-pane", "-p", "-t", "%42", "-S", "-30"])
+  })
+
+  test("sendToPane delegates literal text and Enter through runTmuxCommand", async () => {
+    // given
+    runTmuxCommandMock.mockResolvedValue({
+      success: true,
+      output: "",
+      stdout: "",
+      stderr: "",
+      exitCode: 0,
+    })
+
+    // when
+    const result = await tmuxModule.sendToPane("%42", "hello", true)
+
+    // then
+    expect(result).toBe(true)
+    expect(runTmuxCommandMock).toHaveBeenCalledTimes(2)
+    expect(runTmuxCommandMock.mock.calls[0]).toEqual([
+      "/mock/tmux",
+      ["send-keys", "-t", "%42", "-l", "--", "hello"],
+    ])
+    expect(runTmuxCommandMock.mock.calls[1]).toEqual([
+      "/mock/tmux",
+      ["send-keys", "-t", "%42", "Enter"],
+    ])
   })
 })
diff --git a/src/openclaw/tmux.ts b/src/openclaw/tmux.ts
index 47b04c45a..d7dfaff49 100644
--- a/src/openclaw/tmux.ts
+++ b/src/openclaw/tmux.ts
@@ -1,4 +1,14 @@
-import { spawn } from "../shared/bun-spawn-shim"
+import { runTmuxCommand } from "../shared/tmux/runner"
+import { getTmuxPath } from "../tools/interactive-bash/tmux-path-resolver"
+
+async function runOpenClawTmuxCommand(args: string[]) {
+  const tmuxPath = await getTmuxPath()
+  if (!tmuxPath) {
+    return null
+  }
+
+  return runTmuxCommand(tmuxPath, args)
+}
 
 export function getCurrentTmuxSession(): string | null {
   const env = process.env.TMUX
@@ -9,15 +19,9 @@ export function getCurrentTmuxSession(): string | null {
 
 export async function getTmuxSessionName(): Promise<string | null> {
   try {
-    const proc = spawn(["tmux", "display-message", "-p", "#S"], {
-      stdout: "pipe",
-      stderr: "ignore",
-    })
-    const outputPromise = new Response(proc.stdout).text()
-    await proc.exited
-    const output = await outputPromise
-    if (proc.exitCode !== 0) return null
-    return output.trim() || null
+    const result = await runOpenClawTmuxCommand(["display-message", "-p", "#S"])
+    if (!result?.success) return null
+    return result.output.trim() || null
   } catch {
     return null
   }
@@ -25,18 +29,9 @@ export async function getTmuxSessionName(): Promise<string | null> {
 
 export async function captureTmuxPane(paneId: string, lines = 15): Promise<string | null> {
   try {
-    const proc = spawn(
-      ["tmux", "capture-pane", "-p", "-t", paneId, "-S", `-${lines}`],
-      {
-        stdout: "pipe",
-        stderr: "ignore",
-      },
-    )
-    const outputPromise = new Response(proc.stdout).text()
-    await proc.exited
-    const output = await outputPromise
-    if (proc.exitCode !== 0) return null
-    return output.trim() || null
+    const result = await runOpenClawTmuxCommand(["capture-pane", "-p", "-t", paneId, "-S", `-${lines}`])
+    if (!result?.success) return null
+    return result.output.trim() || null
   } catch {
     return null
   }
@@ -44,21 +39,13 @@ export async function captureTmuxPane(paneId: string, lines = 15): Promise<strin
 
 export async function sendToPane(paneId: string, text: string, confirm = true): Promise<boolean> {
   try {
-    const literalProc = spawn(["tmux", "send-keys", "-t", paneId, "-l", "--", text], {
-      stdout: "ignore",
-      stderr: "ignore",
-    })
-    await literalProc.exited
-    if (literalProc.exitCode !== 0) return false
+    const literalResult = await runOpenClawTmuxCommand(["send-keys", "-t", paneId, "-l", "--", text])
+    if (!literalResult?.success) return false
 
     if (!confirm) return true
 
-    const enterProc = spawn(["tmux", "send-keys", "-t", paneId, "Enter"], {
-      stdout: "ignore",
-      stderr: "ignore",
-    })
-    await enterProc.exited
-    return enterProc.exitCode === 0
+    const enterResult = await runOpenClawTmuxCommand(["send-keys", "-t", paneId, "Enter"])
+    return enterResult?.success ?? false
   } catch {
     return false
   }
@@ -66,12 +53,8 @@ export async function sendToPane(paneId: string, text: string, confirm = true):
 
 export async function isTmuxAvailable(): Promise<boolean> {
   try {
-    const proc = spawn(["tmux", "-V"], {
-      stdout: "ignore",
-      stderr: "ignore",
-    })
-    await proc.exited
-    return proc.exitCode === 0
+    const result = await runOpenClawTmuxCommand(["-V"])
+    return result?.success ?? false
   } catch {
     return false
   }