diff --git a/apps/backend/src/app/api/latest/ai/query/[mode]/route.ts b/apps/backend/src/app/api/latest/ai/query/[mode]/route.ts
index 1c3c1047d..b8ee7e0b1 100644
--- a/apps/backend/src/app/api/latest/ai/query/[mode]/route.ts
+++ b/apps/backend/src/app/api/latest/ai/query/[mode]/route.ts
@@ -97,7 +97,6 @@ export const POST = createSmartRouteHandler({
       userId: fullReq.auth?.user?.id,
       requestedToolsJson: JSON.stringify(toolNames),
       messagesJson: JSON.stringify(messages),
-      mcpCorrelationId: body.mcpCallMetadata ? correlationId : undefined,
       conversationId: conversationIdForLog,
     };
     const startedAt = performance.now();
diff --git a/apps/backend/src/lib/ai/loggers/ai-proxy-logger.ts b/apps/backend/src/lib/ai/loggers/ai-proxy-logger.ts
index c426c9283..3a5176751 100644
--- a/apps/backend/src/lib/ai/loggers/ai-proxy-logger.ts
+++ b/apps/backend/src/lib/ai/loggers/ai-proxy-logger.ts
@@ -46,7 +46,6 @@ export function buildProxyLogRow(fields: ProxyLogFields): AiQueryLogEntry {
     stepCount: 0,
     durationMs,
     errorMessage: responseStatus >= 400 ? `upstream ${responseStatus}` : undefined,
-    mcpCorrelationId: undefined,
     conversationId: undefined,
   };
 }
diff --git a/apps/backend/src/lib/ai/loggers/ai-query-logger.ts b/apps/backend/src/lib/ai/loggers/ai-query-logger.ts
index 3d7db21ee..ccc8b9caf 100644
--- a/apps/backend/src/lib/ai/loggers/ai-query-logger.ts
+++ b/apps/backend/src/lib/ai/loggers/ai-query-logger.ts
@@ -73,7 +73,6 @@ export type AiQueryLogEntry = {
   stepCount: number,
   durationMs: bigint,
   errorMessage: string | undefined,
-  mcpCorrelationId: string | undefined,
   conversationId: string | undefined,
 };
 
@@ -104,7 +103,6 @@ export async function logAiQuery(entry: AiQueryLogEntry): Promise<void> {
     sanitizeRequiredNumber("stepCount", entry.stepCount),
     entry.durationMs,
     opt(entry.errorMessage),
-    opt(entry.mcpCorrelationId),
     opt(entry.conversationId),
   ]);
 }
diff --git a/apps/backend/src/lib/ai/types.ts b/apps/backend/src/lib/ai/types.ts
index de63f069f..fe511c9e0 100644
--- a/apps/backend/src/lib/ai/types.ts
+++ b/apps/backend/src/lib/ai/types.ts
@@ -34,7 +34,6 @@ export type CommonLogFields = {
   userId: string | undefined,
   requestedToolsJson: string,
   messagesJson: string,
-  mcpCorrelationId: string | undefined,
   conversationId: string | undefined,
 };
 
diff --git a/apps/internal-tool/spacetimedb/src/index.ts b/apps/internal-tool/spacetimedb/src/index.ts
index ce6c85713..8265b5a97 100644
--- a/apps/internal-tool/spacetimedb/src/index.ts
+++ b/apps/internal-tool/spacetimedb/src/index.ts
@@ -71,7 +71,6 @@ const aiQueryLog = table(
     stepCount: t.u32(),
     durationMs: t.u64(),
     errorMessage: t.string().optional(),
-    mcpCorrelationId: t.string().optional(),
     conversationId: t.string().optional(),
   }
 );
@@ -589,7 +588,6 @@ export const log_ai_query = spacetimedb.reducer(
     stepCount: t.u32(),
     durationMs: t.u64(),
     errorMessage: t.string().optional(),
-    mcpCorrelationId: t.string().optional(),
     conversationId: t.string().optional(),
   },
   (ctx, args) => {
@@ -623,7 +621,6 @@ export const log_ai_query = spacetimedb.reducer(
       stepCount: args.stepCount,
       durationMs: args.durationMs,
       errorMessage: args.errorMessage,
-      mcpCorrelationId: args.mcpCorrelationId,
       conversationId: args.conversationId,
     } as Parameters<typeof ctx.db.aiQueryLog.insert>[0]);
   }
diff --git a/apps/internal-tool/src/components/Usage.tsx b/apps/internal-tool/src/components/Usage.tsx
index e9689cb0e..ae7e7cea9 100644
--- a/apps/internal-tool/src/components/Usage.tsx
+++ b/apps/internal-tool/src/components/Usage.tsx
@@ -642,7 +642,7 @@ export function Usage({ rows, connectionState, onSelect, selectedId }: Props) {
                       <span className="inline-flex px-1.5 py-0.5 rounded bg-purple-100 text-purple-800 font-mono text-[10px]">
                         {row.systemPromptId}
                       </span>
-                      {row.mcpCorrelationId != null && (
+                      {row.conversationId != null && (
                         <span className="ml-1 inline-flex px-1 py-0.5 rounded bg-amber-100 text-amber-800 text-[9px]">MCP</span>
                       )}
                       {!row.isAuthenticated && (
diff --git a/apps/internal-tool/src/components/UsageDetail.tsx b/apps/internal-tool/src/components/UsageDetail.tsx
index c508bcc4a..b07617786 100644
--- a/apps/internal-tool/src/components/UsageDetail.tsx
+++ b/apps/internal-tool/src/components/UsageDetail.tsx
@@ -91,7 +91,7 @@ export function UsageDetail({ row, onClose }: { row: AiQueryLogRow, onClose: ()
             {isError && (
               <span className="inline-flex px-1.5 py-0.5 rounded bg-red-100 text-red-700 text-[10px]">error</span>
             )}
-            {row.mcpCorrelationId != null && (
+            {row.conversationId != null && (
               <span className="inline-flex px-1.5 py-0.5 rounded bg-amber-100 text-amber-800 text-[10px]">MCP</span>
             )}
           </div>
@@ -142,7 +142,6 @@ export function UsageDetail({ row, onClose }: { row: AiQueryLogRow, onClose: ()
           {row.projectId && <MetaRow label="Project" value={row.projectId} />}
           {row.userId && <MetaRow label="User" value={row.userId} />}
           {row.conversationId && <MetaRow label="Conversation" value={row.conversationId} />}
-          {row.mcpCorrelationId && <MetaRow label="MCP Correlation" value={row.mcpCorrelationId} />}
           <MetaRow label="Steps" value={String(row.stepCount)} />
           <MetaRow label="Tools requested" value={requestedTools.length > 0 ? requestedTools.join(", ") : "—"} />
         </div>
diff --git a/apps/internal-tool/src/module_bindings/log_ai_query_reducer.ts b/apps/internal-tool/src/module_bindings/log_ai_query_reducer.ts
index e3a2e15b5..e3793d29f 100644
--- a/apps/internal-tool/src/module_bindings/log_ai_query_reducer.ts
+++ b/apps/internal-tool/src/module_bindings/log_ai_query_reducer.ts
@@ -35,6 +35,5 @@ export default {
   stepCount: __t.u32(),
   durationMs: __t.u64(),
   errorMessage: __t.option(__t.string()),
-  mcpCorrelationId: __t.option(__t.string()),
   conversationId: __t.option(__t.string()),
 };
diff --git a/apps/internal-tool/src/module_bindings/my_visible_ai_query_log_table.ts b/apps/internal-tool/src/module_bindings/my_visible_ai_query_log_table.ts
index 5d6c3994f..37460d039 100644
--- a/apps/internal-tool/src/module_bindings/my_visible_ai_query_log_table.ts
+++ b/apps/internal-tool/src/module_bindings/my_visible_ai_query_log_table.ts
@@ -37,6 +37,5 @@ export default __t.row({
   stepCount: __t.u32().name("step_count"),
   durationMs: __t.u64().name("duration_ms"),
   errorMessage: __t.option(__t.string()).name("error_message"),
-  mcpCorrelationId: __t.option(__t.string()).name("mcp_correlation_id"),
   conversationId: __t.option(__t.string()).name("conversation_id"),
 });
diff --git a/apps/internal-tool/src/module_bindings/types.ts b/apps/internal-tool/src/module_bindings/types.ts
index 3fe92e636..572502ea9 100644
--- a/apps/internal-tool/src/module_bindings/types.ts
+++ b/apps/internal-tool/src/module_bindings/types.ts
@@ -37,7 +37,6 @@ export const AiQueryLog = __t.object("AiQueryLog", {
   stepCount: __t.u32(),
   durationMs: __t.u64(),
   errorMessage: __t.option(__t.string()),
-  mcpCorrelationId: __t.option(__t.string()),
   conversationId: __t.option(__t.string()),
 });
 export type AiQueryLog = __Infer<typeof AiQueryLog>;