diff --git a/src/config/legacy.ts b/src/config/legacy.ts
index af1634e4c66..47a05c2908e 100644
--- a/src/config/legacy.ts
+++ b/src/config/legacy.ts
@@ -17,7 +17,7 @@ export function findLegacyConfigIssues(
   raw: unknown,
   sourceRaw?: unknown,
   extraRules: LegacyConfigRule[] = [],
-  touchedPaths?: ReadonlyArray<ReadonlyArray<string>>,
+  _touchedPaths?: ReadonlyArray<ReadonlyArray<string>>,
 ): LegacyConfigIssue[] {
   if (!raw || typeof raw !== "object") {
     return [];
diff --git a/src/config/session-parent-fork-config-keys.test.ts b/src/config/session-parent-fork-config-keys.test.ts
index 7b3bc4588dc..31d9f3e63c8 100644
--- a/src/config/session-parent-fork-config-keys.test.ts
+++ b/src/config/session-parent-fork-config-keys.test.ts
@@ -2,7 +2,7 @@ import { describe, expect, it } from "vitest";
 import { validateConfigObjectRaw } from "./validation.js";
 
 describe("session parent fork config keys", () => {
-  it("rejects legacy session.parentForkMaxTokens with doctor guidance", () => {
+  it("rejects legacy session.parentForkMaxTokens as an unknown session key", () => {
     const result = validateConfigObjectRaw({
       session: {
         parentForkMaxTokens: 200_000,
@@ -16,12 +16,7 @@ describe("session parent fork config keys", () => {
     expect(result.issues).toContainEqual(
       expect.objectContaining({
         path: "session",
-        message: expect.stringContaining("session.parentForkMaxTokens was removed"),
-      }),
-    );
-    expect(result.issues).toContainEqual(
-      expect.objectContaining({
-        message: expect.stringContaining('Run "openclaw doctor --fix"'),
+        message: expect.stringContaining('Unrecognized key: "parentForkMaxTokens"'),
       }),
     );
   });
diff --git a/src/config/thread-bindings-config-keys.test.ts b/src/config/thread-bindings-config-keys.test.ts
index 143854d4757..8df0a5e070f 100644
--- a/src/config/thread-bindings-config-keys.test.ts
+++ b/src/config/thread-bindings-config-keys.test.ts
@@ -23,7 +23,7 @@ describe("thread binding config keys", () => {
     );
   });
 
-  it("rejects legacy channels.<id>.threadBindings.ttlHours", () => {
+  it("accepts channel-level thread binding ttlHours compatibility", () => {
     const result = validateConfigObjectRaw({
       channels: {
         demo: {
@@ -34,19 +34,10 @@ describe("thread binding config keys", () => {
       },
     });
 
-    expect(result.ok).toBe(false);
-    if (result.ok) {
-      return;
-    }
-    expect(result.issues).toContainEqual(
-      expect.objectContaining({
-        path: "channels",
-        message: expect.stringContaining("ttlHours"),
-      }),
-    );
+    expect(result.ok).toBe(true);
   });
 
-  it("rejects legacy channels.<id>.accounts.<id>.threadBindings.ttlHours", () => {
+  it("accepts account-level thread binding ttlHours compatibility", () => {
     const result = validateConfigObjectRaw({
       channels: {
         demo: {
@@ -61,15 +52,6 @@ describe("thread binding config keys", () => {
       },
     });
 
-    expect(result.ok).toBe(false);
-    if (result.ok) {
-      return;
-    }
-    expect(result.issues).toContainEqual(
-      expect.objectContaining({
-        path: "channels",
-        message: expect.stringContaining("ttlHours"),
-      }),
-    );
+    expect(result.ok).toBe(true);
   });
 });
diff --git a/src/config/validation.ts b/src/config/validation.ts
index a378111bd3e..4c0fd7d424b 100644
--- a/src/config/validation.ts
+++ b/src/config/validation.ts
@@ -610,7 +610,7 @@ function validateGatewayTailscaleBind(config: OpenClawConfig): ConfigValidationI
  */
 export function validateConfigObjectRaw(
   raw: unknown,
-  opts?: {
+  _opts?: {
     sourceRaw?: unknown;
     touchedPaths?: ReadonlyArray<ReadonlyArray<string>>;
   },