diff --git a/src/backend/src/gitea.js b/src/backend/src/gitea.js
index 391f19f..17f8060 100644
--- a/src/backend/src/gitea.js
+++ b/src/backend/src/gitea.js
@@ -114,6 +114,53 @@ async function getWorkflowRunForCommit(owner, repo, commitHash) {
   return runs.find((run) => run.commit && run.commit.startsWith(commitHash)) || null;
 }
 
+/** Retourne la médiane d'une série numérique non vide. */
+function median(values) {
+  if (!values.length) return null;
+  const sorted = [...values].sort((left, right) => left - right);
+  const middle = Math.floor(sorted.length / 2);
+  return sorted.length % 2 ? sorted[middle] : Math.round((sorted[middle - 1] + sorted[middle]) / 2);
+}
+
+/**
+ * Construit une synthèse déterministe sur les derniers runs CI.
+ * Les comparaisons ne sont calculées qu’avec deux fenêtres d’au moins deux runs
+ * pour ne pas transformer une variation isolée en tendance.
+ */
+function calculateCiSummary(runs) {
+  const completed = runs.filter((run) => run.status === 'completed');
+  const successful = completed.filter((run) => run.conclusion === 'success');
+  const durations = completed.map((run) => run.durationSeconds).filter(Number.isFinite);
+  const windowSize = Math.floor(durations.length / 2);
+  const recent = windowSize >= 2 ? durations.slice(0, windowSize) : [];
+  const previous = windowSize >= 2 ? durations.slice(windowSize, windowSize * 2) : [];
+  const recentMedian = median(recent);
+  const previousMedian = median(previous);
+  const changePercent = previousMedian && recentMedian !== null
+    ? Math.round(((recentMedian - previousMedian) / previousMedian) * 100)
+    : null;
+  const trend = changePercent === null ? 'unknown'
+    : changePercent <= -10 ? 'faster'
+      : changePercent >= 10 ? 'slower'
+        : 'stable';
+
+  return {
+    sampleSize: completed.length,
+    successful: successful.length,
+    failed: completed.length - successful.length,
+    successRate: completed.length ? Math.round((successful.length / completed.length) * 100) : null,
+    medianDurationSeconds: median(durations),
+    recentMedianDurationSeconds: recentMedian,
+    previousMedianDurationSeconds: previousMedian,
+    trend,
+    changePercent,
+  };
+}
+
+async function getWorkflowRunSummary(owner, repo) {
+  return calculateCiSummary(await getWorkflowRuns(owner, repo, 30));
+}
+
 /**
  * Récupérer tous les dépôts (avec retry en cas d'erreur DNS)
  */
@@ -158,8 +205,10 @@ module.exports = {
   getCommits,
   getBranches,
   getWorkflowRuns,
+  getWorkflowRunSummary,
   getWorkflowRunForCommit,
   normalizeWorkflowRun,
+  calculateCiSummary,
   listRepos,
   createRepo,
   giteaClient,
diff --git a/src/backend/src/routes.js b/src/backend/src/routes.js
index 841f7ca..8d28248 100644
--- a/src/backend/src/routes.js
+++ b/src/backend/src/routes.js
@@ -4,7 +4,7 @@ const path = require('path');
 const fs = require('fs');
 const { authenticate, authMiddleware } = require('./auth');
 const { docker, getContainerInfo, getContainerLogs, listContainers, redeployApp, gitPull, startContainer, stopContainer, restartContainer, getServerMetrics } = require('./docker');
-const { getRepo, getCommits, getBranches, getWorkflowRuns, listRepos } = require('./gitea');
+const { getRepo, getCommits, getBranches, getWorkflowRuns, getWorkflowRunSummary, listRepos } = require('./gitea');
 const { checkAllApps, addDeploymentLog, updateDeploymentLog, getDeploymentLogs, getAllStatuses, getAppStatus, cleanupOrphanedDeployments } = require('./healthcheck');
 const { createApplication, getAvailableStacks, initDynamicApps } = require('./app-creator');
 const config = require('./config');
@@ -409,6 +409,15 @@ router.get('/gitea/repos/:owner/:repo/actions/runs', authMiddleware, async (req,
   }
 });
 
+// Synthèse historique : taux de succès, médiane et tendance des validations CI.
+router.get('/gitea/repos/:owner/:repo/actions/summary', authMiddleware, async (req, res) => {
+  try {
+    res.json(await getWorkflowRunSummary(req.params.owner, req.params.repo));
+  } catch (err) {
+    res.status(500).json({ error: err.message });
+  }
+});
+
 // ============ PUBLIC STATUS ROUTE (sans authentification) ============
 // Utilisé par le portail applicatif pour griser les tuiles des apps arrêtées
 router.get('/public/status', async (req, res) => {
diff --git a/src/backend/test/gitea.test.js b/src/backend/test/gitea.test.js
index fd047c6..879d7a6 100644
--- a/src/backend/test/gitea.test.js
+++ b/src/backend/test/gitea.test.js
@@ -1,5 +1,5 @@
 const assert = require('node:assert/strict');
-const { normalizeWorkflowRun } = require('../src/gitea');
+const { normalizeWorkflowRun, calculateCiSummary } = require('../src/gitea');
 
 const run = normalizeWorkflowRun({
   id: 42,
@@ -14,4 +14,14 @@ const run = normalizeWorkflowRun({
 assert.equal(run.commit, 'abcdef123456');
 assert.equal(run.durationSeconds, 125);
 assert.equal(run.conclusion, 'success');
+
+const summary = calculateCiSummary([
+  { status: 'completed', conclusion: 'success', durationSeconds: 90 },
+  { status: 'completed', conclusion: 'success', durationSeconds: 110 },
+  { status: 'completed', conclusion: 'failure', durationSeconds: 120 },
+  { status: 'completed', conclusion: 'success', durationSeconds: 100 },
+]);
+assert.equal(summary.successRate, 75);
+assert.equal(summary.medianDurationSeconds, 105);
+assert.equal(summary.trend, 'stable');
 console.log('OK gitea');
diff --git a/src/frontend/src/pages/GiteaPage.jsx b/src/frontend/src/pages/GiteaPage.jsx
index e36f657..7ada476 100644
--- a/src/frontend/src/pages/GiteaPage.jsx
+++ b/src/frontend/src/pages/GiteaPage.jsx
@@ -9,8 +9,14 @@ import {
   Clock,
   User,
   Code,
+  CheckCircle2,
+  XCircle,
+  Loader2,
+  TrendingDown,
+  TrendingUp,
+  Minus,
 } from 'lucide-react';
-import { getGiteaRepos, getGiteaCommits } from '../utils/api';
+import { getGiteaRepos, getGiteaCommits, getGiteaWorkflowRuns, getGiteaWorkflowSummary } from '../utils/api';
 
 function formatDate(dateStr) {
   if (!dateStr) return 'N/A';
@@ -27,11 +33,30 @@ function formatSize(kb) {
   return `${(kb / 1024).toFixed(1)} MB`;
 }
 
+function formatDuration(seconds) {
+  if (!Number.isFinite(seconds)) return 'En attente';
+  const minutes = Math.floor(seconds / 60);
+  const remainingSeconds = seconds % 60;
+  return minutes > 0 ? `${minutes} min ${remainingSeconds.toString().padStart(2, '0')} s` : `${remainingSeconds} s`;
+}
+
+function CiStatus({ run }) {
+  if (run.status !== 'completed') {
+    return <span className="text-amber-300 flex items-center gap-1"><Loader2 className="w-3 h-3 animate-spin" /> En cours</span>;
+  }
+  if (run.conclusion === 'success') {
+    return <span className="text-emerald-300 flex items-center gap-1"><CheckCircle2 className="w-3 h-3" /> Réussi</span>;
+  }
+  return <span className="text-red-300 flex items-center gap-1"><XCircle className="w-3 h-3" /> {run.conclusion || 'Échec'}</span>;
+}
+
 export default function GiteaPage() {
   const [repos, setRepos] = useState([]);
   const [loading, setLoading] = useState(true);
   const [selectedRepo, setSelectedRepo] = useState(null);
   const [commits, setCommits] = useState([]);
+  const [workflowRuns, setWorkflowRuns] = useState([]);
+  const [workflowSummary, setWorkflowSummary] = useState(null);
   const [loadingCommits, setLoadingCommits] = useState(false);
 
   const fetchRepos = async () => {
@@ -51,11 +76,19 @@ export default function GiteaPage() {
     setSelectedRepo(fullName);
     try {
       const [owner, repo] = fullName.split('/');
-      const res = await getGiteaCommits(owner, repo);
-      setCommits(res.data);
+      const [commitsResponse, runsResponse, summaryResponse] = await Promise.all([
+        getGiteaCommits(owner, repo),
+        getGiteaWorkflowRuns(owner, repo),
+        getGiteaWorkflowSummary(owner, repo),
+      ]);
+      setCommits(commitsResponse.data);
+      setWorkflowRuns(runsResponse.data);
+      setWorkflowSummary(summaryResponse.data);
     } catch (err) {
       console.error('Erreur chargement commits:', err);
       setCommits([]);
+      setWorkflowRuns([]);
+      setWorkflowSummary(null);
     } finally {
       setLoadingCommits(false);
     }
@@ -191,6 +224,48 @@ export default function GiteaPage() {
             </div>
           ) : (
             <div className="space-y-2">
+              <div className="card p-3">
+                <p className="text-xs font-medium text-gray-400 uppercase tracking-wider mb-2">Dernières validations CI</p>
+                {workflowRuns.length === 0 ? (
+                  <p className="text-sm text-gray-500">Aucune validation CI trouvée pour ce dépôt.</p>
+                ) : (
+                  <>
+                    {workflowSummary?.sampleSize > 0 && (
+                      <div className="grid grid-cols-3 gap-2 mb-3 text-xs">
+                        <div className="rounded bg-dark-700/70 p-2">
+                          <p className="text-gray-500">Succès</p>
+                          <p className="font-semibold text-emerald-300">{workflowSummary.successRate}%</p>
+                        </div>
+                        <div className="rounded bg-dark-700/70 p-2">
+                          <p className="text-gray-500">Médiane</p>
+                          <p className="font-semibold text-gray-200">{formatDuration(workflowSummary.medianDurationSeconds)}</p>
+                        </div>
+                        <div className="rounded bg-dark-700/70 p-2">
+                          <p className="text-gray-500">Tendance</p>
+                          <p className={`font-semibold flex items-center gap-1 ${workflowSummary.trend === 'faster' ? 'text-emerald-300' : workflowSummary.trend === 'slower' ? 'text-red-300' : 'text-gray-300'}`}>
+                            {workflowSummary.trend === 'faster' ? <TrendingDown className="w-3 h-3" /> : workflowSummary.trend === 'slower' ? <TrendingUp className="w-3 h-3" /> : <Minus className="w-3 h-3" />}
+                            {workflowSummary.changePercent === null ? 'N/A' : `${Math.abs(workflowSummary.changePercent)}%`}
+                          </p>
+                        </div>
+                      </div>
+                    )}
+                    <div className="space-y-2">
+                      {workflowRuns.slice(0, 5).map((run) => (
+                      <div key={run.id} className="flex items-center justify-between gap-3 text-xs">
+                        <div className="min-w-0">
+                          <p className="text-gray-200 truncate">{run.name}</p>
+                          <p className="text-gray-500">{run.commit?.slice(0, 7) || 'Commit inconnu'} · {formatDate(run.createdAt)}</p>
+                        </div>
+                        <div className="shrink-0 text-right">
+                          <CiStatus run={run} />
+                          <span className="text-gray-500 flex items-center justify-end gap-1 mt-1"><Clock className="w-3 h-3" />{formatDuration(run.durationSeconds)}</span>
+                        </div>
+                      </div>
+                      ))}
+                    </div>
+                  </>
+                )}
+              </div>
               {commits.map((commit, idx) => (
                 <div key={commit.sha || idx} className="card p-3">
                   <div className="flex items-start gap-3">
diff --git a/src/frontend/src/utils/api.js b/src/frontend/src/utils/api.js
index 322ad77..482bf54 100644
--- a/src/frontend/src/utils/api.js
+++ b/src/frontend/src/utils/api.js
@@ -59,6 +59,10 @@ export const getDeployments = (appId) =>
 export const getGiteaRepos = () => api.get('/gitea/repos');
 export const getGiteaCommits = (owner, repo) =>
   api.get(`/gitea/repos/${owner}/${repo}/commits`);
+export const getGiteaWorkflowRuns = (owner, repo) =>
+  api.get(`/gitea/repos/${owner}/${repo}/actions/runs`);
+export const getGiteaWorkflowSummary = (owner, repo) =>
+  api.get(`/gitea/repos/${owner}/${repo}/actions/summary`);
 
 // Docker
 export const getContainers = () => api.get('/docker/containers');