perf: skip dts for local launcher builds (#85142)

scripts/run-node.mjs

@@ -617,6 +617,7 @@ const RUN_NODE_FILTER_SYNC_IO_STDERR_ENV = "OPENCLAW_RUN_NODE_FILTER_SYNC_IO_STD
 const RUN_NODE_BUILD_LOCK_TIMEOUT_ENV = "OPENCLAW_RUN_NODE_BUILD_LOCK_TIMEOUT_MS";
 const RUN_NODE_BUILD_LOCK_POLL_ENV = "OPENCLAW_RUN_NODE_BUILD_LOCK_POLL_MS";
 const RUN_NODE_BUILD_LOCK_STALE_ENV = "OPENCLAW_RUN_NODE_BUILD_LOCK_STALE_MS";
+const RUN_NODE_SKIP_DTS_BUILD_ENV = "OPENCLAW_RUN_NODE_SKIP_DTS_BUILD";
 const DEFAULT_BUILD_LOCK_TIMEOUT_MS = 5 * 60 * 1000;
 const DEFAULT_BUILD_LOCK_POLL_MS = 100;
 const DEFAULT_BUILD_LOCK_STALE_MS = 10 * 60 * 1000;
@@ -1354,7 +1355,10 @@ export async function runNodeMain(params = {}) {
 
           const build = deps.spawn(buildCmd, compilerArgs, {
             cwd: deps.cwd,
-            env: deps.env,
+            env: {
+              ...deps.env,
+              [RUN_NODE_SKIP_DTS_BUILD_ENV]: deps.env[RUN_NODE_SKIP_DTS_BUILD_ENV] ?? "1",
+            },
             stdio: shouldPipeSpawnedOutput(deps) ? ["inherit", "pipe", "pipe"] : "inherit",
           });
           pipeSpawnedOutput(build, deps);

src/infra/run-node.test.ts

@@ -464,6 +464,50 @@ describe("run-node script", () => {
     });
   });
 
+  it("skips DTS generation only for launcher-triggered local builds", async () => {
+    await withTempDir({ prefix: "openclaw-run-node-" }, async (tmp) => {
+      await writeRuntimePostBuildScaffold(tmp);
+      const spawnCalls: Array<{
+        args: string[];
+        env: Record<string, string | undefined>;
+      }> = [];
+      const spawn = (_cmd: string, args: string[], options?: unknown) => {
+        const opts = options as { env?: NodeJS.ProcessEnv } | undefined;
+        spawnCalls.push({
+          args,
+          env: { ...opts?.env },
+        });
+        return createExitedProcess(0);
+      };
+
+      const exitCode = await runNodeMain({
+        cwd: tmp,
+        args: ["status"],
+        env: {
+          ...process.env,
+          OPENCLAW_FORCE_BUILD: "1",
+          OPENCLAW_RUNNER_LOG: "0",
+        },
+        spawn,
+        execPath: process.execPath,
+        platform: process.platform,
+      });
+
+      expect(exitCode).toBe(0);
+      expect(spawnCalls).toHaveLength(3);
+      expect(spawnCalls[0]?.args).toEqual([
+        "scripts/bundled-plugin-assets.mjs",
+        "--phase",
+        "build",
+      ]);
+      expect(spawnCalls[1]?.args).toEqual(["scripts/tsdown-build.mjs", "--no-clean"]);
+      expect(spawnCalls[2]?.args).toEqual(["openclaw.mjs", "status"]);
+      expect(spawnCalls[0]?.env.OPENCLAW_RUN_NODE_SKIP_DTS_BUILD).toBeUndefined();
+      expect(spawnCalls[1]?.env.OPENCLAW_RUN_NODE_SKIP_DTS_BUILD).toBe("1");
+      expect(spawnCalls[2]?.env.OPENCLAW_RUN_NODE_SKIP_DTS_BUILD).toBeUndefined();
+    });
+  });
+
   it("tees launcher output into the requested generic output log", async () => {
     await withTempDir({ prefix: "openclaw-run-node-" }, async (tmp) => {
       await setupTrackedProject(tmp);

tsdown.config.ts

@@ -33,6 +33,7 @@ const env = {
   NODE_ENV: "production",
 };
 const OUTPUT_SOURCE_MAPS = process.env.OUTPUT_SOURCE_MAPS === "1";
+const RUN_NODE_SKIP_DTS_BUILD = process.env.OPENCLAW_RUN_NODE_SKIP_DTS_BUILD === "1";
 
 const SUPPRESSED_EVAL_WARNING_PATHS = [
   "@protobufjs/inquire/index.js",
@@ -334,6 +335,7 @@ export default defineConfig([
     // Build core entrypoints, plugin-sdk subpaths, bundled plugin entrypoints,
     // and bundled hooks in one graph so runtime singletons are emitted once.
     clean: true,
+    dts: RUN_NODE_SKIP_DTS_BUILD ? false : undefined,
     entry: buildUnifiedDistEntries(),
     deps: {
       alwaysBundle: shouldAlwaysBundleDependency,