diff --git a/apps/ops/src/components/shared/OrchestratorDialog.vue b/apps/ops/src/components/shared/OrchestratorDialog.vue
index b605a31..d898c61 100644
--- a/apps/ops/src/components/shared/OrchestratorDialog.vue
+++ b/apps/ops/src/components/shared/OrchestratorDialog.vue
@@ -34,11 +34,15 @@
         </q-select>
 
         <div class="row justify-end q-mt-xs">
-          <q-btn unelevated color="deep-purple-6" icon="auto_awesome" label="Préparer le plan" no-caps :disable="!text.trim() || planning" :loading="planning" @click="plan" />
+          <q-btn unelevated color="deep-purple-6" icon="auto_awesome" :label="thread.length ? 'Envoyer' : 'Préparer le plan'" no-caps :disable="!text.trim() || planning" :loading="planning" @click="plan" />
         </div>
 
-        <!-- Réponse de l'assistant (résumé NL / résultat des lectures, ex. « Pour quel technicien ? ») -->
-        <div v-if="reply" class="orch-reply q-mt-md">{{ reply }}</div>
+        <!-- Fil de conversation (chat MULTI-TOURS) : l'assistant peut poser une question → réponds dans le champ ci-dessus -->
+        <div v-if="thread.length" class="orch-thread q-mt-md">
+          <div v-for="(m, i) in thread" :key="i" :class="['orch-msg', 'orch-msg-' + m.role]">
+            <q-icon v-if="m.role === 'assistant'" name="bolt" size="14px" color="deep-purple-6" class="q-mr-xs" />{{ m.text }}
+          </div>
+        </div>
 
         <!-- Vérifications (lecture immédiate — pas de confirmation) -->
         <div v-if="diagnoses.length" class="q-mt-md">
@@ -196,6 +200,7 @@ function onPickEntity (opt) {
 const actions = ref([])
 const results = ref([])
 const reply = ref('')
+const thread = ref([]) // fil de conversation (chat multi-tours) : [{ role:'user'|'assistant', text }]
 
 // En-têtes de requête : identité de l'agent connecté pour les routes STAFF (attribution + suivi + permissions).
 function reqHeaders () {
@@ -220,7 +225,7 @@ async function pickDiag (a, m) {
 
 watch(() => props.modelValue, v => { open.value = v; if (v) { reset(); if (props.initialText) { text.value = props.initialText; nextTick(() => plan()) } } })
 watch(open, v => emit('update:modelValue', v))
-function reset () { text.value = ''; actions.value = []; results.value = []; reply.value = ''; if (recog) { try { recog.stop() } catch (e) {} } listening.value = false }
+function reset () { text.value = ''; actions.value = []; results.value = []; reply.value = ''; thread.value = []; if (recog) { try { recog.stop() } catch (e) {} } listening.value = false }
 
 const iconOf = t => ({ create_ticket: 'confirmation_number', send_sms: 'sms', send_email: 'mail', note: 'sticky_note_2', create_job: 'add_task', assign_tech: 'engineering', add_assistant: 'group_add', set_job_status: 'flag', reschedule_job: 'event_repeat', create_recurring_shift: 'event_available', follow_doc: 'notifications_active' }[t] || 'bolt')
 const colorOf = t => ({ create_ticket: 'teal-7', send_sms: 'green-6', send_email: 'red-5', note: 'amber-7', create_job: 'indigo-6', assign_tech: 'indigo-6', add_assistant: 'blue-grey-6', set_job_status: 'deep-orange-6', reschedule_job: 'deep-purple-5', create_recurring_shift: 'teal-6', follow_doc: 'blue-6' }[t] || 'grey-7')
@@ -246,18 +251,23 @@ function toggleMic () {
 }
 
 async function plan () {
-  if (!text.value.trim()) return
+  const userText = text.value.trim()
+  if (!userText || planning.value) return
   planning.value = true; results.value = []
+  thread.value.push({ role: 'user', text: userText })
+  const history = thread.value.slice(0, -1).map(m => ({ role: m.role, content: m.text })) // tours précédents = contexte
+  text.value = '' // vide le champ → prêt à RÉPONDRE à une question de l'assistant (chat)
   try {
-    const r = await fetch(`${HUB_URL}${props.planEndpoint}`, { method: 'POST', headers: reqHeaders(), body: JSON.stringify({ text: text.value.trim() }) })
+    const r = await fetch(`${HUB_URL}${props.planEndpoint}`, { method: 'POST', headers: reqHeaders(), body: JSON.stringify({ text: userText, history }) })
     const d = await r.json()
     if (d.ok) {
-      actions.value = d.actions || []
-      reply.value = d.reply || '' // le copilote STAFF renvoie un résumé NL / une question ; l'orchestrateur comms non
+      actions.value = d.actions || [] // plan du DERNIER tour (remplace le précédent)
+      reply.value = d.reply || ''
+      if (d.reply) thread.value.push({ role: 'assistant', text: d.reply }) // réponse/question de l'assistant → dans le fil
       for (const a of actions.value) if (a.type === 'create_ticket' && a.resolved) onResolved(a) // pré-charge les adresses de service
-      if (!actions.value.length && !reply.value) $q.notify({ type: 'info', message: 'Aucune action détectée — reformule.' })
-    } else $q.notify({ type: 'negative', message: d.error || 'Échec' })
-  } catch (e) { $q.notify({ type: 'negative', message: e.message }) } finally { planning.value = false }
+      if (!actions.value.length && !d.reply) $q.notify({ type: 'info', message: 'Aucune action détectée — reformule.' })
+    } else { thread.value.push({ role: 'assistant', text: '⚠ ' + (d.error || 'Échec') }); $q.notify({ type: 'negative', message: d.error || 'Échec' }) }
+  } catch (e) { thread.value.push({ role: 'assistant', text: '⚠ ' + e.message }); $q.notify({ type: 'negative', message: e.message }) } finally { planning.value = false }
 }
 // Quand le client résolu change (ou au chargement) : récupère ses adresses de service et présélectionne celle qui matche.
 async function onResolved (a) {
@@ -287,4 +297,8 @@ async function run () {
 .orch-diag { border: 1px solid #e0e7ff; border-radius: 8px; padding: 10px; margin-bottom: 8px; background: #f5f7ff; }
 .diag-dot { width: 11px; height: 11px; border-radius: 50%; margin-right: 10px; flex: 0 0 auto; }
 .orch-reply { border-left: 3px solid #7c6cf6; background: #f6f5ff; padding: 8px 12px; border-radius: 0 8px 8px 0; color: #4a4a5a; font-size: 0.92rem; white-space: pre-wrap; }
+.orch-thread { display: flex; flex-direction: column; gap: 8px; max-height: 42vh; overflow-y: auto; }
+.orch-msg { padding: 8px 12px; border-radius: 10px; font-size: 0.92rem; white-space: pre-wrap; max-width: 88%; line-height: 1.4; }
+.orch-msg-user { align-self: flex-end; background: #ede9fe; color: #3a3a4a; border-bottom-right-radius: 3px; }
+.orch-msg-assistant { align-self: flex-start; background: #f6f5ff; border-left: 3px solid #7c6cf6; color: #4a4a5a; border-bottom-left-radius: 3px; }
 </style>
diff --git a/services/targo-hub/lib/staff-agent.js b/services/targo-hub/lib/staff-agent.js
index c2360e8..7073a4f 100644
--- a/services/targo-hub/lib/staff-agent.js
+++ b/services/targo-hub/lib/staff-agent.js
@@ -290,11 +290,14 @@ async function execToolPlan (name, args, ctx) {
 }
 
 // PLAN : boucle function-calling. Les LECTURES s'exécutent (résolution), les ÉCRITURES sont mises en attente.
-async function plan (text, email) {
+async function plan (text, email, history) {
   if (!cfg.AI_API_KEY) return { ok: false, error: "Le service IA n'est pas configuré (AI_API_KEY manquante)." }
   const planned = []
   const ctx = { email, planned }
-  const messages = [{ role: 'system', content: systemPrompt(email) }, { role: 'user', content: String(text || '') }]
+  // Chat MULTI-TOURS : les tours précédents (user/assistant) donnent le contexte pour répondre à une question de
+  // clarification (« oui, crée l'intervention »). Bornage : 10 derniers tours, 4000 car. chacun.
+  const hist = Array.isArray(history) ? history.filter(m => m && (m.role === 'user' || m.role === 'assistant') && m.content).slice(-10).map(m => ({ role: m.role, content: String(m.content).slice(0, 4000) })) : []
+  const messages = [{ role: 'system', content: systemPrompt(email) }, ...hist, { role: 'user', content: String(text || '') }]
   let response
   try { response = await geminiChat(messages) } catch (e) { return { ok: false, error: 'IA : ' + e.message } }
   const cur = [...messages]
@@ -344,7 +347,7 @@ async function handle (req, res, method, path) {
   const email = String(req.headers['x-authentik-email'] || '').toLowerCase()
   if (path === '/staff-agent' && method === 'POST') {
     const b = await parseBody(req)
-    try { return json(res, 200, await plan(b.text || '', email)) }
+    try { return json(res, 200, await plan(b.text || '', email, b.history)) }
     catch (e) { return json(res, 200, { ok: false, error: 'Erreur copilote : ' + (e.message || e) }) }
   }
   if (path === '/staff-agent/run' && method === 'POST') {