diff --git a/src/agents/system-prompt.e2e.test.ts b/src/agents/system-prompt.e2e.test.ts
index 3d9ad4361a6..fa6d4de6563 100644
--- a/src/agents/system-prompt.e2e.test.ts
+++ b/src/agents/system-prompt.e2e.test.ts
@@ -1,11 +1,19 @@
 import { describe, expect, it } from "vitest";
 import { SILENT_REPLY_TOKEN } from "../auto-reply/tokens.js";
+import { typedCases } from "../test-utils/typed-cases.js";
 import { buildSubagentSystemPrompt } from "./subagent-announce.js";
 import { buildAgentSystemPrompt, buildRuntimeLine } from "./system-prompt.js";
 
 describe("buildAgentSystemPrompt", () => {
   it("formats owner section for plain, hash, and missing owner lists", () => {
-    const cases = [
+    const cases = typedCases<{
+      name: string;
+      params: Parameters<typeof buildAgentSystemPrompt>[0];
+      expectAuthorizedSection: boolean;
+      contains: string[];
+      notContains: string[];
+      hashMatch?: RegExp;
+    }>([
       {
         name: "plain owner numbers",
         params: {
@@ -16,14 +24,14 @@ describe("buildAgentSystemPrompt", () => {
         contains: [
           "Authorized senders: +123, +456. These senders are allowlisted; do not assume they are the owner.",
         ],
-        notContains: [] as string[],
+        notContains: [],
       },
       {
         name: "hashed owner numbers",
         params: {
           workspaceDir: "/tmp/openclaw",
           ownerNumbers: ["+123", "+456", ""],
-          ownerDisplay: "hash" as const,
+          ownerDisplay: "hash",
         },
         expectAuthorizedSection: true,
         contains: ["Authorized senders:"],
@@ -36,10 +44,10 @@ describe("buildAgentSystemPrompt", () => {
           workspaceDir: "/tmp/openclaw",
         },
         expectAuthorizedSection: false,
-        contains: [] as string[],
+        contains: [],
         notContains: ["## Authorized Senders", "Authorized senders:"],
       },
-    ] as const;
+    ]);
 
     for (const testCase of cases) {
       const prompt = buildAgentSystemPrompt(testCase.params);
diff --git a/src/auto-reply/reply/commands.test.ts b/src/auto-reply/reply/commands.test.ts
index 7c957576df9..9a017f05761 100644
--- a/src/auto-reply/reply/commands.test.ts
+++ b/src/auto-reply/reply/commands.test.ts
@@ -12,6 +12,7 @@ import type { OpenClawConfig } from "../../config/config.js";
 import { updateSessionStore } from "../../config/sessions.js";
 import * as internalHooks from "../../hooks/internal-hooks.js";
 import { clearPluginCommands, registerPluginCommand } from "../../plugins/commands.js";
+import { typedCases } from "../../test-utils/typed-cases.js";
 import type { MsgContext } from "../templating.js";
 import { resetBashChatCommandForTests } from "./bash-command.js";
 import { handleCompactCommand } from "./commands-compact.js";
@@ -138,7 +139,12 @@ function buildParams(commandBody: string, cfg: OpenClawConfig, ctxOverrides?: Pa
 describe("handleCommands gating", () => {
   it("blocks /bash when disabled or not elevated-allowlisted", async () => {
     resetBashChatCommandForTests();
-    const cases = [
+    const cases = typedCases<{
+      name: string;
+      cfg: OpenClawConfig;
+      applyParams?: (params: ReturnType<typeof buildParams>) => void;
+      expectedText: string;
+    }>([
       {
         name: "disabled bash command",
         cfg: {
@@ -162,7 +168,7 @@ describe("handleCommands gating", () => {
         },
         expectedText: "elevated is not available",
       },
-    ] as const;
+    ]);
     for (const testCase of cases) {
       const params = buildParams("/bash echo hi", testCase.cfg);
       testCase.applyParams?.(params);
diff --git a/src/channels/channel-config.test.ts b/src/channels/channel-config.test.ts
index 317759052c1..38b80332f63 100644
--- a/src/channels/channel-config.test.ts
+++ b/src/channels/channel-config.test.ts
@@ -1,5 +1,6 @@
 import { describe, expect, it } from "vitest";
 import type { MsgContext } from "../auto-reply/templating.js";
+import { typedCases } from "../test-utils/typed-cases.js";
 import {
   type ChannelMatchSource,
   buildChannelKeyCandidates,
@@ -42,7 +43,18 @@ describe("resolveChannelEntryMatch", () => {
 });
 
 describe("resolveChannelEntryMatchWithFallback", () => {
-  const fallbackCases = [
+  const fallbackCases = typedCases<{
+    name: string;
+    entries: Record<string, { allow: boolean }>;
+    args: {
+      keys: string[];
+      parentKeys?: string[];
+      wildcardKey?: string;
+    };
+    expectedEntryKey: string;
+    expectedSource: ChannelMatchSource;
+    expectedMatchKey: string;
+  }>([
     {
       name: "prefers direct matches over parent and wildcard",
       entries: { a: { allow: true }, parent: { allow: false }, "*": { allow: false } },
@@ -67,7 +79,7 @@ describe("resolveChannelEntryMatchWithFallback", () => {
       expectedSource: "wildcard",
       expectedMatchKey: "*",
     },
-  ] as const;
+  ]);
 
   for (const testCase of fallbackCases) {
     it(testCase.name, () => {
diff --git a/ui/src/ui/views/chat.test.ts b/ui/src/ui/views/chat.test.ts
index 8a0a8c1a864..e693cfef613 100644
--- a/ui/src/ui/views/chat.test.ts
+++ b/ui/src/ui/views/chat.test.ts
@@ -51,7 +51,14 @@ function createProps(overrides: Partial<ChatProps> = {}): ChatProps {
 
 describe("chat view", () => {
   it("renders/hides compaction and fallback indicators across recency states", () => {
-    const cases = [
+    const cases: Array<{
+      name: string;
+      nowMs?: number;
+      props: Partial<ChatProps>;
+      selector: string;
+      missing?: boolean;
+      expectedText?: string;
+    }> = [
       {
         name: "active compaction",
         props: {
@@ -134,7 +141,7 @@ describe("chat view", () => {
         selector: ".compaction-indicator--fallback-cleared",
         expectedText: "Fallback cleared: fireworks/minimax-m2p5",
       },
-    ] as const;
+    ];
 
     for (const testCase of cases) {
       const nowSpy =
@@ -146,7 +153,7 @@ describe("chat view", () => {
         expect(indicator, testCase.name).toBeNull();
       } else {
         expect(indicator, testCase.name).not.toBeNull();
-        expect(indicator?.textContent, testCase.name).toContain(testCase.expectedText);
+        expect(indicator?.textContent, testCase.name).toContain(testCase.expectedText ?? "");
       }
       nowSpy?.mockRestore();
     }