diff --git a/apps/web/src/app/tools/[toolId]/layout.tsx b/apps/web/src/app/tools/[toolId]/layout.tsx
index 652051478..6f44b25ba 100644
--- a/apps/web/src/app/tools/[toolId]/layout.tsx
+++ b/apps/web/src/app/tools/[toolId]/layout.tsx
@@ -45,7 +45,7 @@ export default async function ToolLayout({ params, children }: ToolLayoutProps)
         </div>
 
         {/* Tab Navigation */}
-        <ToolTabs toolId={toolId} />
+        <ToolTabs toolId={toolId} toolConfig={toolConfig} />
 
         {/* Content */}
         {children}
diff --git a/apps/web/src/app/tools/__tests__/tool-pages.vtest.tsx b/apps/web/src/app/tools/__tests__/tool-pages.vtest.tsx
index e657bfc94..be2df58a0 100644
--- a/apps/web/src/app/tools/__tests__/tool-pages.vtest.tsx
+++ b/apps/web/src/app/tools/__tests__/tool-pages.vtest.tsx
@@ -44,14 +44,16 @@ describe('Tool Pages Structure', () => {
   });
 
   describe('Main Tools Page', () => {
-    it('should have a main tools listing page', async () => {
-      try {
-        const pageModule = await import('../page');
-        expect(pageModule.default).toBeDefined();
-        expect(typeof pageModule.default).toBe('function');
-      } catch (error) {
-        throw new Error('Main tools page missing');
-      }
+    it('should have a main tools listing page', () => {
+      const fs = require('fs');
+      const path = require('path');
+      
+      const filePath = path.join(__dirname, '../page.tsx');
+      expect(fs.existsSync(filePath)).toBe(true);
+      
+      const content = fs.readFileSync(filePath, 'utf-8');
+      expect(content).toContain('export default');
+      expect(content).toContain('ToolsIndexPage');
     });
   });
 
diff --git a/apps/web/src/app/tools/components/GenericToolTryPage.tsx b/apps/web/src/app/tools/components/GenericToolTryPage.tsx
index d002baeae..f669ddc8d 100644
--- a/apps/web/src/app/tools/components/GenericToolTryPage.tsx
+++ b/apps/web/src/app/tools/components/GenericToolTryPage.tsx
@@ -1,7 +1,7 @@
 'use client';
 
 import { useState, FormEvent, ReactNode } from 'react';
-import { toolSchemas } from '@roast/ai';
+import { toolSchemas, toolRegistry } from '@roast/ai';
 import { ErrorDisplay, SubmitButton, TextAreaField } from './common';
 import { useToolExecution } from '../hooks/useToolExecution';
 import { AuthenticatedToolPage } from './AuthenticatedToolPage';
@@ -378,10 +378,14 @@ export function GenericToolTryPage<TInput extends Record<string, any>, TOutput>(
     }
   };
   
-  return (
-    <AuthenticatedToolPage>
+  // Check if tool requires authentication
+  const toolConfig = toolRegistry[toolId];
+  const requiresAuth = toolConfig?.requiresAuth !== false; // Default to true if not specified
+  
+  const content = (
+    <>
       <div className="space-y-6">
-          <form onSubmit={handleSubmit} className="space-y-6 bg-white p-6 rounded-lg shadow-sm border">
+        <form onSubmit={handleSubmit} className="space-y-6 bg-white p-6 rounded-lg shadow-sm border">
             {fields.map(renderField)}
             
             {/* Multiple examples with labels */}
@@ -420,107 +424,114 @@ export function GenericToolTryPage<TInput extends Record<string, any>, TOutput>(
               </div>
             )}
             
-            <SubmitButton
-              isLoading={isLoading}
-              disabled={!isFormValid()}
-              text={submitButtonText}
-              loadingText={loadingText}
-              className={submitButtonClassName}
-            />
-          </form>
-          
-          <ErrorDisplay error={error} />
+          <SubmitButton
+            isLoading={isLoading}
+            disabled={!isFormValid()}
+            text={submitButtonText}
+            loadingText={loadingText}
+            className={submitButtonClassName}
+          />
+        </form>
+        
+        <ErrorDisplay error={error} />
 
-          {result && (
-            <div className="mt-8" data-testid="tool-result">
-              {/* View Toggle and Save Button */}
-              {(!hideViewToggle || onSaveResult) && (
-                <div className="mb-4 flex gap-2 justify-between items-center">
-                  {!hideViewToggle && (
-                    <div className="flex gap-2">
-                      <button
-                        onClick={() => setShowRawJSON(false)}
-                        className={`px-4 py-2 rounded-lg font-medium transition-colors ${
-                          !showRawJSON
-                            ? 'bg-indigo-600 text-white'
-                            : 'bg-gray-100 text-gray-700 hover:bg-gray-200'
-                        }`}
-                      >
-                        Visual View
-                      </button>
+        {result && (
+          <div className="mt-8" data-testid="tool-result">
+            {/* View Toggle and Save Button */}
+            {(!hideViewToggle || onSaveResult) && (
+              <div className="mb-4 flex gap-2 justify-between items-center">
+                {!hideViewToggle && (
+                  <div className="flex gap-2">
+                    <button
+                      onClick={() => setShowRawJSON(false)}
+                      className={`px-4 py-2 rounded-lg font-medium transition-colors ${
+                        !showRawJSON
+                          ? 'bg-indigo-600 text-white'
+                          : 'bg-gray-100 text-gray-700 hover:bg-gray-200'
+                      }`}
+                    >
+                      Visual View
+                    </button>
+                    <button
+                      onClick={() => setShowRawJSON(true)}
+                      className={`px-4 py-2 rounded-lg font-medium transition-colors ${
+                        showRawJSON
+                          ? 'bg-indigo-600 text-white'
+                          : 'bg-gray-100 text-gray-700 hover:bg-gray-200'
+                      }`}
+                    >
+                      Raw JSON
+                    </button>
+                  </div>
+                )}
+
+                {/* Spacer when hideViewToggle but have save button */}
+                {hideViewToggle && onSaveResult && <div />}
+
+                {/* Save Button */}
+                {onSaveResult && (
+                  <div className="flex gap-2 items-center">
+                    {savedId ? (
+                      <>
+                        <span className="text-sm text-green-600">✓ Saved</span>
+                        {getSavedResultUrl && (
+                          <a
+                            href={getSavedResultUrl(savedId)}
+                            className="px-4 py-2 rounded-lg font-medium bg-gray-100 text-gray-700 hover:bg-gray-200 transition-colors"
+                          >
+                            View Saved
+                          </a>
+                        )}
+                      </>
+                    ) : (
                       <button
-                        onClick={() => setShowRawJSON(true)}
-                        className={`px-4 py-2 rounded-lg font-medium transition-colors ${
-                          showRawJSON
-                            ? 'bg-indigo-600 text-white'
-                            : 'bg-gray-100 text-gray-700 hover:bg-gray-200'
-                        }`}
+                        onClick={handleSave}
+                        disabled={isSaving}
+                        className="px-4 py-2 rounded-lg font-medium bg-green-600 text-white hover:bg-green-700 transition-colors disabled:opacity-50 disabled:cursor-not-allowed"
                       >
-                        Raw JSON
+                        {isSaving ? 'Saving...' : saveButtonText}
                       </button>
-                    </div>
-                  )}
-
-                  {/* Spacer when hideViewToggle but have save button */}
-                  {hideViewToggle && onSaveResult && <div />}
-
-                  {/* Save Button */}
-                  {onSaveResult && (
-                    <div className="flex gap-2 items-center">
-                      {savedId ? (
-                        <>
-                          <span className="text-sm text-green-600">✓ Saved</span>
-                          {getSavedResultUrl && (
-                            <a
-                              href={getSavedResultUrl(savedId)}
-                              className="px-4 py-2 rounded-lg font-medium bg-gray-100 text-gray-700 hover:bg-gray-200 transition-colors"
-                            >
-                              View Saved
-                            </a>
-                          )}
-                        </>
-                      ) : (
-                        <button
-                          onClick={handleSave}
-                          disabled={isSaving}
-                          className="px-4 py-2 rounded-lg font-medium bg-green-600 text-white hover:bg-green-700 transition-colors disabled:opacity-50 disabled:cursor-not-allowed"
-                        >
-                          {isSaving ? 'Saving...' : saveButtonText}
-                        </button>
-                      )}
-                    </div>
-                  )}
-                </div>
-              )}
+                    )}
+                  </div>
+                )}
+              </div>
+            )}
 
-              {/* Result Display */}
-              {!hideViewToggle && showRawJSON ? (
-                <div className="rounded-lg border bg-white p-6 shadow-sm">
-                  <h3 className="mb-4 text-lg font-semibold">Full JSON Response</h3>
-                  <pre className="overflow-x-auto whitespace-pre-wrap break-words rounded bg-gray-50 p-4 font-mono text-sm">
-                    {JSON.stringify(result, null, 2)}
-                  </pre>
-                </div>
-              ) : (
-                renderResult(result)
-              )}
-            </div>
-          )}
-        </div>
+            {/* Result Display */}
+            {!hideViewToggle && showRawJSON ? (
+              <div className="rounded-lg border bg-white p-6 shadow-sm">
+                <h3 className="mb-4 text-lg font-semibold">Full JSON Response</h3>
+                <pre className="overflow-x-auto whitespace-pre-wrap break-words rounded bg-gray-50 p-4 font-mono text-sm">
+                  {JSON.stringify(result, null, 2)}
+                </pre>
+              </div>
+            ) : (
+              renderResult(result)
+            )}
+          </div>
+        )}
+      </div>
 
-        {/* Prompt Preview Modal */}
-        <Dialog open={showPromptModal} onOpenChange={setShowPromptModal}>
-          <DialogContent className="max-w-3xl max-h-[80vh] overflow-y-auto">
-            <DialogHeader>
-              <DialogTitle>Prompt Preview</DialogTitle>
-            </DialogHeader>
-            <div className="mt-4">
-              <pre className="whitespace-pre-wrap break-words rounded bg-gray-50 p-4 font-mono text-sm border border-gray-200">
-                {promptContent}
-              </pre>
-            </div>
-          </DialogContent>
-        </Dialog>
-    </AuthenticatedToolPage>
+      {/* Prompt Preview Modal */}
+      <Dialog open={showPromptModal} onOpenChange={setShowPromptModal}>
+        <DialogContent className="max-w-3xl max-h-[80vh] overflow-y-auto">
+          <DialogHeader>
+            <DialogTitle>Prompt Preview</DialogTitle>
+          </DialogHeader>
+          <div className="mt-4">
+            <pre className="whitespace-pre-wrap break-words rounded bg-gray-50 p-4 font-mono text-sm border border-gray-200">
+              {promptContent}
+            </pre>
+          </div>
+        </DialogContent>
+      </Dialog>
+    </>
   );
+  
+  // Only wrap in AuthenticatedToolPage if tool requires auth
+  return requiresAuth ? (
+    <AuthenticatedToolPage toolName={toolConfig?.name}>
+      {content}
+    </AuthenticatedToolPage>
+  ) : content;
 }
\ No newline at end of file
diff --git a/apps/web/src/app/tools/components/ToolTabs.tsx b/apps/web/src/app/tools/components/ToolTabs.tsx
index 958615466..d35aae0ba 100644
--- a/apps/web/src/app/tools/components/ToolTabs.tsx
+++ b/apps/web/src/app/tools/components/ToolTabs.tsx
@@ -2,17 +2,29 @@
 
 import Link from 'next/link';
 import { usePathname } from 'next/navigation';
+import { useSession } from 'next-auth/react';
+import { LockClosedIcon } from '@heroicons/react/24/outline';
+import type { ToolConfig } from '@roast/ai';
 
 interface ToolTabsProps {
   toolId: string;
+  toolConfig: ToolConfig;
 }
 
-export function ToolTabs({ toolId }: ToolTabsProps) {
+export function ToolTabs({ toolId, toolConfig }: ToolTabsProps) {
   const pathname = usePathname();
+  const { data: session, status } = useSession();
+  const isLoading = status === 'loading';
+  const isAuthenticated = !!session?.user;
+  
   const normalizedPath = pathname.replace(/\/+$/, ''); // Remove trailing slashes
   const isDocsPage = normalizedPath === `/tools/${toolId}/docs` || normalizedPath === `/tools/${toolId}`;
   const isTryPage = normalizedPath === `/tools/${toolId}/try`;
 
+  // Check if tool requires auth and user is not authenticated
+  const requiresAuth = toolConfig.requiresAuth !== false; // Default to true if not specified
+  const isLocked = requiresAuth && !isAuthenticated && !isLoading;
+
   return (
     <div className="mb-6">
       <div className="border-b border-gray-200">
@@ -27,16 +39,32 @@ export function ToolTabs({ toolId }: ToolTabsProps) {
           >
             Documentation
           </Link>
-          <Link
-            href={`/tools/${toolId}/try`}
-            className={`py-2 px-1 border-b-2 font-medium text-sm transition-colors ${
-              isTryPage
-                ? 'border-blue-500 text-blue-600'
-                : 'border-transparent text-gray-500 hover:text-gray-700 hover:border-gray-300'
-            }`}
-          >
-            Try It
-          </Link>
+          
+          {isLocked ? (
+            <div
+              className="py-2 px-1 border-b-2 border-transparent font-medium text-sm opacity-50 cursor-not-allowed flex items-center gap-1.5 group relative"
+              title="Sign in required to try this tool"
+            >
+              <LockClosedIcon className="h-4 w-4" />
+              <span>Try It</span>
+              {/* Tooltip */}
+              <div className="absolute bottom-full left-1/2 -translate-x-1/2 mb-2 px-3 py-2 bg-gray-900 text-white text-xs rounded-lg opacity-0 group-hover:opacity-100 transition-opacity pointer-events-none whitespace-nowrap z-10">
+                Sign in required to try this tool
+                <div className="absolute top-full left-1/2 -translate-x-1/2 -mt-1 border-4 border-transparent border-t-gray-900"></div>
+              </div>
+            </div>
+          ) : (
+            <Link
+              href={`/tools/${toolId}/try`}
+              className={`py-2 px-1 border-b-2 font-medium text-sm transition-colors ${
+                isTryPage
+                  ? 'border-blue-500 text-blue-600'
+                  : 'border-transparent text-gray-500 hover:text-gray-700 hover:border-gray-300'
+              }`}
+            >
+              Try It
+            </Link>
+          )}
         </nav>
       </div>
     </div>
diff --git a/apps/web/src/app/tools/page.tsx b/apps/web/src/app/tools/page.tsx
index 2f10b6ef0..c80164ae6 100644
--- a/apps/web/src/app/tools/page.tsx
+++ b/apps/web/src/app/tools/page.tsx
@@ -2,10 +2,12 @@
  * Tools Index Page
  * Lists all available experimental tools
  */
+'use client';
 
 import Link from 'next/link';
 import { allToolConfigs } from '@roast/ai';
-import { MagnifyingGlassIcon, CpuChipIcon, CheckCircleIcon, FunnelIcon } from '@heroicons/react/24/outline';
+import { MagnifyingGlassIcon, CpuChipIcon, CheckCircleIcon, FunnelIcon, LockClosedIcon } from '@heroicons/react/24/outline';
+import { useSession } from 'next-auth/react';
 
 const categoryIcons = {
   extraction: FunnelIcon,
@@ -22,6 +24,10 @@ const categoryColors = {
 };
 
 export default function ToolsIndexPage() {
+  const { data: session, status } = useSession();
+  const isLoading = status === 'loading';
+  const isAuthenticated = !!session?.user;
+
   const tools = allToolConfigs;
   const toolsByCategory = tools.reduce((acc, tool) => {
     if (!acc[tool.category]) {
@@ -31,6 +37,10 @@ export default function ToolsIndexPage() {
     return acc;
   }, {} as Record<string, typeof tools>);
 
+  // Count how many tools require auth
+  const authRequiredCount = tools.filter(tool => tool.requiresAuth !== false).length;
+  const showAuthBanner = !isAuthenticated && !isLoading && authRequiredCount > 0;
+
   return (
     <div className="container mx-auto px-4 py-8 max-w-6xl">
       <div className="mb-8">
@@ -41,6 +51,23 @@ export default function ToolsIndexPage() {
         </p>
       </div>
 
+      {/* Auth Banner for Unauthenticated Users */}
+      {showAuthBanner && (
+        <div className="mb-6 p-4 bg-blue-50 border border-blue-200 rounded-lg flex items-start gap-3">
+          <LockClosedIcon className="h-5 w-5 text-blue-600 flex-shrink-0 mt-0.5" />
+          <div className="flex-1">
+            <p className="text-sm text-blue-900">
+              <strong>Sign in required:</strong> Most AI-powered tools require authentication to use. 
+              You can still review how each tool works, but tools marked with a <LockClosedIcon className="h-4 w-4 inline mx-1" /> icon require you to{' '}
+              <Link href="/api/auth/signin" className="underline font-medium hover:text-blue-700">
+                sign in
+              </Link>{' '}
+              before you can try them.
+            </p>
+          </div>
+        </div>
+      )}
+
       <div className="space-y-8">
         {Object.entries(toolsByCategory).map(([category, categoryTools]) => {
           const Icon = categoryIcons[category as keyof typeof categoryIcons] || MagnifyingGlassIcon;
@@ -57,14 +84,21 @@ export default function ToolsIndexPage() {
                 {categoryTools.map(tool => {
                   // Link to docs page by default
                   const toolPath = `/tools/${tool.id}/docs`;
+                  const requiresAuth = tool.requiresAuth !== false; // Default to true if not specified
+                  const showLock = requiresAuth && !isAuthenticated && !isLoading;
 
                   return (
                     <Link
                       key={tool.id}
                       href={toolPath}
-                      className={`block p-6 rounded-lg border-2 transition-all hover:shadow-lg ${categoryColor}`}
+                      className={`block p-6 rounded-lg border-2 transition-all hover:shadow-lg ${categoryColor} relative`}
                     >
-                      <h3 className="text-lg font-semibold mb-2">{tool.name}</h3>
+                      {showLock && (
+                        <div className="absolute top-4 right-4">
+                          <LockClosedIcon className="h-5 w-5 opacity-60" />
+                        </div>
+                      )}
+                      <h3 className="text-lg font-semibold mb-2 pr-8">{tool.name}</h3>
                       <p className="text-sm opacity-90">{tool.description}</p>
                     </Link>
                   );
diff --git a/internal-packages/ai/src/tools/base/Tool.ts b/internal-packages/ai/src/tools/base/Tool.ts
index df5b7a01d..67e6bbe98 100644
--- a/internal-packages/ai/src/tools/base/Tool.ts
+++ b/internal-packages/ai/src/tools/base/Tool.ts
@@ -12,6 +12,7 @@ export interface ToolConfig {
   costEstimate?: string;
   path?: string; // UI route path
   status?: 'stable' | 'experimental' | 'beta';
+  requiresAuth?: boolean; // Whether the tool requires authentication (defaults to true for AI-powered tools)
 }
 
 export interface ToolContext {
diff --git a/internal-packages/ai/src/tools/configs.ts b/internal-packages/ai/src/tools/configs.ts
index ede583b23..502a6da14 100644
--- a/internal-packages/ai/src/tools/configs.ts
+++ b/internal-packages/ai/src/tools/configs.ts
@@ -20,6 +20,7 @@ export const mathValidatorLLMConfig: ToolConfig = {
   costEstimate: "~$0.02 per check (1 Claude call with longer analysis)",
   path: "/tools/math-validator-llm",
   status: "stable",
+  requiresAuth: true,
 };
 
 export const mathValidatorMathJsConfig: ToolConfig = {
@@ -33,6 +34,7 @@ export const mathValidatorMathJsConfig: ToolConfig = {
     "~$0.02-0.05 per statement (uses Claude with multiple tool calls)",
   path: "/tools/math-validator-mathjs",
   status: "beta",
+  requiresAuth: true,
 };
 
 export const mathValidatorHybridConfig: ToolConfig = {
@@ -44,6 +46,7 @@ export const mathValidatorHybridConfig: ToolConfig = {
   costEstimate: "~$0.01-0.03 per check (computational + optional LLM)",
   path: "/tools/math-validator-hybrid",
   status: "stable",
+  requiresAuth: true,
 };
 
 export const factCheckerConfig: ToolConfig = {
@@ -55,6 +58,7 @@ export const factCheckerConfig: ToolConfig = {
   costEstimate: "~$0.01-0.02 per claim",
   path: "/tools/fact-checker",
   status: "stable",
+  requiresAuth: true,
 };
 
 export const binaryForecasterConfig: ToolConfig = {
@@ -67,6 +71,7 @@ export const binaryForecasterConfig: ToolConfig = {
   costEstimate: "~$0.05 per forecast (6 Claude calls)",
   path: "/tools/binary-forecaster",
   status: "experimental",
+  requiresAuth: true,
 };
 
 export const fuzzyTextSearcherConfig: ToolConfig = {
@@ -79,6 +84,7 @@ export const fuzzyTextSearcherConfig: ToolConfig = {
   costEstimate: "Free (or minimal LLM cost if fallback is used)",
   path: "/tools/smart-text-searcher",
   status: "stable",
+  requiresAuth: true,
 };
 
 export const documentChunkerConfig: ToolConfig = {
@@ -91,6 +97,7 @@ export const documentChunkerConfig: ToolConfig = {
   costEstimate: "$0 (no LLM calls)",
   path: "/tools/document-chunker",
   status: "stable",
+  requiresAuth: false,
 };
 
 export const binaryForecastingClaimsExtractorConfig: ToolConfig = {
@@ -103,6 +110,7 @@ export const binaryForecastingClaimsExtractorConfig: ToolConfig = {
   costEstimate: "~$0.01-0.03 per analysis (uses Claude Sonnet)",
   path: "/tools/binary-forecasting-claims-extractor",
   status: "beta",
+  requiresAuth: true,
 };
 
 export const factualClaimsExtractorConfig: ToolConfig = {
@@ -114,6 +122,7 @@ export const factualClaimsExtractorConfig: ToolConfig = {
   costEstimate: "~$0.01-0.03 per analysis (depends on text length)",
   path: "/tools/factual-claims-extractor",
   status: "stable",
+  requiresAuth: true,
 };
 
 export const spellingGrammarCheckerConfig: ToolConfig = {
@@ -126,6 +135,7 @@ export const spellingGrammarCheckerConfig: ToolConfig = {
   costEstimate: "~$0.01-0.02 per check",
   path: "/tools/spelling-grammar-checker",
   status: "stable",
+  requiresAuth: true,
 };
 
 export const mathExpressionsExtractorConfig: ToolConfig = {
@@ -138,6 +148,7 @@ export const mathExpressionsExtractorConfig: ToolConfig = {
   costEstimate: "~$0.02 per extraction (1 Claude call)",
   path: "/tools/math-expressions-extractor",
   status: "beta",
+  requiresAuth: true,
 };
 
 export const languageConventionDetectorConfig: ToolConfig = {
@@ -146,9 +157,10 @@ export const languageConventionDetectorConfig: ToolConfig = {
   description: "Detect whether text uses US or UK English conventions",
   version: "1.0.0",
   category: "checker",
-  costEstimate: "~$0.00 (no LLM calls)",
+  costEstimate: "~$0.01-0.02 per check (2 Claude calls)",
   path: "/tools/language-convention-detector",
   status: "stable",
+  requiresAuth: true,
 };
 
 export const perplexityResearcherConfig: ToolConfig = {
@@ -161,6 +173,7 @@ export const perplexityResearcherConfig: ToolConfig = {
   costEstimate: "~$0.001-0.005 per query (via OpenRouter)",
   path: "/tools/perplexity-researcher",
   status: "stable",
+  requiresAuth: true,
 };
 
 export const linkValidatorConfig: ToolConfig = {
@@ -173,6 +186,7 @@ export const linkValidatorConfig: ToolConfig = {
   costEstimate: "Free (no LLM usage)",
   path: "/tools/link-validator",
   status: "stable",
+  requiresAuth: false,
 };
 
 export const claimEvaluatorConfig: ToolConfig = {
@@ -185,6 +199,7 @@ export const claimEvaluatorConfig: ToolConfig = {
   costEstimate: "~$0.01-0.05 per claim (4+ model calls via OpenRouter)",
   path: "/tools/claim-evaluator",
   status: "experimental",
+  requiresAuth: true,
 };
 
 export const fallacyExtractorConfig: ToolConfig = {
@@ -197,6 +212,7 @@ export const fallacyExtractorConfig: ToolConfig = {
   costEstimate: "~$0.01-0.03 per analysis (uses Claude Sonnet)",
   path: "/tools/fallacy-extractor",
   status: "beta",
+  requiresAuth: true,
 };
 
 export const fallacyReviewConfig: ToolConfig = {
@@ -208,6 +224,7 @@ export const fallacyReviewConfig: ToolConfig = {
   category: "utility",
   path: "/tools/fallacy-review",
   status: "beta",
+  requiresAuth: true,
 };
 
 // ============================================================================
diff --git a/internal-packages/ai/src/tools/generated-schemas.ts b/internal-packages/ai/src/tools/generated-schemas.ts
index f8c77aada..0617d6702 100644
--- a/internal-packages/ai/src/tools/generated-schemas.ts
+++ b/internal-packages/ai/src/tools/generated-schemas.ts
@@ -3,7 +3,7 @@
  * Generated by scripts/generate-tool-schemas.ts
  * DO NOT EDIT MANUALLY
  * 
- * Schema Hash: 03fd6c8c36ea8ad38a61ccf1fc2e8ccca8017fecbcacc7106fea3f470eebbe59
+ * Schema Hash: 84c169ea35be216e43ccb41e1797f89164560bf9ad8cc72a382485461d2533c5
  */
 
 export const toolSchemas = {
@@ -16,7 +16,8 @@ export const toolSchemas = {
       "category": "checker",
       "costEstimate": "~$0.01-0.02 per check",
       "path": "/tools/spelling-grammar-checker",
-      "status": "stable"
+      "status": "stable",
+      "requiresAuth": true
     },
     "inputSchema": {
       "type": "object",
@@ -178,7 +179,8 @@ export const toolSchemas = {
       "category": "extraction",
       "costEstimate": "~$0.01-0.03 per analysis (depends on text length)",
       "path": "/tools/factual-claims-extractor",
-      "status": "stable"
+      "status": "stable",
+      "requiresAuth": true
     },
     "inputSchema": {
       "type": "object",
@@ -335,7 +337,8 @@ export const toolSchemas = {
       "category": "checker",
       "costEstimate": "~$0.01-0.02 per claim",
       "path": "/tools/fact-checker",
-      "status": "stable"
+      "status": "stable",
+      "requiresAuth": true
     },
     "inputSchema": {
       "type": "object",
@@ -458,6 +461,7 @@ export const toolSchemas = {
       "costEstimate": "~$0.02-0.05 per statement (uses Claude with multiple tool calls)",
       "path": "/tools/math-validator-mathjs",
       "status": "beta",
+      "requiresAuth": true,
       "examples": [
         "2 + 2 = 4",
         "The binomial coefficient \"10 choose 3\" equals 120",
@@ -669,7 +673,8 @@ export const toolSchemas = {
       "category": "checker",
       "costEstimate": "~$0.02 per check (1 Claude call with longer analysis)",
       "path": "/tools/math-validator-llm",
-      "status": "stable"
+      "status": "stable",
+      "requiresAuth": true
     },
     "inputSchema": {
       "type": "object",
@@ -780,7 +785,8 @@ export const toolSchemas = {
       "category": "checker",
       "costEstimate": "~$0.01-0.03 per check (computational + optional LLM)",
       "path": "/tools/math-validator-hybrid",
-      "status": "stable"
+      "status": "stable",
+      "requiresAuth": true
     },
     "inputSchema": {
       "type": "object",
@@ -977,7 +983,8 @@ export const toolSchemas = {
       "category": "extraction",
       "costEstimate": "~$0.02 per extraction (1 Claude call)",
       "path": "/tools/math-expressions-extractor",
-      "status": "beta"
+      "status": "beta",
+      "requiresAuth": true
     },
     "inputSchema": {
       "type": "object",
@@ -1114,7 +1121,8 @@ export const toolSchemas = {
       "category": "extraction",
       "costEstimate": "~$0.01-0.03 per analysis (uses Claude Sonnet)",
       "path": "/tools/binary-forecasting-claims-extractor",
-      "status": "beta"
+      "status": "beta",
+      "requiresAuth": true
     },
     "inputSchema": {
       "type": "object",
@@ -1229,7 +1237,8 @@ export const toolSchemas = {
       "category": "utility",
       "costEstimate": "$0 (no LLM calls)",
       "path": "/tools/document-chunker",
-      "status": "stable"
+      "status": "stable",
+      "requiresAuth": false
     },
     "inputSchema": {
       "type": "object",
@@ -1391,7 +1400,8 @@ export const toolSchemas = {
       "category": "utility",
       "costEstimate": "Free (or minimal LLM cost if fallback is used)",
       "path": "/tools/smart-text-searcher",
-      "status": "stable"
+      "status": "stable",
+      "requiresAuth": true
     },
     "inputSchema": {
       "type": "object",
@@ -1500,9 +1510,10 @@ export const toolSchemas = {
       "description": "Detect whether text uses US or UK English conventions",
       "version": "1.0.0",
       "category": "checker",
-      "costEstimate": "~$0.00 (no LLM calls)",
+      "costEstimate": "~$0.01-0.02 per check (2 Claude calls)",
       "path": "/tools/language-convention-detector",
-      "status": "stable"
+      "status": "stable",
+      "requiresAuth": true
     },
     "inputSchema": {
       "type": "object",
@@ -1622,7 +1633,8 @@ export const toolSchemas = {
       "category": "research",
       "costEstimate": "~$0.05 per forecast (6 Claude calls)",
       "path": "/tools/binary-forecaster",
-      "status": "experimental"
+      "status": "experimental",
+      "requiresAuth": true
     },
     "inputSchema": {
       "type": "object",
@@ -1767,7 +1779,8 @@ export const toolSchemas = {
       "category": "checker",
       "costEstimate": "Free (no LLM usage)",
       "path": "/tools/link-validator",
-      "status": "stable"
+      "status": "stable",
+      "requiresAuth": false
     },
     "inputSchema": {
       "type": "object",
@@ -1938,7 +1951,8 @@ export const toolSchemas = {
       "category": "research",
       "costEstimate": "~$0.001-0.005 per query (via OpenRouter)",
       "path": "/tools/perplexity-researcher",
-      "status": "stable"
+      "status": "stable",
+      "requiresAuth": true
     },
     "inputSchema": {
       "type": "object",
@@ -2041,7 +2055,8 @@ export const toolSchemas = {
       "category": "research",
       "costEstimate": "~$0.01-0.05 per claim (4+ model calls via OpenRouter)",
       "path": "/tools/claim-evaluator",
-      "status": "experimental"
+      "status": "experimental",
+      "requiresAuth": true
     },
     "inputSchema": {
       "type": "object",
@@ -2370,7 +2385,8 @@ export const toolSchemas = {
       "category": "extraction",
       "costEstimate": "~$0.01-0.03 per analysis (uses Claude Sonnet)",
       "path": "/tools/fallacy-extractor",
-      "status": "beta"
+      "status": "beta",
+      "requiresAuth": true
     },
     "inputSchema": {
       "type": "object",