diff --git a/docs/tools/code-mode.md b/docs/tools/code-mode.md
index 7785a6e0b111..64c74abf8572 100644
--- a/docs/tools/code-mode.md
+++ b/docs/tools/code-mode.md
@@ -991,6 +991,9 @@ Each result's `telemetry` field reports: hidden catalog size and a source
 breakdown (`openclaw`/`mcp`/`client` counts), cumulative search/describe/call
 counts for the run's catalog, and the model-visible tool names (`exec`,
 `wait`, and retained direct-only tools).
+The `counterScope` identifies one counter lifetime, changing when a catalog is
+replaced or restored but remaining stable when tools are appended or prompt
+policy narrows that catalog.
 
 The run metadata (`meta.agentMeta` in `openclaw agent --json`, mirrored on the
 `agent exec --json` envelope) adds per-run stats:
diff --git a/docs/tools/tool-search.md b/docs/tools/tool-search.md
index 17b7a5cf4c64..56e4d0b78fb3 100644
--- a/docs/tools/tool-search.md
+++ b/docs/tools/tool-search.md
@@ -331,6 +331,9 @@ Code mode attaches a `telemetry` object to every `tool_search_code` result:
 
 - `catalogSize`: number of catalog entries the runtime resolved
 - `sources`: catalog entry counts split into `openclaw`, `mcp`, and `client`
+- `counterScope`: opaque identifier for the counter lifetime; it stays stable
+  when tools are appended or prompt policy narrows the catalog, and changes
+  when the catalog is replaced or restored
 - `searchCount`, `describeCount`, `callCount`: running totals for the catalog
   session, carried across calls rather than reset per call
 
diff --git a/src/agents/embedded-agent-runner/run/attempt-prompt-tool-policy.test.ts b/src/agents/embedded-agent-runner/run/attempt-prompt-tool-policy.test.ts
index 276b6fc56feb..d5598e338c3d 100644
--- a/src/agents/embedded-agent-runner/run/attempt-prompt-tool-policy.test.ts
+++ b/src/agents/embedded-agent-runner/run/attempt-prompt-tool-policy.test.ts
@@ -62,6 +62,7 @@ describe("applyPromptBuildToolsAllow", () => {
     const catalogRef: ToolSearchCatalogRef = {
       current: {
         entries: [catalogEntry("read"), catalogEntry("write")],
+        counterScope: "scope-1",
         searchCount: 0,
         describeCount: 0,
         callCount: 0,
@@ -126,6 +127,7 @@ describe("applyPromptBuildToolsAllow", () => {
     const catalogRef: ToolSearchCatalogRef = {
       current: {
         entries: [catalogEntry("read"), catalogEntry("write")],
+        counterScope: "scope-1",
         searchCount: 0,
         describeCount: 0,
         callCount: 0,
@@ -180,6 +182,7 @@ describe("applyPromptBuildToolsAllow", () => {
     const catalogRef: ToolSearchCatalogRef = {
       current: {
         entries: [catalogEntry(pluginTool.name, pluginTool)],
+        counterScope: "scope-1",
         searchCount: 0,
         describeCount: 0,
         callCount: 0,
@@ -207,6 +210,7 @@ describe("applyPromptBuildToolsAllow", () => {
     const catalogRef: ToolSearchCatalogRef = {
       current: {
         entries: [catalogEntry("read"), catalogEntry("write")],
+        counterScope: "scope-1",
         searchCount: 2,
         describeCount: 1,
         callCount: 3,
@@ -225,15 +229,18 @@ describe("applyPromptBuildToolsAllow", () => {
 
     applyPromptBuildToolsAllow({ ...params, toolsAllow: ["read"] });
     expect(catalogRef.current?.entries.map((entry) => entry.name)).toEqual(["read"]);
+    expect(catalogRef.current?.counterScope).toBe("scope-1");
 
     const writeOnly = applyPromptBuildToolsAllow({ ...params, toolsAllow: ["write"] });
     expect(writeOnly.tools).toEqual([{ name: "write" }]);
     expect(catalogRef.current?.entries.map((entry) => entry.name)).toEqual(["write"]);
+    expect(catalogRef.current?.counterScope).toBe("scope-1");
 
     const restored = applyPromptBuildToolsAllow(params);
     expect(restored.tools).toEqual([{ name: "read" }, { name: "write" }]);
     expect(catalogRef.current).toMatchObject({
       entries: baseline.catalogEntries,
+      counterScope: "scope-1",
       searchCount: 2,
       describeCount: 1,
       callCount: 3,
diff --git a/src/agents/tool-search-catalog.ts b/src/agents/tool-search-catalog.ts
index e98e156b45d3..c89b2c23daf9 100644
--- a/src/agents/tool-search-catalog.ts
+++ b/src/agents/tool-search-catalog.ts
@@ -1,3 +1,4 @@
+import { generateSecureToken } from "../infra/secure-random.js";
 import { getPluginToolMeta, type PluginToolMcpMeta } from "../plugins/tools.js";
 import type { HookContext } from "./agent-tools.before-tool-call.js";
 import {
@@ -131,6 +132,7 @@ function restoreToolSearchCatalog(params: {
 }): void {
   const next = {
     entries: params.entries,
+    counterScope: generateSecureToken(12),
     searchCount: 0,
     describeCount: 0,
     callCount: 0,
@@ -284,6 +286,9 @@ function registerToolSearchCatalog(params: {
   }
   const next = {
     entries: Array.from(byId.values()).toSorted((a, b) => a.id.localeCompare(b.id)),
+    // Appended client tools extend the same counter lifetime. A replacement
+    // gets a new scope so telemetry consumers never infer resets from values.
+    counterScope: prior?.counterScope ?? generateSecureToken(12),
     searchCount: prior?.searchCount ?? 0,
     describeCount: prior?.describeCount ?? 0,
     callCount: prior?.callCount ?? 0,
diff --git a/src/agents/tool-search-ranking.test.ts b/src/agents/tool-search-ranking.test.ts
index 6712ff23ae40..37e6c5e21079 100644
--- a/src/agents/tool-search-ranking.test.ts
+++ b/src/agents/tool-search-ranking.test.ts
@@ -36,7 +36,15 @@ const CATALOG = [
 
 function runtime(): ToolSearchRuntime {
   const ctx = {
-    catalogRef: { current: { entries: CATALOG, searchCount: 0, describeCount: 0, callCount: 0 } },
+    catalogRef: {
+      current: {
+        entries: CATALOG,
+        counterScope: "scope-1",
+        searchCount: 0,
+        describeCount: 0,
+        callCount: 0,
+      },
+    },
   };
   return new ToolSearchRuntime(ctx as never, {
     enabled: true,
@@ -210,6 +218,7 @@ describe("untrusted schemas", () => {
       catalogRef: {
         current: {
           entries: [...CATALOG, hostile],
+          counterScope: "scope-1",
           searchCount: 0,
           describeCount: 0,
           callCount: 0,
@@ -257,7 +266,15 @@ describe("ToolSearchRuntime.search", () => {
       entry({ id: "b", name: "notes", description: "Notes about issue_create and other tools" }),
     ];
     const ctx = {
-      catalogRef: { current: { entries: catalog, searchCount: 0, describeCount: 0, callCount: 0 } },
+      catalogRef: {
+        current: {
+          entries: catalog,
+          counterScope: "scope-1",
+          searchCount: 0,
+          describeCount: 0,
+          callCount: 0,
+        },
+      },
     };
     const search = new ToolSearchRuntime(ctx as never, {
       enabled: true,
@@ -301,7 +318,15 @@ describe("ToolSearchRuntime.search", () => {
       entry({ id: "other", name: "other", description: "Unrelated" }),
     ];
     const ctx = {
-      catalogRef: { current: { entries: catalog, searchCount: 0, describeCount: 0, callCount: 0 } },
+      catalogRef: {
+        current: {
+          entries: catalog,
+          counterScope: "scope-1",
+          searchCount: 0,
+          describeCount: 0,
+          callCount: 0,
+        },
+      },
     };
     const search = new ToolSearchRuntime(ctx as never, {
       enabled: true,
diff --git a/src/agents/tool-search-runtime.test.ts b/src/agents/tool-search-runtime.test.ts
index 16ab0dd7057d..cf806c706bfd 100644
--- a/src/agents/tool-search-runtime.test.ts
+++ b/src/agents/tool-search-runtime.test.ts
@@ -439,6 +439,7 @@ describe("Tool Search input schemas", () => {
       const catalogRef = createToolSearchCatalogRef();
       catalogRef.current = {
         entries: [entry],
+        counterScope: "scope-1",
         searchCount: 0,
         describeCount: 0,
         callCount: 0,
diff --git a/src/agents/tool-search-runtime.ts b/src/agents/tool-search-runtime.ts
index d39dbe52e74e..37e290d81703 100644
--- a/src/agents/tool-search-runtime.ts
+++ b/src/agents/tool-search-runtime.ts
@@ -284,6 +284,7 @@ function getTelemetry(catalog: ToolSearchCatalogSession) {
   return {
     catalogSize: catalog.entries.length,
     sources,
+    counterScope: catalog.counterScope,
     searchCount: catalog.searchCount,
     describeCount: catalog.describeCount,
     callCount: catalog.callCount,
diff --git a/src/agents/tool-search-types.ts b/src/agents/tool-search-types.ts
index e53d946fafac..1cfabc8974bf 100644
--- a/src/agents/tool-search-types.ts
+++ b/src/agents/tool-search-types.ts
@@ -110,6 +110,7 @@ export type ToolSearchCatalogEntry = {
 
 export type ToolSearchCatalogSession = {
   entries: ToolSearchCatalogEntry[];
+  counterScope: string;
   searchCount: number;
   describeCount: number;
   callCount: number;
diff --git a/src/agents/tool-search.test.ts b/src/agents/tool-search.test.ts
index 357b259ef38f..3042fe5c99f3 100644
--- a/src/agents/tool-search.test.ts
+++ b/src/agents/tool-search.test.ts
@@ -1037,16 +1037,42 @@ describe("Tool Search", () => {
     expect(details.ok).toBe(true);
     const telemetry = details.telemetry as {
       catalogSize?: number;
+      counterScope?: string;
       searchCount?: number;
       describeCount?: number;
       callCount?: number;
     };
     expect(telemetry.catalogSize).toBe(2);
+    expect(telemetry.counterScope).toMatch(/^[A-Za-z0-9_-]{16}$/);
     expect(telemetry.searchCount).toBe(1);
     expect(telemetry.describeCount).toBe(1);
     expect(telemetry.callCount).toBe(1);
   });
 
+  it("changes the telemetry counter scope when a catalog is replaced", async () => {
+    const config = { tools: { toolSearch: true } } as never;
+    const catalogRef = createToolSearchCatalogRef();
+    const codeTool = fakeTool(TOOL_SEARCH_CODE_MODE_TOOL_NAME, "code mode");
+    applyToolSearchCatalog({
+      tools: [codeTool, pluginTool("fake_first", "First capability")],
+      config,
+      catalogRef,
+    });
+    const firstScope = expectDefined(catalogRef.current, "first catalog").counterScope;
+    const runtime = new ToolSearchRuntime({ catalogRef }, resolveToolSearchConfig(config));
+    await runtime.search("fake_first");
+    expect(runtime.telemetry()).toMatchObject({ counterScope: firstScope, searchCount: 1 });
+
+    applyToolSearchCatalog({
+      tools: [codeTool, pluginTool("fake_second", "Second capability")],
+      config,
+      catalogRef,
+    });
+    const replacementScope = expectDefined(catalogRef.current, "second catalog").counterScope;
+    expect(replacementScope).not.toBe(firstScope);
+    expect(runtime.telemetry()).toMatchObject({ counterScope: replacementScope, searchCount: 0 });
+  });
+
   it("scopes catalogs by run id when attempts share a session", async () => {
     // Overlapping run attempts can share a session id; run-scoped catalogs keep
     // one attempt from calling tools only exposed to another.
@@ -1653,6 +1679,10 @@ describe("Tool Search", () => {
       config,
       sessionId: "session-client",
     });
+    const initialScope = expectDefined(
+      testCatalogRefs.get("session:session-client")?.current,
+      "initial client catalog",
+    ).counterScope;
 
     const clientTool = fakeTool("client_pick_file", "Ask the client to pick a file");
     const compacted = addClientToolsToToolSearchCatalog({
@@ -1663,9 +1693,14 @@ describe("Tool Search", () => {
 
     expect(compacted.tools).toEqual([]);
     expect(compacted.catalogToolCount).toBe(1);
-    const clientEntry = testCatalogRefs
-      .get("session:session-client")
-      ?.current?.entries.find((entry) => entry.id === "client:client:client_pick_file");
+    const appendedCatalog = expectDefined(
+      testCatalogRefs.get("session:session-client")?.current,
+      "appended client catalog",
+    );
+    expect(appendedCatalog.counterScope).toBe(initialScope);
+    const clientEntry = appendedCatalog.entries.find(
+      (entry) => entry.id === "client:client:client_pick_file",
+    );
     expect(clientEntry?.source).toBe("client");
 
     const executeTool = vi.fn(async () => jsonResult({ status: "ok" }));
@@ -2540,8 +2575,10 @@ describe("Tool Search", () => {
     expect(first.catalogRegistered).toBe(true);
     expect(first.catalogReused).toBe(false);
 
-    const catalogAfterFirst = testCatalogRefs.get(`session:${sessionId}`)?.current;
-    expect(catalogAfterFirst).toBeDefined();
+    const catalogAfterFirst = expectDefined(
+      testCatalogRefs.get(`session:${sessionId}`)?.current,
+      "initial reusable catalog",
+    );
 
     const second = applyToolSearchCatalog({
       tools: [codeTool, alpha, beta],
@@ -2551,6 +2588,9 @@ describe("Tool Search", () => {
     expect(second.catalogRegistered).toBe(true);
     expect(second.catalogReused).toBe(true);
     expect(testCatalogRefs.get(`session:${sessionId}`)?.current).toBe(catalogAfterFirst);
+    expect(testCatalogRefs.get(`session:${sessionId}`)?.current?.counterScope).toBe(
+      catalogAfterFirst.counterScope,
+    );
 
     const laterRef = createToolSearchCatalogRef();
     const later = applyToolSearchCatalog({
@@ -2562,10 +2602,11 @@ describe("Tool Search", () => {
     });
     expect(later.catalogReused).toBe(true);
     expect(laterRef.current).not.toBe(catalogAfterFirst);
-    expect(laterRef.current?.entries).toBe(catalogAfterFirst?.entries);
+    expect(laterRef.current?.entries).toBe(catalogAfterFirst.entries);
+    expect(laterRef.current?.counterScope).not.toBe(catalogAfterFirst.counterScope);
   });
 
-  it("restores an unchanged catalog after run cleanup", () => {
+  it("restores an unchanged catalog after run cleanup", async () => {
     const codeTool = fakeTool(TOOL_SEARCH_CODE_MODE_TOOL_NAME, "code mode");
     const alpha = pluginTool("fake_xrun_alpha", "Alpha tool");
     const beta = pluginTool("fake_xrun_beta", "Beta tool");
@@ -2581,8 +2622,18 @@ describe("Tool Search", () => {
       catalogRef: firstRef,
     });
     expect(first.catalogReused).toBe(false);
-    const firstAlphaEntry = firstRef.current?.entries.find((entry) => entry.name === alpha.name);
+    const firstCatalog = expectDefined(firstRef.current, "first run catalog");
+    const firstAlphaEntry = firstCatalog.entries.find((entry) => entry.name === alpha.name);
     expect(firstAlphaEntry).toBeDefined();
+    const firstRuntime = new ToolSearchRuntime(
+      { catalogRef: firstRef },
+      resolveToolSearchConfig(config),
+    );
+    await firstRuntime.search(alpha.name);
+    expect(firstRuntime.telemetry()).toMatchObject({
+      counterScope: firstCatalog.counterScope,
+      searchCount: 1,
+    });
 
     clearToolSearchCatalog({
       sessionId,
@@ -2601,10 +2652,12 @@ describe("Tool Search", () => {
     });
     expect(second.catalogRegistered).toBe(true);
     expect(second.catalogReused).toBe(true);
-    expect(secondRef.current).toBeDefined();
-    expect(secondRef.current?.entries.find((entry) => entry.name === alpha.name)).toBe(
+    const restoredCatalog = expectDefined(secondRef.current, "restored run catalog");
+    expect(restoredCatalog.entries.find((entry) => entry.name === alpha.name)).toBe(
       firstAlphaEntry,
     );
+    expect(restoredCatalog.counterScope).not.toBe(firstCatalog.counterScope);
+    expect(restoredCatalog.searchCount).toBe(0);
   });
 
   it("does not retain hook-bound catalogs, including prewrapped tools", () => {