diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6b5ec756b..853d39fa2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -16,6 +16,7 @@ Docs: https://docs.clawd.bot
 - CLI: avoid duplicating --profile/--dev flags when formatting commands.
 - Auth: dedupe codex-cli profiles when tokens match custom openai-codex entries. (#1264) — thanks @odrobnik.
 - Agents: avoid misclassifying context-window-too-small errors as context overflow. (#1266) — thanks @humanwritten.
+- Slack: resolve Bolt default-export shapes for monitor startup. (#1208) — thanks @24601.
 
 ## 2026.1.19-3
 
diff --git a/src/gateway/protocol/schema/frames.ts b/src/gateway/protocol/schema/frames.ts
index dfaac1c26..f9cae661c 100644
--- a/src/gateway/protocol/schema/frames.ts
+++ b/src/gateway/protocol/schema/frames.ts
@@ -39,14 +39,16 @@ export const ConnectParamsSchema = Type.Object(
     permissions: Type.Optional(Type.Record(NonEmptyString, Type.Boolean())),
     role: Type.Optional(NonEmptyString),
     scopes: Type.Optional(Type.Array(NonEmptyString)),
-    device: Type.Object(
-      {
-        id: NonEmptyString,
-        publicKey: NonEmptyString,
-        signature: NonEmptyString,
-        signedAt: Type.Integer({ minimum: 0 }),
-      },
-      { additionalProperties: false },
+    device: Type.Optional(
+      Type.Object(
+        {
+          id: NonEmptyString,
+          publicKey: NonEmptyString,
+          signature: NonEmptyString,
+          signedAt: Type.Integer({ minimum: 0 }),
+        },
+        { additionalProperties: false },
+      ),
     ),
     auth: Type.Optional(
       Type.Object(
diff --git a/src/gateway/server.cron.test.ts b/src/gateway/server.cron.test.ts
index ca701e67f..48269cca7 100644
--- a/src/gateway/server.cron.test.ts
+++ b/src/gateway/server.cron.test.ts
@@ -185,6 +185,7 @@ describe("gateway server cron", () => {
   test("accepts jobId for cron.update", async () => {
     const dir = await fs.mkdtemp(path.join(os.tmpdir(), "clawdbot-gw-cron-"));
     testState.cronStorePath = path.join(dir, "cron", "jobs.json");
+    testState.cronEnabled = false;
     await fs.mkdir(path.dirname(testState.cronStorePath), { recursive: true });
     await fs.writeFile(testState.cronStorePath, JSON.stringify({ version: 1, jobs: [] }));
 
@@ -218,6 +219,7 @@ describe("gateway server cron", () => {
     await server.close();
     await rmTempDir(dir);
     testState.cronStorePath = undefined;
+    testState.cronEnabled = undefined;
   });
 
   test("disables cron jobs via enabled:false patches", async () => {
diff --git a/src/slack/monitor/provider.ts b/src/slack/monitor/provider.ts
index 2ff3d9f18..3cdb0f2de 100644
--- a/src/slack/monitor/provider.ts
+++ b/src/slack/monitor/provider.ts
@@ -27,20 +27,21 @@ import { normalizeAllowList } from "./allow-list.js";
 import type { MonitorSlackOpts } from "./types.js";
 
 type SlackBoltNamespace = typeof import("@slack/bolt");
+type SlackBoltDefault = SlackBoltNamespace | SlackBoltNamespace["App"];
 
-const slackBoltDefault = SlackBoltDefault as unknown;
+const slackBoltDefaultImport = SlackBoltDefault as SlackBoltDefault | undefined;
+const slackBoltModuleDefault = (SlackBoltModule as { default?: SlackBoltDefault }).default;
+const slackBoltDefault = slackBoltDefaultImport ?? slackBoltModuleDefault;
 const slackBoltNamespace =
-  (typeof slackBoltDefault === "object" && slackBoltDefault
-    ? ("default" in slackBoltDefault
-        ? (slackBoltDefault as { default?: unknown }).default
-        : slackBoltDefault)
-    : undefined) as SlackBoltNamespace | undefined;
+  typeof slackBoltDefault === "object" && slackBoltDefault
+    ? (slackBoltDefault as SlackBoltNamespace)
+    : typeof slackBoltModuleDefault === "object" && slackBoltModuleDefault
+      ? (slackBoltModuleDefault as SlackBoltNamespace)
+      : undefined;
 // Bun allows named imports from CJS; Node ESM doesn't. Resolve default/module shapes for compatibility.
-const App =
-  ((typeof slackBoltDefault === "function"
-    ? slackBoltDefault
-    : slackBoltNamespace?.App) ??
-    SlackBoltModule.App) as SlackBoltNamespace["App"];
+const App = ((typeof slackBoltDefault === "function" ? slackBoltDefault : undefined) ??
+  slackBoltNamespace?.App ??
+  SlackBoltModule.App) as SlackBoltNamespace["App"];
 const HTTPReceiver = (slackBoltNamespace?.HTTPReceiver ??
   SlackBoltModule.HTTPReceiver) as SlackBoltNamespace["HTTPReceiver"];
 function parseApiAppIdFromAppToken(raw?: string) {
@@ -132,6 +133,13 @@ export async function monitorSlackProvider(opts: MonitorSlackOpts = {}) {
   const mediaMaxBytes = (opts.mediaMaxMb ?? slackCfg.mediaMaxMb ?? 20) * 1024 * 1024;
   const removeAckAfterReply = cfg.messages?.removeAckAfterReply ?? false;
 
+  if (!App) {
+    throw new Error("Slack Bolt App export missing; check @slack/bolt installation.");
+  }
+  if (slackMode === "http" && !HTTPReceiver) {
+    throw new Error("Slack Bolt HTTPReceiver export missing; check @slack/bolt installation.");
+  }
+
   const receiver =
     slackMode === "http"
       ? new HTTPReceiver({