diff --git a/frontend/index.html b/frontend/index.html
index fa307b2d..f5bae965 100644
--- a/frontend/index.html
+++ b/frontend/index.html
@@ -1141,6 +1141,31 @@
       font-family: var(--font-mono);
     }
 
+    .complexity-chip {
+      padding: 2px 10px;
+      border-radius: 99px;
+      font-size: 0.68rem;
+      font-weight: 700;
+      letter-spacing: 0.02em;
+      cursor: help;
+      white-space: nowrap;
+    }
+
+    .complexity-chip.complexity-easy {
+      background: rgba(34, 197, 94, 0.15);
+      color: #4ade80;
+    }
+
+    .complexity-chip.complexity-medium {
+      background: rgba(245, 200, 66, 0.15);
+      color: var(--yellow);
+    }
+
+    .complexity-chip.complexity-hard {
+      background: rgba(242, 87, 87, 0.15);
+      color: var(--red);
+    }
+
     .issue-type {
       font-size: 0.88rem;
       font-weight: 600
@@ -4066,6 +4091,51 @@ <h3>Project Health Score</h3>
   `;
       }
 
+      // ── Issue Complexity Badge ──
+      // Pure frontend heuristic: scores an issue using fields already present on the
+      // issue object (severity, description length, suggestion presence, keywords)
+      // and maps it to Easy / Medium / Hard. No backend involvement required.
+      const COMPLEXITY_KEYWORDS = {
+        hard: ['race condition', 'deadlock', 'memory leak', 'security', 'vulnerability', 'concurrency', 'thread', 'async', 'architecture', 'refactor', 'sql injection', 'recursion', 'algorithm'],
+        medium: ['null', 'undefined', 'exception', 'error handling', 'type', 'performance', 'validation', 'edge case', 'logic'],
+      };
+
+      function scoreIssueComplexity(issue) {
+        let score = 0;
+        const desc = (issue.description || '').toLowerCase();
+        const type = (issue.type || '').toLowerCase();
+        const text = `${desc} ${type}`;
+
+        if (issue.severity === 'error') score += 3;
+        else if (issue.severity === 'warning') score += 2;
+        else if (issue.severity === 'info') score += 1;
+
+        const len = desc.length;
+        if (len > 160) score += 3;
+        else if (len > 80) score += 2;
+        else if (len > 0) score += 1;
+
+        if (COMPLEXITY_KEYWORDS.hard.some(k => text.includes(k))) score += 3;
+        else if (COMPLEXITY_KEYWORDS.medium.some(k => text.includes(k))) score += 1;
+
+        if (!issue.suggestion) score += 1;
+
+        return score;
+      }
+
+      function getIssueComplexity(issue) {
+        const score = scoreIssueComplexity(issue);
+        if (score >= 7) return { level: 'hard', label: 'Hard', emoji: '🔴', score };
+        if (score >= 4) return { level: 'medium', label: 'Medium', emoji: '🟡', score };
+        return { level: 'easy', label: 'Easy', emoji: '🟢', score };
+      }
+
+      function renderComplexityBadge(issue) {
+        const c = getIssueComplexity(issue);
+        const tooltip = `Estimated complexity: ${c.label} (score ${c.score}/11) — based on severity, description length, keywords, and whether a fix suggestion is provided.`;
+        return `<span class="complexity-chip complexity-${c.level}" title="${escHtml(tooltip)}">${c.emoji} ${c.label}</span>`;
+      }
+
       function renderDebug(dbg) {
         document.getElementById('emptyDebug').style.display = 'none';
         const el = document.getElementById('debugResult');
@@ -4106,6 +4176,7 @@ <h3>Project Health Score</h3>
 
     <summary class="collapsible-summary">
       <span>${issue.type}</span>
+      ${renderComplexityBadge(issue)}
       ${issue.line
         ? `<span class="issue-line">Line ${issue.line}</span>`
         : ''}
@@ -5876,4 +5947,4 @@ <h2 id="collabDrawerTitle">Live Collaboration</h2>
 
 </body>
 
-</html>
\ No newline at end of file
+</html>
diff --git a/frontend/script.js b/frontend/script.js
index be23ee3e..7c06caf9 100644
--- a/frontend/script.js
+++ b/frontend/script.js
@@ -426,6 +426,55 @@ async function runAnalysis() {
   }
 }
 
+// ── Issue Complexity Badge ──
+// Pure frontend heuristic: scores an issue using fields already present on the
+// issue object (severity, description length, suggestion presence, keywords)
+// and maps it to Easy / Medium / Hard. No backend involvement required.
+const COMPLEXITY_KEYWORDS = {
+  hard: ['race condition', 'deadlock', 'memory leak', 'security', 'vulnerability', 'concurrency', 'thread', 'async', 'architecture', 'refactor', 'sql injection', 'recursion', 'algorithm'],
+  medium: ['null', 'undefined', 'exception', 'error handling', 'type', 'performance', 'validation', 'edge case', 'logic'],
+};
+
+function scoreIssueComplexity(issue) {
+  let score = 0;
+  const desc = (issue.description || '').toLowerCase();
+  const type = (issue.type || '').toLowerCase();
+  const text = `${desc} ${type}`;
+
+  // Severity contributes the most signal when available.
+  if (issue.severity === 'error') score += 3;
+  else if (issue.severity === 'warning') score += 2;
+  else if (issue.severity === 'info') score += 1;
+
+  // Longer descriptions tend to indicate more nuanced/complex issues.
+  const len = desc.length;
+  if (len > 160) score += 3;
+  else if (len > 80) score += 2;
+  else if (len > 0) score += 1;
+
+  // Keyword heuristics.
+  if (COMPLEXITY_KEYWORDS.hard.some(k => text.includes(k))) score += 3;
+  else if (COMPLEXITY_KEYWORDS.medium.some(k => text.includes(k))) score += 1;
+
+  // A missing fix suggestion usually means the issue needs more judgment to resolve.
+  if (!issue.suggestion) score += 1;
+
+  return score;
+}
+
+function getIssueComplexity(issue) {
+  const score = scoreIssueComplexity(issue);
+  if (score >= 7) return { level: 'hard', label: 'Hard', emoji: '🔴', score };
+  if (score >= 4) return { level: 'medium', label: 'Medium', emoji: '🟡', score };
+  return { level: 'easy', label: 'Easy', emoji: '🟢', score };
+}
+
+function renderComplexityBadge(issue) {
+  const c = getIssueComplexity(issue);
+  const tooltip = `Estimated complexity: ${c.label} (score ${c.score}/11) — based on severity, description length, keywords, and whether a fix suggestion is provided.`;
+  return `<span class="result-tag complexity-badge complexity-${c.level}" title="${escHtml(tooltip)}">${c.emoji} ${c.label}</span>`;
+}
+
 // ── Render Output ──
 function renderResult(data, mode) {
   let html = '';
@@ -457,6 +506,7 @@ function renderResult(data, mode) {
             ? '<span class="result-tag tag-ok">✓ No issues found</span>'
             : issues.map(i => `<div style="margin-bottom:10px">
                 <span class="result-tag tag-error">${escHtml(i.type || 'Issue')}</span>
+                ${renderComplexityBadge(i)}
                 <p style="margin-top:4px">${escHtml(i.description || '')}</p>
                 ${i.suggestion ? `<p style="color:var(--accent-green);margin-top:4px">Fix: ${escHtml(i.suggestion)}</p>` : ''}
               </div>`).join('')}
@@ -503,6 +553,7 @@ function renderResult(data, mode) {
           : issues.map(i => `<div style="margin-bottom:14px;padding:12px;background:var(--bg-2);border-radius:6px;border:1px solid var(--border)">
               <span class="result-tag tag-error">${escHtml(i.type || 'Issue')}</span>
               ${i.line ? `<span class="result-tag tag-info">Line ${i.line}</span>` : ''}
+              ${renderComplexityBadge(i)}
               <p style="margin-top:8px">${escHtml(i.description || '')}</p>
               ${i.suggestion ? `<p style="margin-top:6px;color:var(--accent-green)">→ ${escHtml(i.suggestion)}</p>` : ''}
             </div>`).join('')}
@@ -636,4 +687,5 @@ if (digestForm) {
 
 // ── Init ──
 renderHistory();
-renderFavorites();
\ No newline at end of file
+renderFavorites();
+
diff --git a/frontend/style.css b/frontend/style.css
index b05b82a7..6bfe3c5c 100644
--- a/frontend/style.css
+++ b/frontend/style.css
@@ -527,6 +527,15 @@ body {
 .tag-ok { background: rgba(34,197,94,0.12); color: #86efac; border: 1px solid rgba(34,197,94,0.2); }
 .tag-info { background: rgba(59,130,246,0.12); color: #93c5fd; border: 1px solid rgba(59,130,246,0.2); }
 
+/* ── Issue Complexity Badge ── */
+.complexity-badge {
+  font-weight: 600;
+  cursor: help;
+}
+.complexity-easy { background: rgba(34,197,94,0.12); color: #86efac; border: 1px solid rgba(34,197,94,0.25); }
+.complexity-medium { background: rgba(234,179,8,0.14); color: #fde047; border: 1px solid rgba(234,179,8,0.3); }
+.complexity-hard { background: rgba(239,68,68,0.14); color: #f87171; border: 1px solid rgba(239,68,68,0.3); }
+
 /* ── History ── */
 .history-section, .fav-section { padding: 4rem 4rem; }
 .history-container, .fav-container {
@@ -611,3 +620,4 @@ body {
     text-align: center;
   }
 }
+