diff --git a/scripts/build-all.mjs b/scripts/build-all.mjs
index f0eeea30458..7d3db32c38a 100644
--- a/scripts/build-all.mjs
+++ b/scripts/build-all.mjs
@@ -156,6 +156,14 @@ export const BUILD_ALL_PROFILES = {
   ],
 };
 
+export const BUILD_ALL_PROFILE_STEP_ENV = {
+  ciArtifacts: {
+    tsdown: {
+      OPENCLAW_RUN_NODE_SKIP_DTS_BUILD: "1",
+    },
+  },
+};
+
 export function resolveBuildAllSteps(profile = "full") {
   const labels = BUILD_ALL_PROFILES[profile];
   if (!labels) {
@@ -166,19 +174,24 @@ export function resolveBuildAllSteps(profile = "full") {
     const missing = labels.filter((label) => !BUILD_ALL_STEPS.some((step) => step.label === label));
     throw new Error(`Build profile ${profile} references unknown steps: ${missing.join(", ")}`);
   }
-  return selected;
+  const envOverrides = BUILD_ALL_PROFILE_STEP_ENV[profile] ?? {};
+  return selected.map((step) => {
+    const env = envOverrides[step.label];
+    return env ? { ...step, env: { ...(step.env ?? {}), ...env } } : step;
+  });
 }
 
 function resolveStepEnv(step, env, platform) {
+  const stepEnv = step.env ? { ...env, ...step.env } : env;
   if (platform !== "win32" || !step.windowsNodeOptions) {
-    return env;
+    return stepEnv;
   }
-  const currentNodeOptions = env.NODE_OPTIONS?.trim() ?? "";
+  const currentNodeOptions = stepEnv.NODE_OPTIONS?.trim() ?? "";
   if (currentNodeOptions.includes(step.windowsNodeOptions)) {
-    return env;
+    return stepEnv;
   }
   return {
-    ...env,
+    ...stepEnv,
     NODE_OPTIONS: currentNodeOptions
       ? `${currentNodeOptions} ${step.windowsNodeOptions}`
       : step.windowsNodeOptions,
diff --git a/test/scripts/build-all.test.ts b/test/scripts/build-all.test.ts
index 7f0daa3a660..465b7006a80 100644
--- a/test/scripts/build-all.test.ts
+++ b/test/scripts/build-all.test.ts
@@ -4,6 +4,7 @@ import path from "node:path";
 import { describe, expect, it } from "vitest";
 import {
   BUILD_ALL_PROFILES,
+  BUILD_ALL_PROFILE_STEP_ENV,
   BUILD_ALL_STEPS,
   formatBuildAllDuration,
   formatBuildAllTimingSummary,
@@ -195,6 +196,19 @@ describe("resolveBuildAllSteps", () => {
     ]);
   });
 
+  it("skips bundled tsdown declarations for CI artifacts", () => {
+    const tsdown = resolveBuildAllSteps("ciArtifacts").find((step) => step.label === "tsdown");
+
+    expect(BUILD_ALL_PROFILE_STEP_ENV.ciArtifacts.tsdown).toEqual({
+      OPENCLAW_RUN_NODE_SKIP_DTS_BUILD: "1",
+    });
+    expect(
+      resolveBuildAllStep(tsdown!, { env: { OPENCLAW_RUN_NODE_SKIP_DTS_BUILD: "0" } }).options.env,
+    ).toMatchObject({
+      OPENCLAW_RUN_NODE_SKIP_DTS_BUILD: "1",
+    });
+  });
+
   it("uses a minimal built runtime profile for gateway watch regression", () => {
     expect(resolveBuildAllSteps("gatewayWatch").map((step) => step.label)).toEqual([
       "tsdown",