diff --git a/CHANGELOG.md b/CHANGELOG.md
index 456d5694fc0..b3fb7be5c2c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -64,6 +64,7 @@ Docs: https://docs.openclaw.ai
 - Release/CI/E2E: exit Telegram credential proof wrappers promptly after forwarded shutdown signals while keeping the descendant force-kill guard armed.
 - Release/CI/E2E: reject oversized ClickClack fixture request bodies before release journey smokes can accumulate unbounded payloads.
 - Release/CI/E2E: reject oversized OpenAI image-auth mock request bodies before Docker proof runs can accumulate unbounded payloads.
+- Release/CI/E2E: require the Kitchen Sink RPC walk to prove every expected plugin tool is cataloged and effective before invoking tool fixtures.
 - Release/CI/E2E: fail secret-provider proof runs when temporary state cleanup still fails after retries instead of hiding the cleanup error.
 - Release/CI/E2E: fail package-candidate ref proofs when temporary source worktree cleanup fails instead of leaving stale worktrees behind.
 - Release/CI/E2E: remove package tarball extract directories when tar extraction fails before validation can continue.
diff --git a/scripts/e2e/kitchen-sink-rpc-walk.mjs b/scripts/e2e/kitchen-sink-rpc-walk.mjs
index 19eded762ec..d47ce37dcce 100644
--- a/scripts/e2e/kitchen-sink-rpc-walk.mjs
+++ b/scripts/e2e/kitchen-sink-rpc-walk.mjs
@@ -936,7 +936,7 @@ export function extractPluginCommandNames(payload) {
     .toSorted((left, right) => left.localeCompare(right));
 }
 
-function extractToolEntries(payload) {
+export function extractToolEntries(payload) {
   return (Array.isArray(payload?.groups) ? payload.groups : []).flatMap((group) =>
     Array.isArray(group?.tools) ? group.tools : [],
   );
@@ -959,6 +959,31 @@ function assertIncludesAll(actual, expected, label) {
   }
 }
 
+export function assertExpectedKitchenSinkToolEntries(
+  entries,
+  label,
+  { requirePluginProvenance = false } = {},
+) {
+  const ids = entries.map((entry) => entry?.id).filter(isNonEmptyString);
+  assertIncludesAll(ids, EXPECTED_TOOLS, label);
+  if (requirePluginProvenance) {
+    const wrongProvenance = entries
+      .filter((entry) => EXPECTED_TOOLS.includes(entry?.id))
+      .filter((entry) => entry.source !== "plugin" || entry.pluginId !== PLUGIN_ID)
+      .map((entry) => ({
+        id: entry?.id,
+        pluginId: entry?.pluginId,
+        source: entry?.source,
+      }));
+    if (wrongProvenance.length > 0) {
+      throw new Error(
+        `${label} plugin provenance mismatch: ${JSON.stringify(wrongProvenance)}`,
+      );
+    }
+  }
+  return ids;
+}
+
 function assertChannelAccountRunning(payload) {
   const accounts = Array.isArray(payload?.channelAccounts?.[CHANNEL_ID])
     ? payload.channelAccounts[CHANNEL_ID]
@@ -970,13 +995,27 @@ function assertChannelAccountRunning(payload) {
   return account;
 }
 
-function assertToolInvokeResult(payload) {
+export function assertKitchenSinkSearchInvokeResult(payload) {
   if (payload?.ok !== true || payload?.source !== "plugin") {
-    throw new Error(`Kitchen Sink tool invoke failed: ${JSON.stringify(payload)}`);
+    throw new Error(`Kitchen Sink search tool invoke failed: ${JSON.stringify(payload)}`);
   }
   const text = JSON.stringify(payload.output ?? payload);
   if (!text.includes("Kitchen Sink image fixture")) {
-    throw new Error(`Kitchen Sink tool output missed expected fixture: ${text.slice(0, 1000)}`);
+    throw new Error(
+      `Kitchen Sink search tool output missed expected fixture: ${text.slice(0, 1000)}`,
+    );
+  }
+}
+
+export function assertKitchenSinkTextInvokeResult(payload) {
+  if (payload?.ok !== true || payload?.source !== "plugin") {
+    throw new Error(`Kitchen Sink text tool invoke failed: ${JSON.stringify(payload)}`);
+  }
+  const text = JSON.stringify(payload.output ?? payload);
+  if (!text.includes("tool:kitchen_sink_text") || !text.includes("Kitchen Sink")) {
+    throw new Error(
+      `Kitchen Sink text tool output missed expected fixture: ${text.slice(0, 1000)}`,
+    );
   }
 }
 
@@ -1608,12 +1647,11 @@ export async function main() {
       rpcOptions,
     );
     const catalogTools = extractToolEntries(catalog);
-    const catalogToolIds = catalogTools.map((entry) => entry?.id).filter(isNonEmptyString);
-    assertIncludesAny(catalogToolIds, EXPECTED_TOOLS, "tools.catalog plugin tools");
-    const pluginTool = catalogTools.find((entry) => EXPECTED_TOOLS.includes(entry?.id));
-    if (pluginTool?.source !== "plugin" || pluginTool?.pluginId !== PLUGIN_ID) {
-      throw new Error(`tools.catalog plugin provenance missing: ${JSON.stringify(pluginTool)}`);
-    }
+    const catalogToolIds = assertExpectedKitchenSinkToolEntries(
+      catalogTools,
+      "tools.catalog plugin tools",
+      { requirePluginProvenance: true },
+    );
 
     const createdSession = await retryRpcCall(
       "sessions.create",
@@ -1625,10 +1663,12 @@ export async function main() {
       { sessionKey: createdSession.key, agentId: "main" },
       rpcOptions,
     );
-    const effectiveToolIds = extractToolEntries(effective).map((entry) => entry?.id);
-    assertIncludesAny(effectiveToolIds, EXPECTED_TOOLS, "tools.effective plugin tools");
+    assertExpectedKitchenSinkToolEntries(
+      extractToolEntries(effective),
+      "tools.effective plugin tools",
+    );
 
-    const invoked = await retryRpcCall(
+    const searchInvoked = await retryRpcCall(
       "tools.invoke",
       {
         name: "kitchen_sink_search",
@@ -1639,7 +1679,20 @@ export async function main() {
       },
       rpcOptions,
     );
-    assertToolInvokeResult(invoked);
+    assertKitchenSinkSearchInvokeResult(searchInvoked);
+
+    const textInvoked = await retryRpcCall(
+      "tools.invoke",
+      {
+        name: "kitchen_sink_text",
+        args: { prompt: "explain kitchen sink rpc walk" },
+        sessionKey: createdSession.key,
+        agentId: "main",
+        idempotencyKey: "kitchen-sink-rpc-text",
+      },
+      rpcOptions,
+    );
+    assertKitchenSinkTextInvokeResult(textInvoked);
 
     const ttsProviders = await retryRpcCall("tts.providers", {}, rpcOptions);
     const ttsStatus = await retryRpcCall("tts.status", {}, rpcOptions);
diff --git a/test/scripts/kitchen-sink-rpc-walk.test.ts b/test/scripts/kitchen-sink-rpc-walk.test.ts
index 90610a4ad9b..3b12ecc1652 100644
--- a/test/scripts/kitchen-sink-rpc-walk.test.ts
+++ b/test/scripts/kitchen-sink-rpc-walk.test.ts
@@ -15,6 +15,9 @@ import {
   appendBoundedOutput,
   assertCommandResourceCeiling,
   assertDiagnosticStabilityClean,
+  assertExpectedKitchenSinkToolEntries,
+  assertKitchenSinkSearchInvokeResult,
+  assertKitchenSinkTextInvokeResult,
   assertResourceCeiling,
   cleanupKitchenSinkEnv,
   createGatewayReadyLogScanner,
@@ -92,7 +95,7 @@ describe("kitchen-sink RPC isolated state", () => {
   });
 
   it("can fail the walk when generated temp cleanup cannot remove the root", async () => {
-    const rmSync = vi.spyOn(fs, "rmSync").mockImplementation(() => {
+    const rmSyncSpy = vi.spyOn(fs, "rmSync").mockImplementation(() => {
       throw new Error("device busy");
     });
 
@@ -107,9 +110,9 @@ describe("kitchen-sink RPC isolated state", () => {
       ).rejects.toThrow(
         "failed to remove Kitchen Sink RPC temp root: /tmp/openclaw-kitchen-sink-rpc-stuck",
       );
-      expect(rmSync).toHaveBeenCalledTimes(3);
+      expect(rmSyncSpy).toHaveBeenCalledTimes(3);
     } finally {
-      rmSync.mockRestore();
+      rmSyncSpy.mockRestore();
     }
   });
 });
@@ -522,6 +525,81 @@ describe("kitchen-sink RPC command catalog assertions", () => {
       }),
     ).toEqual(["kitchen", "kitchen-sink"]);
   });
+
+  it("requires every expected Kitchen Sink plugin tool", () => {
+    expect(() =>
+      assertExpectedKitchenSinkToolEntries(
+        [
+          { id: "kitchen_sink_text", source: "plugin", pluginId: "openclaw-kitchen-sink-fixture" },
+        ],
+        "tools.catalog plugin tools",
+        { requirePluginProvenance: true },
+      ),
+    ).toThrow("tools.catalog plugin tools missing kitchen_sink_search, kitchen_sink_image_job");
+  });
+
+  it("requires plugin provenance for expected catalog tools", () => {
+    expect(() =>
+      assertExpectedKitchenSinkToolEntries(
+        [
+          { id: "kitchen_sink_text", source: "plugin", pluginId: "openclaw-kitchen-sink-fixture" },
+          { id: "kitchen_sink_search", source: "core", pluginId: "openclaw-kitchen-sink-fixture" },
+          { id: "kitchen_sink_image_job", source: "plugin", pluginId: "other-plugin" },
+        ],
+        "tools.catalog plugin tools",
+        { requirePluginProvenance: true },
+      ),
+    ).toThrow("tools.catalog plugin tools plugin provenance mismatch");
+  });
+
+  it("accepts complete expected tool coverage", () => {
+    expect(
+      assertExpectedKitchenSinkToolEntries(
+        [
+          { id: "kitchen_sink_text", source: "plugin", pluginId: "openclaw-kitchen-sink-fixture" },
+          {
+            id: "kitchen_sink_search",
+            source: "plugin",
+            pluginId: "openclaw-kitchen-sink-fixture",
+          },
+          {
+            id: "kitchen_sink_image_job",
+            source: "plugin",
+            pluginId: "openclaw-kitchen-sink-fixture",
+          },
+        ],
+        "tools.catalog plugin tools",
+        { requirePluginProvenance: true },
+      ),
+    ).toEqual(["kitchen_sink_text", "kitchen_sink_search", "kitchen_sink_image_job"]);
+  });
+
+  it("checks search and text tool invocation fixtures separately", () => {
+    expect(() =>
+      assertKitchenSinkSearchInvokeResult({
+        ok: true,
+        source: "plugin",
+        output: { results: [{ title: "Kitchen Sink image fixture" }] },
+      }),
+    ).not.toThrow();
+    expect(() =>
+      assertKitchenSinkTextInvokeResult({
+        ok: true,
+        source: "plugin",
+        output: {
+          route: "tool:kitchen_sink_text",
+          text: "Kitchen Sink text provider produced a deterministic reply.",
+        },
+      }),
+    ).not.toThrow();
+    expect(() =>
+      assertKitchenSinkTextInvokeResult({
+        ok: true,
+        source: "plugin",
+        output: { route: "tool:kitchen_sink_search" },
+      }),
+    ).toThrow("Kitchen Sink text tool output missed expected fixture");
+  });
 });
 
 describe("kitchen-sink RPC diagnostics assertions", () => {