diff --git a/package.json b/package.json
index 2352c6d75..a08ec1c48 100644
--- a/package.json
+++ b/package.json
@@ -68,13 +68,13 @@
     "dev": "node scripts/run-node.mjs",
     "postinstall": "node scripts/postinstall.js",
     "prepack": "pnpm build",
-    "docs:list": "bun scripts/docs-list.ts",
-    "docs:bin": "bun build scripts/docs-list.ts --compile --outfile bin/docs-list",
+    "docs:list": "node scripts/docs-list.js",
+    "docs:bin": "node scripts/build-docs-list.mjs",
     "docs:dev": "cd docs && mint dev",
     "docs:build": "cd docs && pnpm dlx --reporter append-only mint broken-links",
-    "build": "tsc -p tsconfig.json && bun scripts/canvas-a2ui-copy.ts && bun scripts/copy-hook-metadata.ts && bun scripts/write-build-info.ts",
-    "plugins:sync": "bun scripts/sync-plugin-versions.ts",
-    "release:check": "bun scripts/release-check.ts",
+    "build": "tsc -p tsconfig.json && node --import tsx scripts/canvas-a2ui-copy.ts && node --import tsx scripts/copy-hook-metadata.ts && node --import tsx scripts/write-build-info.ts",
+    "plugins:sync": "node --import tsx scripts/sync-plugin-versions.ts",
+    "release:check": "node --import tsx scripts/release-check.ts",
     "ui:install": "node scripts/ui.js install",
     "ui:dev": "node scripts/ui.js dev",
     "ui:build": "node scripts/ui.js build",
@@ -108,7 +108,7 @@
     "test": "vitest run",
     "test:watch": "vitest",
     "test:ui": "pnpm --dir ui test",
-    "test:force": "bun scripts/test-force.ts",
+    "test:force": "node --import tsx scripts/test-force.ts",
     "test:coverage": "vitest run --coverage",
     "test:e2e": "vitest run --config vitest.e2e.config.ts",
     "test:live": "CLAWDBOT_LIVE_TEST=1 vitest run --config vitest.live.config.ts",
@@ -126,11 +126,11 @@
     "test:install:smoke": "bash scripts/test-install-sh-docker.sh",
     "test:install:e2e:openai": "CLAWDBOT_E2E_MODELS=openai bash scripts/test-install-sh-e2e-docker.sh",
     "test:install:e2e:anthropic": "CLAWDBOT_E2E_MODELS=anthropic bash scripts/test-install-sh-e2e-docker.sh",
-    "protocol:gen": "bun scripts/protocol-gen.ts",
-    "protocol:gen:swift": "bun scripts/protocol-gen-swift.ts",
+    "protocol:gen": "node --import tsx scripts/protocol-gen.ts",
+    "protocol:gen:swift": "node --import tsx scripts/protocol-gen-swift.ts",
     "protocol:check": "pnpm protocol:gen && pnpm protocol:gen:swift && git diff --exit-code -- dist/protocol.schema.json apps/macos/Sources/ClawdbotProtocol/GatewayModels.swift",
     "canvas:a2ui:bundle": "bash scripts/bundle-a2ui.sh",
-    "check:loc": "tsx scripts/check-ts-max-loc.ts --max 500"
+    "check:loc": "node --import tsx scripts/check-ts-max-loc.ts --max 500"
   },
   "keywords": [],
   "author": "",
diff --git a/scripts/build-docs-list.mjs b/scripts/build-docs-list.mjs
new file mode 100644
index 000000000..6d5dbf458
--- /dev/null
+++ b/scripts/build-docs-list.mjs
@@ -0,0 +1,15 @@
+#!/usr/bin/env node
+import fs from "node:fs";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+
+const root = path.resolve(path.dirname(fileURLToPath(import.meta.url)), "..");
+const binDir = path.join(root, "bin");
+const scriptPath = path.join(root, "scripts", "docs-list.js");
+const binPath = path.join(binDir, "docs-list");
+
+fs.mkdirSync(binDir, { recursive: true });
+
+const wrapper = `#!/usr/bin/env node\nimport { spawnSync } from "node:child_process";\nimport path from "node:path";\nimport { fileURLToPath } from "node:url";\n\nconst here = path.dirname(fileURLToPath(import.meta.url));\nconst script = path.join(here, "..", "scripts", "docs-list.js");\n\nconst result = spawnSync(process.execPath, [script], { stdio: "inherit" });\nprocess.exit(result.status ?? 1);\n`;
+
+fs.writeFileSync(binPath, wrapper, { mode: 0o755 });
diff --git a/scripts/docs-list.ts b/scripts/docs-list.js
similarity index 98%
rename from scripts/docs-list.ts
rename to scripts/docs-list.js
index 7fad2594a..194ea43ec 100755
--- a/scripts/docs-list.ts
+++ b/scripts/docs-list.js
@@ -1,10 +1,10 @@
-#!/usr/bin/env bun
+#!/usr/bin/env node
 
 import { readdirSync, readFileSync } from 'node:fs';
 import { join, relative } from 'node:path';
 
 process.stdout.on('error', (error) => {
-  if ((error as NodeJS.ErrnoException).code === 'EPIPE') {
+  if (error?.code === 'EPIPE') {
     process.exit(0);
   }
   throw error;
diff --git a/scripts/release-check.ts b/scripts/release-check.ts
index d3377ce8d..a971e82cb 100755
--- a/scripts/release-check.ts
+++ b/scripts/release-check.ts
@@ -1,4 +1,4 @@
-#!/usr/bin/env bun
+#!/usr/bin/env -S node --import tsx
 
 import { execSync } from "node:child_process";
 import { readdirSync, readFileSync } from "node:fs";
diff --git a/scripts/test-force.ts b/scripts/test-force.ts
index 4e6e3bf9e..055ecd9bc 100755
--- a/scripts/test-force.ts
+++ b/scripts/test-force.ts
@@ -1,4 +1,4 @@
-#!/usr/bin/env bun
+#!/usr/bin/env -S node --import tsx
 import os from "node:os";
 import path from "node:path";
 import { spawnSync } from "node:child_process";
diff --git a/scripts/ui.js b/scripts/ui.js
index fc7bc2ce8..32bbb2009 100644
--- a/scripts/ui.js
+++ b/scripts/ui.js
@@ -45,19 +45,8 @@ function which(cmd) {
 }
 
 function resolveRunner() {
-  // CLAWDBOT_PREFER_PNPM=1 forces pnpm (useful in Docker on architectures where Bun fails)
-  const preferPnpm = process.env.CLAWDBOT_PREFER_PNPM === "1";
-  if (!preferPnpm) {
-    const bun = which("bun");
-    if (bun) return { cmd: bun, kind: "bun" };
-  }
   const pnpm = which("pnpm");
   if (pnpm) return { cmd: pnpm, kind: "pnpm" };
-  if (preferPnpm) {
-    // Fallback to bun if pnpm not found even when preferring pnpm
-    const bun = which("bun");
-    if (bun) return { cmd: bun, kind: "bun" };
-  }
   return null;
 }
 
@@ -107,9 +96,7 @@ if (!action) {
 
 const runner = resolveRunner();
 if (!runner) {
-  process.stderr.write(
-    "Missing UI runner: install bun or pnpm, then retry.\n",
-  );
+  process.stderr.write("Missing UI runner: install pnpm, then retry.\n");
   process.exit(1);
 }
 
@@ -129,32 +116,16 @@ if (action !== "install" && !script) {
   process.exit(2);
 }
 
-if (runner.kind === "bun") {
-  if (action === "install") run(runner.cmd, ["install", ...rest]);
-  else {
-    if (!depsInstalled(action === "test" ? "test" : "build")) {
-      const installEnv =
-        action === "build"
-          ? { ...process.env, NODE_ENV: "production" }
-          : process.env;
-      const installArgs =
-        action === "build" ? ["install", "--production"] : ["install"];
-      runSync(runner.cmd, installArgs, installEnv);
-    }
-    run(runner.cmd, ["run", script, ...rest]);
-  }
-} else {
-  if (action === "install") run(runner.cmd, ["install", ...rest]);
-  else {
-    if (!depsInstalled(action === "test" ? "test" : "build")) {
-      const installEnv =
-        action === "build"
-          ? { ...process.env, NODE_ENV: "production" }
-          : process.env;
-      const installArgs =
-        action === "build" ? ["install", "--prod"] : ["install"];
-      runSync(runner.cmd, installArgs, installEnv);
-    }
-    run(runner.cmd, ["run", script, ...rest]);
+if (action === "install") run(runner.cmd, ["install", ...rest]);
+else {
+  if (!depsInstalled(action === "test" ? "test" : "build")) {
+    const installEnv =
+      action === "build"
+        ? { ...process.env, NODE_ENV: "production" }
+        : process.env;
+    const installArgs =
+      action === "build" ? ["install", "--prod"] : ["install"];
+    runSync(runner.cmd, installArgs, installEnv);
   }
+  run(runner.cmd, ["run", script, ...rest]);
 }