diff --git a/site/app.py b/site/app.py
index b91a925..e896fb7 100644
--- a/site/app.py
+++ b/site/app.py
@@ -6,7 +6,7 @@ from routes.main import bp as main_bp
 from routes.api import bp as api_bp
 from routes.api_test import bp as api_test_bp
 
-VERSION = "1.0.82"
+VERSION = "1.0.83"
 
 app = Flask(__name__, template_folder="templates", static_folder="static")
 app.config["NUBES_API_ENDPOINT"] = os.getenv("NUBES_API_ENDPOINT", "https://lk-api-gateway-dev.ngcloud.ru/api/v1/svc")
diff --git a/site/templates/index.html b/site/templates/index.html
index 96f3bdd..cc13c6e 100644
--- a/site/templates/index.html
+++ b/site/templates/index.html
@@ -211,27 +211,39 @@ function showParams(opId,opName){
         const params=data.params||data;
         const form=document.getElementById('params-form');
         const displayNameValue=isCreate?makeCreateDisplayName():'';
-        form.innerHTML=(opName==='create'?`<div class="param-row"><label class="req">displayName</label><span style="font-size:12px;color:var(--muted);white-space:nowrap;">${AUTOTEST_PREFIX}</span><input type="text" id="param-displayname" value="${displayNameValue}" autocomplete="off"></div>`:'')
+        form.innerHTML=(opName==='create'?`<div class="param-row"><label class="req">displayName</label><span style="font-size:12px;color:var(--muted);white-space:nowrap;">${AUTOTEST_PREFIX}</span><input type="text" id="param-displayname" value="${_esc(displayNameValue)}" autocomplete="off"></div>`:'')
             + params.map(p=>{
             const req=p.isRequired;
             const hasDfl=p.defaultValue!==null&&p.defaultValue!==undefined&&p.defaultValue!=='';
             const labelCls=req?(hasDfl?'req':'req-nodfl'):'';
             const dfl=hasDfl?p.defaultValue:(req?'':'');
             const vl=p.valueList;
+            const isMap=(p.dataType||'').startsWith('map');
             let input;
             if(vl&&Array.isArray(vl)){
-                input=`<select name="p_${p.svcOperationCfsParamId}" data-type="${p.dataType}">${vl.map(v=>`<option value="${v}" ${v==dfl?'selected':''}>${v}</option>`).join('')}</select>`;
+                input=`<select name="p_${p.svcOperationCfsParamId}" data-type="${_esc(p.dataType)}">${vl.map(v=>`<option value="${_esc(v)}" ${v==dfl?'selected':''}>${_esc(v)}</option>`).join('')}</select>`;
             }else if(p.dataType==='boolean'){
                 input=`<select name="p_${p.svcOperationCfsParamId}" data-type="boolean"><option value="true" ${dfl==='true'||dfl===true?'selected':''}>true</option><option value="false" ${dfl==='false'||dfl===false?'selected':''}>false</option></select>`;
             }else{
-                input=`<input type="text" name="p_${p.svcOperationCfsParamId}" value="${dfl}" placeholder="${req&&!hasDfl?'обязательно':''}">`;
+                const dt=isMap?'map':'';
+                input=`<input type="text" name="p_${p.svcOperationCfsParamId}" value="${_esc(dfl)}" data-type="${dt}" placeholder="${req&&!hasDfl?'обязательно':''}"${isMap?' onblur="validateJson(this)"':''}>`;
+                if(isMap) input+=`<span class="json-err" style="display:none;color:var(--destructive);font-size:10px;margin-left:4px;"></span>`;
             }
-            return `<div class="param-row"><label class="${labelCls}">${p.name}</label>${input}</div>`;
+            return `<div class="param-row"><label class="${labelCls}">${_esc(p.name)}</label>${input}</div>`;
         }).join('');
         const btn=document.getElementById('btn-test');
         btn.style.display='inline-flex';
         btn.textContent='Запустить';
         btn.onclick=()=>{
+            // Проверить ВСЕ map-поля перед отправкой
+            let bad=[];
+            document.querySelectorAll('#params-form [data-type="map"]').forEach(el=>{
+                if(!validateJson(el,true)) bad.push(el);
+            });
+            if(bad.length>0){
+                document.getElementById('test-status').innerHTML=`<span class="badge">Ошибка</span> ${bad.length} полей с невалидным JSON — поправьте и нажмите Запустить снова`;
+                return;
+            }
             const pp={};
             document.querySelectorAll('#params-form [name^="p_"]').forEach(el=>{
                 let v=el.value;
@@ -245,6 +257,30 @@ function showParams(opId,opName){
     });
 }
 
+// === Хелперы ===
+
+function _esc(s){
+    /* HTML-экранирование: " → &quot;  & → &amp;  < → &lt; */
+    return String(s||'').replace(/&/g,'&amp;').replace(/"/g,'&quot;').replace(/</g,'&lt;');
+}
+
+function validateJson(el,quiet){
+    /* Проверить что значение в поле — валидный JSON.
+       quiet=true — не менять внешний вид (для batch-проверки перед отправкой). */
+    const errEl=el.parentElement.querySelector('.json-err');
+    const v=el.value.trim();
+    if(!v) return true;  // пусто — ок
+    try{ JSON.parse(v); }
+    catch(e){
+        if(!quiet&&errEl){ errEl.style.display='inline'; errEl.textContent='Ошибка JSON: '+e.message; }
+        el.style.borderColor='var(--destructive)';
+        return false;
+    }
+    if(!quiet&&errEl) errEl.style.display='none';
+    el.style.borderColor='';
+    return true;
+}
+
 function setFinishedState(statusText, statusClass, statusError, statusDuration, instanceName){
     const btn=document.getElementById('btn-test');
     btn.disabled=false;