diff --git a/src/commands/doctor/shared/preview-warnings.test.ts b/src/commands/doctor/shared/preview-warnings.test.ts
index f9d4907d7112..0546a630b5e0 100644
--- a/src/commands/doctor/shared/preview-warnings.test.ts
+++ b/src/commands/doctor/shared/preview-warnings.test.ts
@@ -1006,6 +1006,43 @@ describe("doctor preview warnings", () => {
     expect(warnings).toStrictEqual([]);
   });
 
+  it("does not warn for configured tool sections when the profile id is unknown", () => {
+    const malformedConfig = {
+      tools: {
+        profile: "custom-profile",
+        exec: {
+          security: "allowlist",
+        },
+        byProvider: {
+          openai: {
+            profile: "custom-provider-profile",
+          },
+        },
+      },
+      agents: {
+        list: [
+          {
+            id: "sage",
+            tools: {
+              exec: {
+                security: "allowlist",
+              },
+              byProvider: {
+                openai: {
+                  profile: "custom-agent-provider-profile",
+                },
+              },
+            },
+          },
+        ],
+      },
+    } as unknown as Parameters<typeof collectProfileConfiguredToolSectionWarnings>[0];
+
+    const warnings = collectProfileConfiguredToolSectionWarnings(malformedConfig);
+
+    expect(warnings).toStrictEqual([]);
+  });
+
   it("does not warn when default group visible replies are automatic", () => {
     const warnings = collectVisibleReplyToolPolicyWarnings({
       channels: {
diff --git a/src/commands/doctor/shared/preview-warnings.ts b/src/commands/doctor/shared/preview-warnings.ts
index 0ad329917393..857099b9a86c 100644
--- a/src/commands/doctor/shared/preview-warnings.ts
+++ b/src/commands/doctor/shared/preview-warnings.ts
@@ -403,6 +403,9 @@ function collectProfileConfiguredToolSectionScopeWarnings(params: {
     ? tools.alsoAllow.filter((entry): entry is string => typeof entry === "string")
     : params.inheritedAlsoAllow;
   const profilePolicy = mergeAlsoAllowPolicy(resolveToolProfilePolicy(profile), alsoAllow);
+  if (!profilePolicy) {
+    return [];
+  }
   const uncoveredEntries = collectUncoveredConfiguredToolSectionGrantEntries(
     configuredEntries,
     profilePolicy,
@@ -454,6 +457,9 @@ function collectByProviderConfiguredToolSectionWarnings(params: {
     const alsoAllow =
       readPreviewStringList(policy.alsoAllow) ?? readPreviewStringList(inheritedPolicy?.alsoAllow);
     const profilePolicy = mergeAlsoAllowPolicy(resolveToolProfilePolicy(profile), alsoAllow);
+    if (!profilePolicy) {
+      return [];
+    }
     const uncoveredEntries = collectUncoveredConfiguredToolSectionGrantEntries(
       params.configuredEntries,
       profilePolicy,
@@ -560,6 +566,9 @@ function collectInheritedByProviderConfiguredToolSectionWarnings(params: {
       readPreviewStringList(overridingPolicy?.alsoAllow) ??
       readPreviewStringList(inheritedPolicy.alsoAllow);
     const profilePolicy = mergeAlsoAllowPolicy(resolveToolProfilePolicy(profile), alsoAllow);
+    if (!profilePolicy) {
+      return [];
+    }
     const uncoveredEntries = collectUncoveredConfiguredToolSectionGrantEntries(
       params.configuredEntries,
       profilePolicy,