diff --git a/apps/worker/src/run-task/__tests__/run-task.test.ts b/apps/worker/src/run-task/__tests__/run-task.test.ts
index dc7082df5..427331e56 100644
--- a/apps/worker/src/run-task/__tests__/run-task.test.ts
+++ b/apps/worker/src/run-task/__tests__/run-task.test.ts
@@ -235,6 +235,7 @@ vi.mock('../agent-home', () => ({
   activateSkillsFolder: activateSkillsFolderMock,
   readConfiguredSkillsFolder: vi.fn(() => undefined),
   resolvePackagedSkillsFolder: resolvePackagedSkillsFolderMock,
+  seedRuntimeHomeMiseGlobalConfig: vi.fn(() => false),
 }));
 
 vi.mock('../create-harness', () => ({
diff --git a/apps/worker/src/run-task/__tests__/zero-integration-gating.test.ts b/apps/worker/src/run-task/__tests__/zero-integration-gating.test.ts
index e0daca167..7e5638596 100644
--- a/apps/worker/src/run-task/__tests__/zero-integration-gating.test.ts
+++ b/apps/worker/src/run-task/__tests__/zero-integration-gating.test.ts
@@ -172,6 +172,7 @@ vi.mock('../agent-home', () => ({
   activateSkillsFolder: activateSkillsFolderMock,
   readConfiguredSkillsFolder: vi.fn(() => undefined),
   resolvePackagedSkillsFolder: resolvePackagedSkillsFolderMock,
+  seedRuntimeHomeMiseGlobalConfig: vi.fn(() => false),
 }));
 
 vi.mock('../create-harness', () => ({
diff --git a/apps/worker/src/run-task/agent-home.test.ts b/apps/worker/src/run-task/agent-home.test.ts
index a1ca2df84..03814c1ce 100644
--- a/apps/worker/src/run-task/agent-home.test.ts
+++ b/apps/worker/src/run-task/agent-home.test.ts
@@ -13,6 +13,7 @@ import { join } from 'node:path';
 import {
   generateOpenCodeConfig,
   rematerializeOpenCodeCredentialFiles,
+  seedRuntimeHomeMiseGlobalConfig,
 } from './agent-home';
 
 describe('generateOpenCodeConfig provider support', () => {
@@ -784,3 +785,75 @@ describe('rematerializeOpenCodeCredentialFiles', () => {
     expect(logger.warn).toHaveBeenCalledTimes(1);
   });
 });
+
+describe('seedRuntimeHomeMiseGlobalConfig', () => {
+  const tempDirs: string[] = [];
+
+  afterEach(() => {
+    for (const tempDir of tempDirs.splice(0)) {
+      rmSync(tempDir, { recursive: true, force: true });
+    }
+  });
+
+  function createDir(prefix: string): string {
+    const dir = mkdtempSync(join(tmpdir(), prefix));
+    tempDirs.push(dir);
+    return dir;
+  }
+
+  function writeMiseConfig(homeDir: string, content: string): string {
+    const configDir = join(homeDir, '.config', 'mise');
+    mkdirSync(configDir, { recursive: true });
+    const configPath = join(configDir, 'config.toml');
+    writeFileSync(configPath, content, 'utf8');
+    return configPath;
+  }
+
+  it('copies the worker home global config into the runtime home', () => {
+    const sourceHomeDir = createDir('roomote-mise-source-');
+    const homeDir = createDir('roomote-mise-runtime-');
+    writeMiseConfig(sourceHomeDir, '[tools]\nnodejs = "22"\n');
+
+    expect(seedRuntimeHomeMiseGlobalConfig({ homeDir, sourceHomeDir })).toBe(
+      true,
+    );
+    expect(
+      readFileSync(join(homeDir, '.config', 'mise', 'config.toml'), 'utf8'),
+    ).toBe('[tools]\nnodejs = "22"\n');
+  });
+
+  it('leaves an existing runtime home config untouched', () => {
+    const sourceHomeDir = createDir('roomote-mise-source-');
+    const homeDir = createDir('roomote-mise-runtime-');
+    writeMiseConfig(sourceHomeDir, '[tools]\nnodejs = "22"\n');
+    writeMiseConfig(homeDir, '[tools]\nnodejs = "20"\n');
+
+    expect(seedRuntimeHomeMiseGlobalConfig({ homeDir, sourceHomeDir })).toBe(
+      false,
+    );
+    expect(
+      readFileSync(join(homeDir, '.config', 'mise', 'config.toml'), 'utf8'),
+    ).toBe('[tools]\nnodejs = "20"\n');
+  });
+
+  it('does nothing when the worker home has no global config', () => {
+    const sourceHomeDir = createDir('roomote-mise-source-');
+    const homeDir = createDir('roomote-mise-runtime-');
+
+    expect(seedRuntimeHomeMiseGlobalConfig({ homeDir, sourceHomeDir })).toBe(
+      false,
+    );
+    expect(existsSync(join(homeDir, '.config', 'mise', 'config.toml'))).toBe(
+      false,
+    );
+  });
+
+  it('does nothing when the runtime home is the worker home', () => {
+    const homeDir = createDir('roomote-mise-source-');
+    writeMiseConfig(homeDir, '[tools]\nnodejs = "22"\n');
+
+    expect(
+      seedRuntimeHomeMiseGlobalConfig({ homeDir, sourceHomeDir: homeDir }),
+    ).toBe(false);
+  });
+});
diff --git a/apps/worker/src/run-task/agent-home.ts b/apps/worker/src/run-task/agent-home.ts
index 2064a9262..1d691bafb 100644
--- a/apps/worker/src/run-task/agent-home.ts
+++ b/apps/worker/src/run-task/agent-home.ts
@@ -594,6 +594,55 @@ export function activateSkillsFolder({
   return true;
 }
 
+const MISE_GLOBAL_CONFIG_RELATIVE_PATH = ['.config', 'mise', 'config.toml'];
+
+/**
+ * Seeds the task runtime HOME with the worker home's global mise config.
+ *
+ * Mise shims (node, npx, ...) resolve tool versions from the global config at
+ * `$HOME/.config/mise/config.toml` when no repo-level mise config applies to
+ * the process cwd. The task runtime HOME starts empty, so without this seed
+ * any process spawned with the runtime HOME outside a version-pinned
+ * repository — including environment-defined stdio MCP servers
+ * (`npx -y ...`) — fails with "mise ERROR No version is set for shim: node".
+ *
+ * An existing runtime-home config (restored from a snapshot, or written by
+ * the agent via `mise use -g`) is left untouched. Best-effort: returns
+ * whether the config was seeded.
+ */
+export function seedRuntimeHomeMiseGlobalConfig({
+  homeDir,
+  sourceHomeDir,
+}: {
+  homeDir: string;
+  sourceHomeDir: string;
+}): boolean {
+  if (!homeDir || !sourceHomeDir || homeDir === sourceHomeDir) {
+    return false;
+  }
+
+  const sourceConfigPath = path.join(
+    sourceHomeDir,
+    ...MISE_GLOBAL_CONFIG_RELATIVE_PATH,
+  );
+  const targetConfigPath = path.join(
+    homeDir,
+    ...MISE_GLOBAL_CONFIG_RELATIVE_PATH,
+  );
+
+  try {
+    if (!fs.existsSync(sourceConfigPath) || fs.existsSync(targetConfigPath)) {
+      return false;
+    }
+
+    fs.mkdirSync(path.dirname(targetConfigPath), { recursive: true });
+    fs.copyFileSync(sourceConfigPath, targetConfigPath);
+    return true;
+  } catch {
+    return false;
+  }
+}
+
 interface GenerateOpenCodeConfigOptions {
   homeDir: string;
   runtimeEnv: Record<string, string>;
diff --git a/apps/worker/src/run-task/run-task.ts b/apps/worker/src/run-task/run-task.ts
index 8b69c989c..9f7fa7a0e 100644
--- a/apps/worker/src/run-task/run-task.ts
+++ b/apps/worker/src/run-task/run-task.ts
@@ -69,6 +69,7 @@ import { TaskCancellationController } from './task-cancellation-controller';
 import {
   activateSkillsFolder,
   resolvePackagedSkillsFolder,
+  seedRuntimeHomeMiseGlobalConfig,
 } from './agent-home';
 import { installZeroCli } from '../commands/setup/agent-clis';
 
@@ -766,6 +767,17 @@ export const runTask = async ({
 
     if (workerHomeDir) {
       runtimeEnv.HOME = resolveTaskRuntimeHomeDir(workspacePath);
+
+      if (
+        seedRuntimeHomeMiseGlobalConfig({
+          homeDir: runtimeEnv.HOME,
+          sourceHomeDir: workerHomeDir,
+        })
+      ) {
+        logger.info(
+          `[runTask] Seeded runtime home mise global config from ${workerHomeDir}`,
+        );
+      }
     }
 
     delete runtimeEnv.ROOMOTE_TASK_TERMINAL;