diff --git a/src/commands/issue/plan.ts b/src/commands/issue/plan.ts
index 7ce8959f6..203d200fc 100644
--- a/src/commands/issue/plan.ts
+++ b/src/commands/issue/plan.ts
@@ -8,7 +8,7 @@
 import type { SentryContext } from "../../context.js";
 import { triggerSolutionPlanning } from "../../lib/api-client.js";
 import { buildCommand } from "../../lib/command.js";
-import { ApiError } from "../../lib/errors.js";
+import { ApiError, CliError } from "../../lib/errors.js";
 import { CommandOutput } from "../../lib/formatters/output.js";
 import {
   formatSolution,
@@ -216,6 +216,15 @@ export const planCommand = buildCommand({
         json: flags.json,
       });
 
+      // Root cause analysis requires user input in the Sentry UI before
+      // solution planning can proceed (e.g. selecting a root cause).
+      if (state.status === "WAITING_FOR_USER_RESPONSE") {
+        throw new CliError(
+          "Root cause analysis requires your input before a plan can be generated.\n" +
+            "Open the issue in Sentry to select a root cause, then re-run this command."
+        );
+      }
+
       // Check if solution already exists (skip if --force)
       if (!flags.force) {
         const existingSolution = extractSolution(state);
@@ -260,6 +269,13 @@ export const planCommand = buildCommand({
         throw new Error("Plan creation was cancelled.");
       }
 
+      if (finalState.status === "WAITING_FOR_USER_RESPONSE") {
+        throw new CliError(
+          "Plan creation requires your input in the Sentry UI.\n" +
+            "Open the issue in Sentry to provide the requested information, then re-run this command."
+        );
+      }
+
       return yield new CommandOutput(buildPlanData(finalState));
     } catch (error) {
       if (error instanceof ApiError) {
diff --git a/src/commands/monitor/list.ts b/src/commands/monitor/list.ts
index bde6b5dda..07ee4a230 100644
--- a/src/commands/monitor/list.ts
+++ b/src/commands/monitor/list.ts
@@ -41,6 +41,9 @@ function formatSchedule(monitor: MonitorWithOrg): string {
     return "";
   }
   if (Array.isArray(config.schedule)) {
+    if (config.schedule.length < 2) {
+      return String(config.schedule[0] ?? "");
+    }
     return `every ${config.schedule[0]} ${config.schedule[1]}`;
   }
   return config.schedule;
diff --git a/src/lib/api/seer.ts b/src/lib/api/seer.ts
index d0437f473..7de74fdd5 100644
--- a/src/lib/api/seer.ts
+++ b/src/lib/api/seer.ts
@@ -28,7 +28,10 @@ const EXPLORER_MODE_PARAMS = { mode: "explorer" };
  * returns false and polling spins until timeout. `awaiting_user_input` maps to
  * `WAITING_FOR_USER_RESPONSE`.
  */
-function normalizeAgentStatus(status: string): string {
+function normalizeAgentStatus(status: string | null | undefined): string {
+  if (!status) {
+    return "PROCESSING";
+  }
   switch (status) {
     case "processing":
       return "PROCESSING";