diff --git a/src/cli/plugins-install-command.ts b/src/cli/plugins-install-command.ts
index 64b549bf4ea1..e36c9a39080f 100644
--- a/src/cli/plugins-install-command.ts
+++ b/src/cli/plugins-install-command.ts
@@ -540,6 +540,11 @@ async function loadConfigFromSnapshotForInstall(
   for (const mutation of await collectChannelDoctorStaleConfigMutations(snapshot.config, {
     env: process.env,
   })) {
+    if (mutation.warnings?.length) {
+      throw buildInvalidPluginInstallConfigError(
+        `${mutation.warnings.join("\n")} Run \`openclaw doctor --fix\` before reinstalling plugins.`,
+      );
+    }
     nextConfig = mutation.config;
   }
   return {
diff --git a/src/cli/plugins-install-config.test.ts b/src/cli/plugins-install-config.test.ts
index 249d9d125725..78e38936237b 100644
--- a/src/cli/plugins-install-config.test.ts
+++ b/src/cli/plugins-install-config.test.ts
@@ -238,6 +238,33 @@ describe("loadConfigForInstall", () => {
     expect(result.config).toBe(snapshotCfg);
   });
 
+  it("rejects plugin install recovery when stale channel cleanup reports warnings", async () => {
+    const snapshotCfg = {
+      plugins: { installs: { discord: { source: "path", installPath: "/gone" } } },
+    } as unknown as OpenClawConfig;
+    readConfigFileSnapshotMock.mockResolvedValue(
+      makeSnapshot({
+        parsed: { plugins: { installs: { discord: {} } } },
+        config: snapshotCfg,
+        issues: [
+          { path: "channels.discord", message: "unknown channel id: discord" },
+          { path: "plugins.load.paths", message: "plugin: plugin path not found: /gone" },
+        ],
+      }),
+    );
+    collectChannelDoctorStaleConfigMutationsMock.mockResolvedValueOnce([
+      {
+        changes: [],
+        config: snapshotCfg,
+        warnings: ["- channels.discord: channel stale cleanup failed."],
+      },
+    ]);
+
+    await expect(loadConfigForInstall(discordNpmRequest)).rejects.toThrow(
+      "channels.discord: channel stale cleanup failed",
+    );
+  });
+
   it("rejects unrelated invalid config even during bundled-plugin reinstall recovery", async () => {
     readConfigFileSnapshotMock.mockResolvedValue(
       makeSnapshot({
diff --git a/src/commands/doctor-config-flow.test.ts b/src/commands/doctor-config-flow.test.ts
index 5be6684c699a..dd7a5ec9c172 100644
--- a/src/commands/doctor-config-flow.test.ts
+++ b/src/commands/doctor-config-flow.test.ts
@@ -1523,6 +1523,29 @@ describe("doctor config flow", () => {
     });
   });
 
+  it("emits warning-only channel stale cleanup diagnostics", async () => {
+    const channelDoctor = await import("./doctor/shared/channel-doctor.js");
+    vi.mocked(channelDoctor.collectChannelDoctorStaleConfigMutations).mockResolvedValueOnce([
+      {
+        changes: [],
+        config: {
+          channels: {
+            matrix: {},
+          },
+        },
+        warnings: ["- channels.matrix: channel stale cleanup failed."],
+      },
+    ]);
+
+    const warnings = await collectDoctorWarnings({
+      channels: {
+        matrix: {},
+      },
+    });
+
+    expect(warnings).toContain("- channels.matrix: channel stale cleanup failed.");
+  });
+
   it("reloads gateway secrets and refreshes auth status after auth profile repairs", async () => {
     runDoctorRepairSequenceMock.mockImplementation(async (params: { state: unknown }) => ({
       state: params.state,
diff --git a/src/commands/doctor-config-flow.ts b/src/commands/doctor-config-flow.ts
index 2a504f485977..35dd70a8119e 100644
--- a/src/commands/doctor-config-flow.ts
+++ b/src/commands/doctor-config-flow.ts
@@ -239,6 +239,10 @@ export async function loadAndMaybeMigrateDoctorConfig(params: {
       candidate,
       { env: process.env },
     )) {
+      emitDoctorNotes({
+        note,
+        warningNotes: staleCleanup.warnings,
+      });
       if (staleCleanup.changes.length === 0) {
         continue;
       }
diff --git a/src/commands/doctor/shared/channel-doctor.test.ts b/src/commands/doctor/shared/channel-doctor.test.ts
index 1d067f0ec98c..cc884e72dcc0 100644
--- a/src/commands/doctor/shared/channel-doctor.test.ts
+++ b/src/commands/doctor/shared/channel-doctor.test.ts
@@ -3,8 +3,11 @@ import {
   collectChannelDoctorCompatibilityMutations,
   collectChannelDoctorEmptyAllowlistExtraWarnings,
   collectChannelDoctorMutableAllowlistWarnings,
+  collectChannelDoctorPreviewWarnings,
+  collectChannelDoctorRepairMutations,
   collectChannelDoctorStaleConfigMutations,
   createChannelDoctorEmptyAllowlistPolicyHooks,
+  runChannelDoctorConfigSequences,
 } from "./channel-doctor.js";
 
 const mocks = vi.hoisted(() => ({
@@ -386,4 +389,145 @@ describe("channel doctor compatibility mutations", () => {
     expect(collectEmptyAllowlistExtraWarnings).toHaveBeenCalledTimes(3);
     expect(shouldSkipDefaultEmptyGroupAllowlistWarning).toHaveBeenCalledTimes(1);
   });
+
+  it("reports throwing empty allowlist doctor extra-warning hooks", () => {
+    const collectEmptyAllowlistExtraWarnings = vi.fn(() => {
+      throw new Error("channel doctor extra hook exploded");
+    });
+    const shouldSkipDefaultEmptyGroupAllowlistWarning = vi.fn(() => {
+      throw new Error("channel doctor skip hook exploded");
+    });
+    const cfg = createMatrixEnabledConfig();
+    mockReadOnlyMatrixPlugin({
+      collectEmptyAllowlistExtraWarnings,
+      shouldSkipDefaultEmptyGroupAllowlistWarning,
+    });
+
+    const hooks = createChannelDoctorEmptyAllowlistPolicyHooks({ cfg: cfg as never });
+
+    expect(
+      hooks.extraWarningsForAccount({
+        account: {},
+        channelName: "matrix",
+        prefix: "channels.matrix",
+      }),
+    ).toEqual([
+      "- channels.matrix: channel plugin doctor hook collectEmptyAllowlistExtraWarnings failed (channel doctor extra hook exploded). Fix or disable this channel plugin before relying on channel doctor diagnostics.",
+    ]);
+    expect(
+      hooks.shouldSkipDefaultEmptyGroupAllowlistWarning({
+        account: {},
+        channelName: "matrix",
+        prefix: "channels.matrix",
+      }),
+    ).toBe(false);
+  });
+
+  it("keeps healthy preview warnings when another channel doctor hook throws", async () => {
+    const collectPreviewWarnings = vi.fn(() => {
+      throw new Error("channel doctor preview hook exploded");
+    });
+    mocks.resolveReadOnlyChannelPluginsForConfig.mockReturnValue({
+      plugins: [
+        {
+          id: "matrix",
+          doctor: {
+            collectPreviewWarnings,
+          },
+        },
+        {
+          id: "slack",
+          doctor: {
+            collectPreviewWarnings: () => ["slack preview warning"],
+          },
+        },
+      ],
+    });
+
+    const warnings = await collectChannelDoctorPreviewWarnings({
+      cfg: {
+        channels: {
+          matrix: {},
+          slack: {},
+        },
+      } as never,
+      doctorFixCommand: "openclaw doctor --fix",
+    });
+
+    expect(warnings).toEqual([
+      "- channels.matrix: channel plugin doctor hook collectPreviewWarnings failed (channel doctor preview hook exploded). Fix or disable this channel plugin before relying on channel doctor diagnostics.",
+      "slack preview warning",
+    ]);
+  });
+
+  it("reports throwing channel doctor repair and mutation hooks", async () => {
+    const cfg = createMatrixEnabledConfig();
+    mockReadOnlyMatrixPlugin({
+      cleanStaleConfig: () => {
+        throw new Error("channel doctor stale hook exploded");
+      },
+      collectMutableAllowlistWarnings: () => {
+        throw new Error("channel doctor mutable hook exploded");
+      },
+      normalizeCompatibilityConfig: () => {
+        throw new Error("channel doctor compat hook exploded");
+      },
+      repairConfig: () => {
+        throw new Error("channel doctor repair hook exploded");
+      },
+      runConfigSequence: () => {
+        throw new Error("channel doctor sequence hook exploded");
+      },
+    });
+
+    expect(collectChannelDoctorCompatibilityMutations(cfg as never)).toEqual([
+      {
+        changes: [],
+        config: cfg,
+        warnings: [
+          "- channels.matrix: channel plugin doctor hook normalizeCompatibilityConfig failed (channel doctor compat hook exploded). Fix or disable this channel plugin before relying on channel doctor diagnostics.",
+        ],
+      },
+    ]);
+    await expect(collectChannelDoctorStaleConfigMutations(cfg as never)).resolves.toEqual([
+      {
+        changes: [],
+        config: cfg,
+        warnings: [
+          "- channels.matrix: channel plugin doctor hook cleanStaleConfig failed (channel doctor stale hook exploded). Fix or disable this channel plugin before relying on channel doctor diagnostics.",
+        ],
+      },
+    ]);
+    await expect(
+      collectChannelDoctorMutableAllowlistWarnings({ cfg: cfg as never }),
+    ).resolves.toEqual([
+      "- channels.matrix: channel plugin doctor hook collectMutableAllowlistWarnings failed (channel doctor mutable hook exploded). Fix or disable this channel plugin before relying on channel doctor diagnostics.",
+    ]);
+    await expect(
+      runChannelDoctorConfigSequences({
+        cfg: cfg as never,
+        env: {},
+        shouldRepair: false,
+      }),
+    ).resolves.toEqual({
+      changeNotes: [],
+      warningNotes: [
+        "- channels.matrix: channel plugin doctor hook runConfigSequence failed (channel doctor sequence hook exploded). Fix or disable this channel plugin before relying on channel doctor diagnostics.",
+      ],
+    });
+    await expect(
+      collectChannelDoctorRepairMutations({
+        cfg: cfg as never,
+        doctorFixCommand: "openclaw doctor --fix",
+      }),
+    ).resolves.toEqual([
+      {
+        changes: [],
+        config: cfg,
+        warnings: [
+          "- channels.matrix: channel plugin doctor hook repairConfig failed (channel doctor repair hook exploded). Fix or disable this channel plugin before relying on channel doctor diagnostics.",
+        ],
+      },
+    ]);
+  });
 });
diff --git a/src/commands/doctor/shared/channel-doctor.ts b/src/commands/doctor/shared/channel-doctor.ts
index ab1d3642c4f9..693cfb13be65 100644
--- a/src/commands/doctor/shared/channel-doctor.ts
+++ b/src/commands/doctor/shared/channel-doctor.ts
@@ -1,4 +1,5 @@
 import { normalizeOptionalLowercaseString } from "@openclaw/normalization-core/string-coerce";
+import { sanitizeForLog } from "../../../../packages/terminal-core/src/ansi.js";
 import {
   getBundledChannelPlugin,
   getBundledChannelSetupPlugin,
@@ -12,8 +13,10 @@ import type {
   ChannelDoctorSequenceResult,
 } from "../../../channels/plugins/types.adapters.js";
 import type { OpenClawConfig } from "../../../config/types.openclaw.js";
+import { formatErrorMessage } from "../../../infra/errors.js";
 
 type ChannelDoctorEntry = {
+  id: string;
   doctor: ChannelDoctorAdapter;
 };
 
@@ -223,11 +226,21 @@ function listChannelDoctorEntries(
     if (!doctor) {
       continue;
     }
-    entries.push({ doctor });
+    entries.push({ doctor, id });
   }
   return entries;
 }
 
+function formatChannelDoctorHookFailure(params: {
+  channelId: string;
+  error: unknown;
+  hookName: keyof ChannelDoctorAdapter;
+}): string {
+  return sanitizeForLog(
+    `- channels.${params.channelId}: channel plugin doctor hook ${params.hookName} failed (${formatErrorMessage(params.error)}). Fix or disable this channel plugin before relying on channel doctor diagnostics.`,
+  );
+}
+
 function toPluginEmptyAllowlistContext({
   cfg: _cfg,
   ...params
@@ -242,7 +255,19 @@ function collectEmptyAllowlistExtraWarningsForEntries(
   const warnings: string[] = [];
   const pluginParams = toPluginEmptyAllowlistContext(params);
   for (const entry of entries) {
-    const lines = entry.doctor.collectEmptyAllowlistExtraWarnings?.(pluginParams);
+    let lines: string[] | undefined;
+    try {
+      lines = entry.doctor.collectEmptyAllowlistExtraWarnings?.(pluginParams);
+    } catch (error) {
+      warnings.push(
+        formatChannelDoctorHookFailure({
+          channelId: entry.id,
+          error,
+          hookName: "collectEmptyAllowlistExtraWarnings",
+        }),
+      );
+      continue;
+    }
     if (lines?.length) {
       warnings.push(...lines);
     }
@@ -255,9 +280,16 @@ function shouldSkipDefaultEmptyGroupAllowlistWarningForEntries(
   params: ChannelDoctorEmptyAllowlistLookupParams,
 ): boolean {
   const pluginParams = toPluginEmptyAllowlistContext(params);
-  return entries.some(
-    (entry) => entry.doctor.shouldSkipDefaultEmptyGroupAllowlistWarning?.(pluginParams) === true,
-  );
+  for (const entry of entries) {
+    try {
+      if (entry.doctor.shouldSkipDefaultEmptyGroupAllowlistWarning?.(pluginParams) === true) {
+        return true;
+      }
+    } catch {
+      // A bad plugin doctor hook must not suppress the core empty-allowlist warning.
+    }
+  }
+  return false;
 }
 
 export function createChannelDoctorEmptyAllowlistPolicyHooks(
@@ -296,7 +328,19 @@ export async function runChannelDoctorConfigSequences(params: {
     cfg: params.cfg,
     env: params.env,
   })) {
-    const result = await entry.doctor.runConfigSequence?.(params);
+    let result: ChannelDoctorSequenceResult | undefined;
+    try {
+      result = await entry.doctor.runConfigSequence?.(params);
+    } catch (error) {
+      warningNotes.push(
+        formatChannelDoctorHookFailure({
+          channelId: entry.id,
+          error,
+          hookName: "runConfigSequence",
+        }),
+      );
+      continue;
+    }
     if (!result) {
       continue;
     }
@@ -317,7 +361,23 @@ export function collectChannelDoctorCompatibilityMutations(
   const mutations: ChannelDoctorConfigMutation[] = [];
   let nextCfg = cfg;
   for (const entry of listChannelDoctorEntries(channelIds, { cfg, env: options.env })) {
-    const mutation = entry.doctor.normalizeCompatibilityConfig?.({ cfg: nextCfg });
+    let mutation: ChannelDoctorConfigMutation | undefined;
+    try {
+      mutation = entry.doctor.normalizeCompatibilityConfig?.({ cfg: nextCfg });
+    } catch (error) {
+      mutations.push({
+        config: nextCfg,
+        changes: [],
+        warnings: [
+          formatChannelDoctorHookFailure({
+            channelId: entry.id,
+            error,
+            hookName: "normalizeCompatibilityConfig",
+          }),
+        ],
+      });
+      continue;
+    }
     if (!mutation || mutation.changes.length === 0) {
       continue;
     }
@@ -337,7 +397,23 @@ export async function collectChannelDoctorStaleConfigMutations(
     cfg,
     env: options.env,
   })) {
-    const mutation = await entry.doctor.cleanStaleConfig?.({ cfg: nextCfg });
+    let mutation: ChannelDoctorConfigMutation | undefined;
+    try {
+      mutation = await entry.doctor.cleanStaleConfig?.({ cfg: nextCfg });
+    } catch (error) {
+      mutations.push({
+        config: nextCfg,
+        changes: [],
+        warnings: [
+          formatChannelDoctorHookFailure({
+            channelId: entry.id,
+            error,
+            hookName: "cleanStaleConfig",
+          }),
+        ],
+      });
+      continue;
+    }
     if (!mutation || mutation.changes.length === 0) {
       continue;
     }
@@ -357,7 +433,19 @@ export async function collectChannelDoctorPreviewWarnings(params: {
     cfg: params.cfg,
     env: params.env,
   })) {
-    const lines = await entry.doctor.collectPreviewWarnings?.(params);
+    let lines: string[] | undefined;
+    try {
+      lines = await entry.doctor.collectPreviewWarnings?.(params);
+    } catch (error) {
+      warnings.push(
+        formatChannelDoctorHookFailure({
+          channelId: entry.id,
+          error,
+          hookName: "collectPreviewWarnings",
+        }),
+      );
+      continue;
+    }
     if (lines?.length) {
       warnings.push(...lines);
     }
@@ -374,7 +462,19 @@ export async function collectChannelDoctorMutableAllowlistWarnings(params: {
     cfg: params.cfg,
     env: params.env,
   })) {
-    const lines = await entry.doctor.collectMutableAllowlistWarnings?.(params);
+    let lines: string[] | undefined;
+    try {
+      lines = await entry.doctor.collectMutableAllowlistWarnings?.(params);
+    } catch (error) {
+      warnings.push(
+        formatChannelDoctorHookFailure({
+          channelId: entry.id,
+          error,
+          hookName: "collectMutableAllowlistWarnings",
+        }),
+      );
+      continue;
+    }
     if (lines?.length) {
       warnings.push(...lines);
     }
@@ -393,10 +493,26 @@ export async function collectChannelDoctorRepairMutations(params: {
     cfg: params.cfg,
     env: params.env,
   })) {
-    const mutation = await entry.doctor.repairConfig?.({
-      cfg: nextCfg,
-      doctorFixCommand: params.doctorFixCommand,
-    });
+    let mutation: ChannelDoctorConfigMutation | undefined;
+    try {
+      mutation = await entry.doctor.repairConfig?.({
+        cfg: nextCfg,
+        doctorFixCommand: params.doctorFixCommand,
+      });
+    } catch (error) {
+      mutations.push({
+        config: nextCfg,
+        changes: [],
+        warnings: [
+          formatChannelDoctorHookFailure({
+            channelId: entry.id,
+            error,
+            hookName: "repairConfig",
+          }),
+        ],
+      });
+      continue;
+    }
     if (!mutation || mutation.changes.length === 0) {
       if (mutation?.warnings?.length) {
         mutations.push({ config: nextCfg, changes: [], warnings: mutation.warnings });