diff --git a/internal/service/service.go b/internal/service/service.go
index d199066..851320e 100644
--- a/internal/service/service.go
+++ b/internal/service/service.go
@@ -446,6 +446,8 @@ type Request struct {
 	Model string `json:"model,omitempty"`
 	// SystemMessage overrides the configured system message for this request.
 	SystemMessage string `json:"system_message,omitempty"`
+	// MaxIterations caps the number of agent loop turns (0 = unlimited).
+	MaxIterations int `json:"max_iterations,omitempty"`
 }
 
 // Response is the response format for chat and voice endpoints.
@@ -541,7 +543,7 @@ func (svc *Service) chat(w http.ResponseWriter, r *http.Request) {
 	}
 
 	res, err := llmc.Completions(
-		ctx, model, req.SystemMessage, 0, req.Messages,
+		ctx, model, req.SystemMessage, req.MaxIterations, req.Messages,
 	)
 	if err != nil {
 		log.ErrorContext(
@@ -713,7 +715,7 @@ func (svc *Service) chatStream(w http.ResponseWriter, r *http.Request) {
 	)
 	go func() {
 		errs <- llmc.CompletionsStream(
-			ctx, model, req.SystemMessage, 0, req.Messages, events,
+			ctx, model, req.SystemMessage, req.MaxIterations, req.Messages, events,
 		)
 		close(errs)
 	}()
diff --git a/internal/service/static/icons.svg b/internal/service/static/icons.svg
index 94c1a2b..f1bdf43 100644
--- a/internal/service/static/icons.svg
+++ b/internal/service/static/icons.svg
@@ -134,4 +134,10 @@
     <path d="M7 15h6"/>
     <path d="M7 7h8"/>
   </symbol>
+  <symbol id="settings-2" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+    <path d="M14 17H5" />
+    <path d="M19 7h-9" />
+    <circle cx="17" cy="17" r="3" />
+    <circle cx="7" cy="7" r="3" />
+  </symbol>
 </svg>
diff --git a/internal/service/static/main.css b/internal/service/static/main.css
index 6018b83..dce9059 100644
--- a/internal/service/static/main.css
+++ b/internal/service/static/main.css
@@ -661,6 +661,18 @@ body {
   }
 }
 
+#compose-settings-close {
+  border: none;
+  color: var(--color-text);
+}
+
+@media (hover: hover) {
+  #compose-settings-close:hover {
+    border-color: transparent;
+    color: var(--color-text);
+  }
+}
+
 /* Tabs */
 .settings-tabs {
   display: flex;
@@ -715,6 +727,14 @@ body {
   margin-bottom: var(--s-2);
 }
 
+.settings-label__sub {
+  display: block;
+  font-size: var(--s-2);
+  font-weight: 400;
+  color: var(--color-text-muted);
+  margin-top: 0.125rem;
+}
+
 .settings-select {
   width: 100%;
   height: var(--s2);
@@ -735,6 +755,10 @@ body {
   outline-offset: 2px;
 }
 
+.settings-field {
+  margin-bottom: var(--s1);
+}
+
 .settings-textarea {
   display: block;
   width: 100%;
diff --git a/internal/service/static/main.js b/internal/service/static/main.js
index 465632c..cf2bc7e 100644
--- a/internal/service/static/main.js
+++ b/internal/service/static/main.js
@@ -14,6 +14,7 @@ import { WakeLock } from './wakelock.js';
 
 const STREAM_ENDPOINT = '/v1/chat/voice/stream';
 const SYSTEM_MESSAGE_KEY = 'odidere_system_message';
+const MAX_TURNS_KEY = 'odidere_max_turns';
 const ICONS_URL = '/static/icons.svg';
 
 const StreamEventDelta = 'delta';
@@ -102,6 +103,13 @@ class Odidere {
     this.$settingsClose = document.getElementById('settings-close');
     this.$settingsTabs = document.querySelectorAll('.settings-tab');
     this.$saveSystemMessage = document.getElementById('save-system-message');
+    this.$composeSettingsOverlay = document.getElementById(
+      'compose-settings-overlay',
+    );
+    this.$composeSettingsClose = document.getElementById(
+      'compose-settings-close',
+    );
+    this.$maxTurnsInput = document.getElementById('max-turns-input');
     this.$compose = document.querySelector('.compose');
 
     this.init();
@@ -241,6 +249,18 @@ class Odidere {
       this.settings.saveSystemMessage(),
     );
 
+    // --- Compose settings ---
+    this.$composeSettingsClose.addEventListener('click', () =>
+      this._closeComposeSettings(),
+    );
+    this.$composeSettingsOverlay.addEventListener('click', (e) => {
+      if (e.target === this.$composeSettingsOverlay)
+        this._closeComposeSettings();
+    });
+    this.$maxTurnsInput.addEventListener('input', () => {
+      this._setMaxTurns(this.$maxTurnsInput.value);
+    });
+
     // --- Model/voice change persistence ---
     this.settings.$model.addEventListener('change', () =>
       this.settings.saveModelSelection(),
@@ -297,6 +317,9 @@ class Odidere {
       case 'settings':
         this.settings.open();
         break;
+      case 'compose-settings':
+        this._openComposeSettings();
+        break;
       case 'attach':
         // Handled by direct listener on $attach.
         break;
@@ -599,6 +622,10 @@ class Odidere {
         if (systemMessage) {
           payload.system_message = systemMessage;
         }
+        const maxTurns = this._getMaxTurns();
+        if (maxTurns > 0) {
+          payload.max_iterations = maxTurns;
+        }
 
         // Clear attachments and location after building payload.
         this.clearAttachments();
@@ -1100,6 +1127,30 @@ class Odidere {
     this.$location.classList.remove('compose__action-btn--location', 'active');
   }
 
+  // ====================
+  // COMPOSE SETTINGS
+  // ====================
+
+  _openComposeSettings() {
+    this.$maxTurnsInput.value = this._getMaxTurns();
+    this.$composeSettingsOverlay.classList.add('open');
+    this.$composeSettingsClose.focus();
+  }
+
+  _closeComposeSettings() {
+    this.$composeSettingsOverlay.classList.remove('open');
+    this.$composeSettings.focus();
+  }
+
+  _getMaxTurns() {
+    const stored = localStorage.getItem(MAX_TURNS_KEY);
+    return stored ? Number(stored) : 0;
+  }
+
+  _setMaxTurns(value) {
+    localStorage.setItem(MAX_TURNS_KEY, String(value));
+  }
+
   // ====================
   // TWO-PRESS SAFETY PATTERNS
   // ====================
diff --git a/internal/service/templates/static/body.gohtml b/internal/service/templates/static/body.gohtml
index 7fd95ea..f5bf196 100644
--- a/internal/service/templates/static/body.gohtml
+++ b/internal/service/templates/static/body.gohtml
@@ -4,5 +4,6 @@
     {{ template "templates" . }}
     {{ template "modal/settings" . }}
     {{ template "modal/edit" . }}
+    {{ template "modal/compose-settings" . }}
   </body>
 {{ end }}
diff --git a/internal/service/templates/static/footer/compose.gohtml b/internal/service/templates/static/footer/compose.gohtml
index 81c2dc8..1aad779 100644
--- a/internal/service/templates/static/footer/compose.gohtml
+++ b/internal/service/templates/static/footer/compose.gohtml
@@ -10,6 +10,15 @@
     <div class="compose__attachments" id="attachments"></div>
     <div class="compose__actions">
       <div class="compose__actions-left">
+        <button
+          type="button"
+          class="compose__action-btn"
+          id="compose-settings"
+          data-action="compose-settings"
+          aria-label="Compose settings"
+        >
+          <svg class="icon"><use href="/static/icons.svg#settings-2"></use></svg>
+        </button>
         <button
           type="button"
           class="compose__action-btn"