diff --git a/CHANGELOG.md b/CHANGELOG.md
index 962c5f9e491..dfe921fa41b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,6 +15,7 @@ Docs: https://docs.openclaw.ai
 
 ### Fixes
 
+- Telegram/Agents: gate exec/bash tool-failure warnings behind verbose mode so default Telegram replies stay clean while verbose sessions still surface diagnostics. (#20560) Thanks @obviyus.
 - Gateway/Daemon: forward `TMPDIR` into installed service environments so macOS LaunchAgent gateway runs can open SQLite temp/journal files reliably instead of failing with `SQLITE_CANTOPEN`. (#20512) Thanks @Clawborn.
 - Agents/Billing: include the active model that produced a billing error in user-facing billing messages (for example, `OpenAI (gpt-5.3)`) across payload, failover, and lifecycle error paths, so users can identify exactly which key needs credits. (#20510) Thanks @echoVic.
 - iOS/Screen: move `WKWebView` lifecycle ownership into `ScreenWebView` coordinator and explicit attach/detach flow to reduce gesture/lifecycle crash risk (`__NSArrayM insertObject:atIndex:` paths) during screen tab updates. (#20366) Thanks @ngutman.
diff --git a/src/agents/pi-embedded-runner/run/payloads.e2e.test.ts b/src/agents/pi-embedded-runner/run/payloads.e2e.test.ts
index 686b93b9882..06c617663b4 100644
--- a/src/agents/pi-embedded-runner/run/payloads.e2e.test.ts
+++ b/src/agents/pi-embedded-runner/run/payloads.e2e.test.ts
@@ -163,7 +163,7 @@ describe("buildEmbeddedRunPayloads", () => {
     expect(payloads[0]?.text).toBe("All good");
   });
 
-  it("adds tool error fallback when the assistant only invoked tools", () => {
+  it("adds tool error fallback when the assistant only invoked tools and verbose mode is on", () => {
     const payloads = buildPayloads({
       lastAssistant: makeAssistant({
         stopReason: "toolUse",
@@ -178,6 +178,7 @@ describe("buildEmbeddedRunPayloads", () => {
         ],
       }),
       lastToolError: { toolName: "exec", error: "Command exited with code 1" },
+      verboseLevel: "on",
     });
 
     expect(payloads).toHaveLength(1);
diff --git a/src/agents/pi-embedded-runner/run/payloads.test.ts b/src/agents/pi-embedded-runner/run/payloads.test.ts
new file mode 100644
index 00000000000..bc35bb31c72
--- /dev/null
+++ b/src/agents/pi-embedded-runner/run/payloads.test.ts
@@ -0,0 +1,52 @@
+import { describe, expect, it } from "vitest";
+import { buildEmbeddedRunPayloads } from "./payloads.js";
+
+type BuildPayloadParams = Parameters<typeof buildEmbeddedRunPayloads>[0];
+
+function buildPayloads(overrides: Partial<BuildPayloadParams> = {}) {
+  return buildEmbeddedRunPayloads({
+    assistantTexts: [],
+    toolMetas: [],
+    lastAssistant: undefined,
+    sessionKey: "session:telegram",
+    inlineToolResultsAllowed: false,
+    verboseLevel: "off",
+    reasoningLevel: "off",
+    toolResultFormat: "plain",
+    ...overrides,
+  });
+}
+
+describe("buildEmbeddedRunPayloads tool-error warnings", () => {
+  it("suppresses exec tool errors when verbose mode is off", () => {
+    const payloads = buildPayloads({
+      lastToolError: { toolName: "exec", error: "command failed" },
+      verboseLevel: "off",
+    });
+
+    expect(payloads).toHaveLength(0);
+  });
+
+  it("shows exec tool errors when verbose mode is on", () => {
+    const payloads = buildPayloads({
+      lastToolError: { toolName: "exec", error: "command failed" },
+      verboseLevel: "on",
+    });
+
+    expect(payloads).toHaveLength(1);
+    expect(payloads[0]?.isError).toBe(true);
+    expect(payloads[0]?.text).toContain("Exec");
+    expect(payloads[0]?.text).toContain("command failed");
+  });
+
+  it("keeps non-exec mutating tool failures visible", () => {
+    const payloads = buildPayloads({
+      lastToolError: { toolName: "write", error: "permission denied" },
+      verboseLevel: "off",
+    });
+
+    expect(payloads).toHaveLength(1);
+    expect(payloads[0]?.isError).toBe(true);
+    expect(payloads[0]?.text).toContain("Write");
+  });
+});
diff --git a/src/agents/pi-embedded-runner/run/payloads.ts b/src/agents/pi-embedded-runner/run/payloads.ts
index 57e9e393a51..3939e85bdd0 100644
--- a/src/agents/pi-embedded-runner/run/payloads.ts
+++ b/src/agents/pi-embedded-runner/run/payloads.ts
@@ -49,10 +49,16 @@ function shouldShowToolErrorWarning(params: {
   hasUserFacingReply: boolean;
   suppressToolErrors: boolean;
   suppressToolErrorWarnings?: boolean;
+  verboseLevel?: VerboseLevel;
 }): boolean {
   if (params.suppressToolErrorWarnings) {
     return false;
   }
+  const normalizedToolName = params.lastToolError.toolName.trim().toLowerCase();
+  const verboseEnabled = params.verboseLevel === "on" || params.verboseLevel === "full";
+  if ((normalizedToolName === "exec" || normalizedToolName === "bash") && !verboseEnabled) {
+    return false;
+  }
   const isMutatingToolError =
     params.lastToolError.mutatingAction ?? isLikelyMutatingToolName(params.lastToolError.toolName);
   if (isMutatingToolError) {
@@ -255,6 +261,7 @@ export function buildEmbeddedRunPayloads(params: {
       hasUserFacingReply: hasUserFacingAssistantReply,
       suppressToolErrors: Boolean(params.config?.messages?.suppressToolErrors),
       suppressToolErrorWarnings: params.suppressToolErrorWarnings,
+      verboseLevel: params.verboseLevel,
     });
 
     // Always surface mutating tool failures so we do not silently confirm actions that did not happen.
diff --git a/src/agents/pi-embedded-subscribe.tools.test.ts b/src/agents/pi-embedded-subscribe.tools.test.ts
new file mode 100644
index 00000000000..2ab5a09738a
--- /dev/null
+++ b/src/agents/pi-embedded-subscribe.tools.test.ts
@@ -0,0 +1,15 @@
+import { describe, expect, it } from "vitest";
+import { extractToolErrorMessage } from "./pi-embedded-subscribe.tools.js";
+
+describe("extractToolErrorMessage", () => {
+  it("ignores non-error status values", () => {
+    expect(extractToolErrorMessage({ details: { status: "0" } })).toBeUndefined();
+    expect(extractToolErrorMessage({ details: { status: "completed" } })).toBeUndefined();
+    expect(extractToolErrorMessage({ details: { status: "ok" } })).toBeUndefined();
+  });
+
+  it("keeps error-like status values", () => {
+    expect(extractToolErrorMessage({ details: { status: "failed" } })).toBe("failed");
+    expect(extractToolErrorMessage({ details: { status: "timeout" } })).toBe("timeout");
+  });
+});
diff --git a/src/agents/pi-embedded-subscribe.tools.ts b/src/agents/pi-embedded-subscribe.tools.ts
index f37974cc901..55362aa6ea1 100644
--- a/src/agents/pi-embedded-subscribe.tools.ts
+++ b/src/agents/pi-embedded-subscribe.tools.ts
@@ -29,6 +29,23 @@ function normalizeToolErrorText(text: string): string | undefined {
     : firstLine;
 }
 
+function isErrorLikeStatus(status: string): boolean {
+  const normalized = status.trim().toLowerCase();
+  if (!normalized) {
+    return false;
+  }
+  if (
+    normalized === "0" ||
+    normalized === "ok" ||
+    normalized === "success" ||
+    normalized === "completed" ||
+    normalized === "running"
+  ) {
+    return false;
+  }
+  return /error|fail|timeout|timed[_\s-]?out|denied|cancel|invalid|forbidden/.test(normalized);
+}
+
 function readErrorCandidate(value: unknown): string | undefined {
   if (typeof value === "string") {
     return normalizeToolErrorText(value);
@@ -59,7 +76,10 @@ function extractErrorField(value: unknown): string | undefined {
     return direct;
   }
   const status = typeof record.status === "string" ? record.status.trim() : "";
-  return status ? normalizeToolErrorText(status) : undefined;
+  if (!status || !isErrorLikeStatus(status)) {
+    return undefined;
+  }
+  return normalizeToolErrorText(status);
 }
 
 export function sanitizeToolResult(result: unknown): unknown {