diff --git a/scripts/test-projects.test-support.mjs b/scripts/test-projects.test-support.mjs
index e7d8d050d038..ece3456082df 100644
--- a/scripts/test-projects.test-support.mjs
+++ b/scripts/test-projects.test-support.mjs
@@ -1540,6 +1540,13 @@ const TOOLING_SOURCE_TEST_TARGETS = new Map([
     "scripts/e2e/lib/codex-npm-plugin-live/assertions.mjs",
     ["test/scripts/docker-build-helper.test.ts"],
   ],
+  [
+    "scripts/e2e/lib/clawhub-fixture-server.cjs",
+    [
+      "test/scripts/clawhub-fixture-server.test.ts",
+      "test/scripts/plugin-prerelease-test-plan.test.ts",
+    ],
+  ],
   ["scripts/e2e/lib/config-reload/assert-log.mjs", ["test/scripts/e2e-mock-config-limits.test.ts"]],
   [
     "scripts/e2e/lib/config-reload/mutate-metadata.mjs",
diff --git a/test/scripts/clawhub-fixture-server.test.ts b/test/scripts/clawhub-fixture-server.test.ts
new file mode 100644
index 000000000000..cd466dbd9e04
--- /dev/null
+++ b/test/scripts/clawhub-fixture-server.test.ts
@@ -0,0 +1,125 @@
+// ClawHub Fixture Server tests cover the local package fixture HTTP contract.
+import { spawn, spawnSync, type ChildProcessWithoutNullStreams } from "node:child_process";
+import { existsSync, readFileSync } from "node:fs";
+import path from "node:path";
+import { setTimeout as delay } from "node:timers/promises";
+import { afterEach, describe, expect, it } from "vitest";
+import { cleanupTempDirs, makeTempDir } from "../helpers/temp-dir.js";
+
+const SCRIPT_PATH = "scripts/e2e/lib/clawhub-fixture-server.cjs";
+const PACKAGE_NAME = "@openclaw/kitchen-sink";
+const PACKAGE_PATH = `/api/v1/packages/${encodeURIComponent(PACKAGE_NAME)}`;
+const KITCHEN_SINK_VERSION = "0.2.5";
+const tempDirs: string[] = [];
+const servers: ChildProcessWithoutNullStreams[] = [];
+
+afterEach(async () => {
+  await Promise.all(servers.splice(0).map(stopServer));
+  cleanupTempDirs(tempDirs);
+});
+
+function collectStream(stream: NodeJS.ReadableStream) {
+  let text = "";
+  stream.setEncoding("utf8");
+  stream.on("data", (chunk: string) => {
+    text += chunk;
+  });
+  return () => text;
+}
+
+async function stopServer(child: ChildProcessWithoutNullStreams) {
+  if (child.exitCode !== null || child.signalCode !== null) {
+    return;
+  }
+  const exited = new Promise<void>((resolve) => {
+    child.once("exit", () => resolve());
+  });
+  child.kill("SIGTERM");
+  await Promise.race([exited, delay(1_000)]);
+  if (child.exitCode === null && child.signalCode === null) {
+    child.kill("SIGKILL");
+    await exited;
+  }
+}
+
+async function startFixtureServer(profile: string) {
+  const root = makeTempDir(tempDirs, "openclaw-clawhub-fixture-server-");
+  const portFile = path.join(root, "port");
+  const child = spawn(process.execPath, [SCRIPT_PATH, profile, portFile], {
+    cwd: process.cwd(),
+    env: { ...process.env },
+    stdio: ["ignore", "pipe", "pipe"],
+  });
+  const readStdout = collectStream(child.stdout);
+  const readStderr = collectStream(child.stderr);
+  servers.push(child);
+
+  for (let attempt = 0; attempt < 100; attempt += 1) {
+    if (existsSync(portFile)) {
+      const port = Number(readFileSync(portFile, "utf8"));
+      if (Number.isInteger(port) && port > 0) {
+        return { baseUrl: `http://127.0.0.1:${port}` };
+      }
+    }
+    if (child.exitCode !== null) {
+      throw new Error(`fixture server exited early: stdout=${readStdout()} stderr=${readStderr()}`);
+    }
+    await delay(25);
+  }
+
+  throw new Error(`fixture server did not write a port: stderr=${readStderr()}`);
+}
+
+async function fetchJson(baseUrl: string, requestPath: string) {
+  const response = await fetch(`${baseUrl}${requestPath}`);
+  expect(response.status).toBe(200);
+  return response.json();
+}
+
+describe("ClawHub fixture server", () => {
+  it("serves package metadata and npm-pack artifacts for kitchen-sink fixtures", async () => {
+    const { baseUrl } = await startFixtureServer("kitchen-sink-plugin");
+
+    const packageDetail = await fetchJson(baseUrl, PACKAGE_PATH);
+    expect(packageDetail.package.name).toBe(PACKAGE_NAME);
+    expect(packageDetail.package.latestVersion).toBe(KITCHEN_SINK_VERSION);
+    expect(packageDetail.package.artifact.format).toBe("tgz");
+
+    const versionDetail = await fetchJson(
+      baseUrl,
+      `${PACKAGE_PATH}/versions/${KITCHEN_SINK_VERSION}/artifact`,
+    );
+    expect(versionDetail.artifact).toMatchObject({
+      artifactKind: "npm-pack",
+      packageName: PACKAGE_NAME,
+      source: "clawhub",
+      version: KITCHEN_SINK_VERSION,
+    });
+
+    const artifactResponse = await fetch(
+      `${baseUrl}${PACKAGE_PATH}/versions/${KITCHEN_SINK_VERSION}/artifact/download`,
+    );
+    expect(artifactResponse.status).toBe(200);
+    expect(artifactResponse.headers.get("x-clawhub-artifact-type")).toBe("npm-pack-tarball");
+    expect(artifactResponse.headers.get("x-clawhub-artifact-sha256")).toMatch(/^[a-f0-9]{64}$/u);
+    expect(Buffer.from(await artifactResponse.arrayBuffer()).length).toBeGreaterThan(100);
+
+    const missingResponse = await fetch(`${baseUrl}/missing`);
+    expect(missingResponse.status).toBe(404);
+    const methodResponse = await fetch(`${baseUrl}${PACKAGE_PATH}`, { method: "POST" });
+    expect(methodResponse.status).toBe(405);
+  });
+
+  it("rejects missing startup arguments before binding a fixture server", () => {
+    const result = spawnSync(process.execPath, [SCRIPT_PATH], {
+      cwd: process.cwd(),
+      encoding: "utf8",
+      env: { ...process.env },
+    });
+
+    expect(result.status).toBe(1);
+    expect(result.stderr).toContain(
+      "usage: clawhub-fixture-server.cjs <kitchen-sink-plugin|plugins> <port-file>",
+    );
+  });
+});
diff --git a/test/scripts/test-projects.test.ts b/test/scripts/test-projects.test.ts
index 643efa26fa95..260d175b80e9 100644
--- a/test/scripts/test-projects.test.ts
+++ b/test/scripts/test-projects.test.ts
@@ -477,6 +477,13 @@ describe("scripts/test-projects changed-target routing", () => {
         "scripts/e2e/lib/codex-npm-plugin-live/assertions.mjs",
         ["test/scripts/docker-build-helper.test.ts"],
       ],
+      [
+        "scripts/e2e/lib/clawhub-fixture-server.cjs",
+        [
+          "test/scripts/clawhub-fixture-server.test.ts",
+          "test/scripts/plugin-prerelease-test-plan.test.ts",
+        ],
+      ],
       [
         "scripts/e2e/lib/config-reload/assert-log.mjs",
         ["test/scripts/e2e-mock-config-limits.test.ts"],
@@ -938,10 +945,7 @@ describe("scripts/test-projects changed-target routing", () => {
   });
 
   it("routes unmatched script changes to the tooling suite instead of skipping tests", () => {
-    const targets = [
-      "scripts/check-no-raw-http2-imports.mjs",
-      "scripts/e2e/lib/clawhub-fixture-server.cjs",
-    ];
+    const targets = ["scripts/check-no-raw-http2-imports.mjs"];
 
     expect(resolveChangedTestTargetPlan(targets)).toEqual({
       mode: "targets",