diff --git a/packages/api-contracts/src/chats.ts b/packages/api-contracts/src/chats.ts
index 7ef769b..4df1bff 100644
--- a/packages/api-contracts/src/chats.ts
+++ b/packages/api-contracts/src/chats.ts
@@ -1,5 +1,6 @@
 import { z } from 'zod';
 import { ErrorResponseSchema, RejectedActionResponseSchema } from './common.js';
+import { MAX_CONFIGURED_AUTOMATED_CONVERSATION_TURNS } from './config.js';
 import { RedditAccountOwnerSchema } from './session.js';
 
 export const ChatMediaSchema = z.strictObject({
@@ -72,8 +73,8 @@ export const ConversationDetailResponseSchema = ActiveChatSchema.extend({
     sentAt: z.number(),
   }).nullable(),
   automation: z.strictObject({
-    turnsUsed: z.number().int().min(0).max(3),
-    remainingTurns: z.number().int().min(0).max(3),
+    turnsUsed: z.number().int().min(0).max(MAX_CONFIGURED_AUTOMATED_CONVERSATION_TURNS),
+    remainingTurns: z.number().int().min(0).max(MAX_CONFIGURED_AUTOMATED_CONVERSATION_TURNS),
     status: z.enum(['active', 'image-received', 'human-required', 'boundary', 'user-overridden']),
     handoffReason: z.string().nullable(),
   }),
diff --git a/packages/api-contracts/src/config.ts b/packages/api-contracts/src/config.ts
index 63405c7..4a37cde 100644
--- a/packages/api-contracts/src/config.ts
+++ b/packages/api-contracts/src/config.ts
@@ -1,5 +1,7 @@
 import { z } from 'zod';
 
+export const MAX_CONFIGURED_AUTOMATED_CONVERSATION_TURNS = 20;
+
 export const ToneKeySchema = z.union([
   z.literal('default'),
   z.literal('dominant'),
@@ -27,8 +29,8 @@ export const RuntimeConfigSchema = z.strictObject({
 });
 export const ConversationBehaviourSchema = z.strictObject({
   mode: z.union([z.literal('legacy'), z.literal('r4r'), z.literal('r4r-media'), z.literal('manual')]).default('legacy'),
-  maxAutomatedTurns: z.number().int().min(1).max(20).default(3),
-  rapportTurnsBeforeMediaAsk: z.number().int().min(1).max(19).default(3),
+  maxAutomatedTurns: z.number().int().min(1).max(MAX_CONFIGURED_AUTOMATED_CONVERSATION_TURNS).default(3),
+  rapportTurnsBeforeMediaAsk: z.number().int().min(1).max(MAX_CONFIGURED_AUTOMATED_CONVERSATION_TURNS - 1).default(3),
 }).superRefine((behaviour, context) => {
   if (behaviour.mode === 'r4r-media' && behaviour.rapportTurnsBeforeMediaAsk >= behaviour.maxAutomatedTurns) {
     context.addIssue({
diff --git a/packages/api-contracts/tests/contracts.test.ts b/packages/api-contracts/tests/contracts.test.ts
index cdefaaa..55e3e64 100644
--- a/packages/api-contracts/tests/contracts.test.ts
+++ b/packages/api-contracts/tests/contracts.test.ts
@@ -184,6 +184,12 @@ describe('dashboard endpoint contracts', () => {
       automation: { turnsUsed: 1, remainingTurns: 2, status: 'active', handoffReason: null },
       syncInProgress: null,
     }).success).toBe(true);
+    expect(ConversationDetailResponseSchema.safeParse({
+      ...chat,
+      triggeringPost: null,
+      automation: { turnsUsed: 4, remainingTurns: 2, status: 'active', handoffReason: null },
+      syncInProgress: null,
+    }).success).toBe(true);
     expect(ChatsResponseSchema.safeParse([{ ...chat, messages: [{ sender: 'alice' }] }]).success).toBe(false);
     expect(ChatSyncTriggerResponseSchema.safeParse({ success: true, kind: 'delta' }).success).toBe(true);
     expect(ChatSyncTriggerResponseSchema.safeParse({ success: false, reason: 'Already running full sync' }).success).toBe(true);