diff --git a/src/app-server/client.ts b/src/app-server/client.ts
index 0e801c8b..277bbffd 100644
--- a/src/app-server/client.ts
+++ b/src/app-server/client.ts
@@ -386,7 +386,7 @@ export class AppServerClient {
     }
 
     if ("id" in message && "method" in message) {
-      this.handlers.onServerRequest(message as ServerRequest);
+      this.handlers.onServerRequest(message);
       return;
     }
 
@@ -407,7 +407,7 @@ export class AppServerClient {
     }
 
     if ("method" in message) {
-      this.handlers.onNotification(message as ServerNotification);
+      this.handlers.onNotification(message);
     }
   }
 
diff --git a/src/display/model.ts b/src/display/model.ts
index 14eeb8ad..8f92aecb 100644
--- a/src/display/model.ts
+++ b/src/display/model.ts
@@ -636,7 +636,7 @@ export function appendToolOutput(
   if (index !== -1) {
     return items.map((item, itemIndex) =>
       itemIndex === index && (item.kind === "tool" || item.kind === "hook" || item.kind === "reasoning")
-        ? ({ ...item, output: `${item.output ?? ""}${delta}` } as DisplayItem)
+        ? { ...item, output: `${item.output ?? ""}${delta}` }
         : item,
     );
   }
@@ -667,7 +667,7 @@ export function appendItemOutput(
   if (index !== -1) {
     return items.map((item, itemIndex) =>
       itemIndex === index && (item.kind === "command" || item.kind === "fileChange")
-        ? ({ ...item, output: `${item.output ?? ""}${delta}` } as DisplayItem)
+        ? { ...item, output: `${item.output ?? ""}${delta}` }
         : item,
     );
   }
diff --git a/src/display/state.ts b/src/display/state.ts
index 296896e9..ee31aa87 100644
--- a/src/display/state.ts
+++ b/src/display/state.ts
@@ -19,10 +19,7 @@ export function executionState(item: DisplayItem): ExecutionState {
 export function classifyExecutionState(input: { exitCode?: number; status?: unknown }): ExecutionState {
   if (typeof input.exitCode === "number" && input.exitCode !== 0) return "failed";
 
-  const statusText = [input.status]
-    .filter((value) => value !== null && value !== undefined)
-    .join(" ")
-    .toLowerCase();
+  const statusText = typeof input.status === "string" ? input.status.toLowerCase() : "";
 
   if (/(fail|error|errored|notfound|not_found|missing|denied|declin|cancel|reject|aborted)/.test(statusText)) return "failed";
   if (/(running|in[_ -]?progress|queued|pending|started)/.test(statusText)) return "running";
diff --git a/src/settings-tab.ts b/src/settings-tab.ts
index f11d89f3..2a74e15a 100644
--- a/src/settings-tab.ts
+++ b/src/settings-tab.ts
@@ -141,7 +141,7 @@ export class CodexPanelSettingTab extends PluginSettingTab {
       .setClass("codex-panel-settings__dynamic-section-heading")
       .setHeading()
       .setName("Archived thread list")
-      .setDesc("Restore archived Codex threads to Chat History when they are needed again.");
+      .setDesc("Restore archived Codex threads to chat history when they are needed again.");
 
     if (this.archivedThreadsLoading) {
       archivedSection.createEl("p", {