diff --git a/web-ui/code.html b/web-ui/code.html
index 85c65c1..5b5a403 100644
--- a/web-ui/code.html
+++ b/web-ui/code.html
@@ -69,39 +69,53 @@
   <!-- CODE SIDEBAR (mirrors #sidebar-code in index.html) -->
   <div class="code-sidebar-wrap">
     <div id="sidebar-code" style="display:flex;flex-direction:column;flex:1;min-height:0;overflow:hidden">
-      <!-- 내부 탭 -->
+      <!-- 상단 탭: 파일 | 설정 -->
       <div style="display:flex;border-bottom:1px solid var(--line);flex-shrink:0;background:var(--panel-2)">
         <button class="code-sb-tab active" id="csb-tab-files"   onclick="setCodeSbTab('files')">파일</button>
-        <button class="code-sb-tab"        id="csb-tab-model"   onclick="setCodeSbTab('model')">모델</button>
         <button class="code-sb-tab"        id="csb-tab-settings"onclick="setCodeSbTab('settings')">설정</button>
       </div>
 
-      <!-- 파일 탭 -->
+      <!-- 파일 탭: 상하 분할 -->
       <div id="csb-files" style="display:flex;flex-direction:column;flex:1;min-height:0">
-        <div style="display:flex;align-items:center;justify-content:space-between;padding:7px 10px;border-bottom:1px solid var(--line);flex-shrink:0">
-          <span id="csb-folder-label" style="font-size:10px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.05em">workspace/code/</span>
-          <div style="display:flex;gap:4px">
-            <button id="code-local-btn" onclick="openLocalFolder()" title="로컬 폴더 열기" style="background:none;border:none;cursor:pointer;color:var(--muted);font-size:14px;line-height:1;padding:0 3px">🖥️</button>
-            <button onclick="codeNewFile()" title="새 파일" style="background:none;border:none;cursor:pointer;color:var(--muted);font-size:16px;line-height:1;padding:0 3px">+</button>
-            <button onclick="codeSbRefresh()" title="새로고침" style="background:none;border:none;cursor:pointer;color:var(--muted);font-size:13px;line-height:1;padding:0 3px">↺</button>
+        <!-- 상단: 파일 트리 -->
+        <div style="display:flex;flex-direction:column;flex:1;min-height:0;border-bottom:1px solid var(--line)">
+          <div style="display:flex;align-items:center;justify-content:space-between;padding:7px 10px;border-bottom:1px solid var(--line);flex-shrink:0">
+            <span id="csb-folder-label" style="font-size:10px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.05em">폴더 없음</span>
+            <div style="display:flex;gap:4px">
+              <button id="code-local-btn" onclick="openLocalFolder()" title="로컬 폴더 열기" style="background:none;border:none;cursor:pointer;color:var(--muted);font-size:14px;line-height:1;padding:0 3px">🖥️</button>
+              <button onclick="codeNewFile()" title="새 파일" style="background:none;border:none;cursor:pointer;color:var(--muted);font-size:16px;line-height:1;padding:0 3px">+</button>
+              <button onclick="codeSbRefresh()" title="새로고침" style="background:none;border:none;cursor:pointer;color:var(--muted);font-size:13px;line-height:1;padding:0 3px">↺</button>
+            </div>
+          </div>
+          <!-- 프로젝트 선택 -->
+          <div id="csb-project-row" style="display:none;align-items:center;gap:5px;padding:5px 8px;border-bottom:1px solid var(--line);flex-shrink:0;background:var(--panel-2)">
+            <span style="font-size:11px;flex-shrink:0">📁</span>
+            <select id="csb-project-sel" onchange="switchProject(this.value||null)"
+              style="flex:1;font-size:11px;padding:3px 5px;background:var(--panel);color:var(--text);border:1px solid var(--line);border-radius:5px;min-width:0;cursor:pointer">
+            </select>
+            <button onclick="deleteActiveProject()" title="현재 프로젝트 삭제" style="flex-shrink:0;background:none;border:none;color:var(--muted);cursor:pointer;font-size:13px;padding:2px 4px;border-radius:4px;line-height:1" onmouseover="this.style.color='#f87171'" onmouseout="this.style.color='var(--muted)'">🗑</button>
+          </div>
+          <div id="csb-file-tree" style="flex:1;overflow-y:auto;padding:4px 0">
+            <div style="padding:12px;color:var(--muted);font-size:11px;text-align:center">로딩 중...</div>
           </div>
         </div>
-        <div id="csb-file-tree" style="flex:1;overflow-y:auto;padding:4px 0">
-          <div style="padding:12px;color:var(--muted);font-size:11px;text-align:center">로딩 중...</div>
-        </div>
-      </div>
 
-      <!-- 모델 탭 -->
-      <div id="csb-model" style="display:none;flex-direction:column;flex:1;min-height:0;overflow-y:auto;padding:14px 12px;gap:12px">
-        <div>
-          <div style="font-size:10px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:6px">Coder AI 모델</div>
-          <select id="csb-model-select" onchange="csbModelChanged()"
-            style="width:100%;font-size:12px;padding:6px 8px;background:var(--panel-2);color:var(--text);border:1px solid var(--line);border-radius:8px;cursor:pointer">
-          </select>
-        </div>
-        <div>
-          <div style="font-size:10px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:6px">세션 초기화</div>
-          <button onclick="codeAiClear()" style="width:100%;padding:7px;border:1px solid var(--line);background:var(--panel-2);color:var(--muted);border-radius:8px;cursor:pointer;font-size:12px">대화 기록 지우기</button>
+        <!-- 하단: 모델 설정 패널 -->
+        <div style="flex-shrink:0;height:46%;min-height:160px;display:flex;flex-direction:column;overflow:hidden">
+          <!-- 모델 선택 -->
+          <div style="display:flex;flex-direction:column;flex:1;overflow-y:auto;padding:10px 12px;gap:8px">
+            <div>
+              <div style="font-size:10px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:5px">Coder AI 모델</div>
+              <select id="csb-model-select" onchange="csbModelChanged()"
+                style="width:100%;font-size:12px;padding:5px 8px;background:var(--panel-2);color:var(--text);border:1px solid var(--line);border-radius:8px;cursor:pointer">
+              </select>
+            </div>
+            <div id="csb-session-project-row" style="display:none">
+              <div style="font-size:10px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:5px">프로젝트</div>
+              <select id="csb-session-project-sel" onchange="switchProject(this.value||null)" style="width:100%;font-size:12px;padding:5px 8px;background:var(--panel-2);color:var(--text);border:1px solid var(--line);border-radius:8px;font-family:monospace;cursor:pointer"></select>
+            </div>
+            <button onclick="codeAiClear()" style="width:100%;padding:7px;border:1px solid var(--line);background:var(--panel-2);color:var(--muted);border-radius:8px;cursor:pointer;font-size:12px">↺ 새 세션</button>
+          </div>
         </div>
       </div>
 
@@ -206,14 +220,32 @@
       <div id="code-ai-panel">
         <div class="code-ai-header">
           <span id="code-ai-title">💻 Coder AI</span>
-          <div class="code-ai-mode-selector">
-            <button class="code-ai-mode-btn active" id="code-ai-mode-code" onclick="setCodeAiMode('code')">💻 Code</button>
-            <button class="code-ai-mode-btn" id="code-ai-mode-ask" onclick="setCodeAiMode('ask')">💬 Ask</button>
+          <div class="code-ai-tech-selector" id="code-ai-tech-selector">
+            <button class="code-ai-tech-btn active" data-tech="auto" onclick="setCodeAiTech('auto')">🤖 자동</button>
+            <button class="code-ai-tech-btn" data-tech="html" onclick="setCodeAiTech('html')">🌐 HTML</button>
+            <button class="code-ai-tech-btn" data-tech="python" onclick="setCodeAiTech('python')">🐍 Python</button>
+            <button class="code-ai-tech-btn" data-tech="node" onclick="setCodeAiTech('node')">🟢 Node</button>
           </div>
         </div>
         <div id="code-ai-messages">
           <div class="code-ai-msg thinking">코드를 선택하고 "AI에게 전송"을 누르거나, 아래에 질문을 입력하세요.</div>
         </div>
+        <!-- 세션 상태 바 -->
+        <div id="code-ai-session-bar" style="display:flex;align-items:center;justify-content:space-between;padding:4px 10px;border-top:1px solid var(--line);background:var(--panel-2);flex-shrink:0;gap:6px">
+          <div style="display:flex;align-items:center;gap:5px;min-width:0;overflow:hidden;flex:1">
+            <span style="font-size:10px;color:var(--muted);flex-shrink:0">세션</span>
+            <span id="code-ai-session-bar-project" style="font-size:11px;color:var(--text);font-family:monospace;overflow:hidden;text-overflow:ellipsis;white-space:nowrap">(전체)</span>
+            <span id="code-ai-session-bar-count" style="font-size:10px;color:var(--muted);flex-shrink:0"></span>
+          </div>
+          <!-- 컨텍스트 사용량 -->
+          <div id="code-ai-ctx-wrap" title="컨텍스트 사용량 (추정)" style="display:none;flex-shrink:0;display:flex;align-items:center;gap:4px;cursor:default">
+            <span id="code-ai-ctx-label" style="font-size:10px;color:var(--muted);white-space:nowrap"></span>
+            <div style="width:60px;height:5px;background:rgba(255,255,255,.1);border-radius:3px;overflow:hidden;flex-shrink:0">
+              <div id="code-ai-ctx-fill" style="height:100%;width:0%;border-radius:3px;transition:width .4s,background .4s"></div>
+            </div>
+          </div>
+          <button onclick="codeAiClear()" title="새 세션 시작" style="flex-shrink:0;background:none;border:1px solid var(--line);border-radius:6px;color:var(--muted);cursor:pointer;padding:2px 8px;font-size:11px;line-height:1.6;white-space:nowrap">↺ 새 세션</button>
+        </div>
         <div class="code-ai-input-row">
           <textarea id="code-ai-input" placeholder="AI에게 질문..." rows="1"
             onkeydown="if(event.key==='Enter'&&!event.shiftKey){event.preventDefault();codeAiSend();}"></textarea>
@@ -231,6 +263,7 @@
         <button onclick="toggleCodeTerminal()" title="닫기" style="background:none;border:none;color:#3d6b4f;cursor:pointer;font-size:14px;padding:0 8px;line-height:1;flex-shrink:0">&times;</button>
       </div>
       <div id="code-term-container" style="flex:1;min-height:0;position:relative;overflow:hidden"></div>
+      <div id="code-terminal-panel" style="position:relative;height:0"></div>
     </div>
   </div>
 
diff --git a/web-ui/code.js b/web-ui/code.js
index ddfdace..2134470 100644
--- a/web-ui/code.js
+++ b/web-ui/code.js
@@ -2108,6 +2108,7 @@ async function codeAiSend() {
   // 모델이 "기존 파일이 있다"는 맥락은 유지하되 매 턴 파일 전체를 반복하지 않음.
   const historyEntry = currentFile ? `[파일: ${_clientBareFileName(currentFile.name)}] ${message}` : message;
   codeAiHistory.push({ role: 'user', content: historyEntry });
+  try { updateSessionPanel(); } catch (_) {}
 
   const thinkEl = codeAiAppend('thinking', '생각 중...');
 
@@ -2463,6 +2464,7 @@ async function codeAiSend() {
     codeAiHistory.push({ role: 'assistant', content: reply || '(응답 없음)' });
     _autoSaveChatSession();
     if (activeProjectName) saveProjectSession(activeProjectName);
+    try { updateSessionPanel(); } catch (_) {}
     thinkEl.classList.remove('streaming'); // Stop cursor animation
     if (!reply) { thinkEl.textContent = '(응답 없음)'; }
     else codeAiRenderMarkdown(thinkEl, reply);
@@ -3891,11 +3893,42 @@ function setCodeSbTab(tab) {
 }
 
 
+function _codeAiCtxMax() {
+  const m = (codeAiModel || '').toLowerCase();
+  if (!m || m.includes('claude')) return 200000;
+  // Common Ollama context windows
+  if (m.includes('llama3') || m.includes('llama-3') || m.includes('qwen')) return 128000;
+  if (m.includes('mistral') || m.includes('mixtral')) return 32000;
+  if (m.includes('gemma')) return 8192;
+  return 32000; // safe default for unknown local models
+}
+
 function updateSessionPanel() {
   const barProj  = document.getElementById('code-ai-session-bar-project');
   const barCount = document.getElementById('code-ai-session-bar-count');
   if (barProj)  barProj.textContent  = activeProjectName || '(전체)';
   if (barCount) barCount.textContent = codeAiHistory.length ? `${codeAiHistory.length}개` : '';
+
+  // Context usage estimate
+  const ctxWrap  = document.getElementById('code-ai-ctx-wrap');
+  const ctxLabel = document.getElementById('code-ai-ctx-label');
+  const ctxFill  = document.getElementById('code-ai-ctx-fill');
+  if (ctxWrap && ctxLabel && ctxFill) {
+    const totalChars = codeAiHistory.reduce((s, m) => s + (m.content || '').length, 0);
+    if (totalChars === 0) {
+      ctxWrap.style.display = 'none';
+    } else {
+      const estTokens = Math.round(totalChars / 4);
+      const maxTokens = _codeAiCtxMax();
+      const pct = Math.min(100, Math.round(estTokens / maxTokens * 100));
+      const kStr = estTokens >= 1000 ? `~${(estTokens/1000).toFixed(1)}k` : `~${estTokens}`;
+      const maxKStr = maxTokens >= 1000 ? `${(maxTokens/1000).toFixed(0)}k` : `${maxTokens}`;
+      ctxLabel.textContent = `${kStr} / ${maxKStr}`;
+      ctxFill.style.width = pct + '%';
+      ctxFill.style.background = pct >= 80 ? '#ef4444' : pct >= 50 ? '#f59e0b' : '#22c55e';
+      ctxWrap.style.display = 'flex';
+    }
+  }
   // 프로젝트 선택기 (항상 업데이트)
   const sel = document.getElementById('csb-session-project-sel');
   const projRow = document.getElementById('csb-session-project-row');