diff --git a/docs/pr-media/1820/no-agent-cron-edit.png b/docs/pr-media/1820/no-agent-cron-edit.png
new file mode 100644
index 00000000..ffb1af9f
Binary files /dev/null and b/docs/pr-media/1820/no-agent-cron-edit.png differ
diff --git a/static/panels.js b/static/panels.js
index 0add57b8..76cfd2e7 100644
--- a/static/panels.js
+++ b/static/panels.js
@@ -422,6 +422,9 @@ function _renderCronDetail(job){
   const schedule = job.schedule_display || (job.schedule && job.schedule.expression) || '';
   const skills = Array.isArray(job.skills) && job.skills.length ? job.skills.join(', ') : '—';
   const deliver = job.deliver || 'local';
+  const isNoAgent = !!job.no_agent;
+  const cronJobMode = isNoAgent ? 'no-agent' : 'agent';
+  const script = job.script || '';
   const profileLabel = _cronProfileLabel(job.profile);
   const profileTitle = _cronProfileTitle(job.profile);
   const lastError = job.last_error ? `<div class="detail-row"><div class="detail-row-label">${esc(t('error_prefix').replace(/:\s*$/,''))}</div><div class="detail-row-value" style="color:var(--accent-text)">${esc(job.last_error)}</div></div>` : '';
@@ -450,6 +453,8 @@ function _renderCronDetail(job){
         <div class="detail-row"><div class="detail-row-label">${esc(t('cron_next'))}</div><div class="detail-row-value">${esc(nextRun)}</div></div>
         <div class="detail-row"><div class="detail-row-label">${esc(t('cron_last'))}</div><div class="detail-row-value">${esc(lastRun)}</div></div>
         <div class="detail-row"><div class="detail-row-label">Deliver</div><div class="detail-row-value">${esc(deliver)}</div></div>
+        <div class="detail-row"><div class="detail-row-label">Mode</div><div class="detail-row-value"><span class="detail-badge" id="cronJobMode">${esc(cronJobMode)}</span></div></div>
+        ${isNoAgent ? `<div class="detail-row"><div class="detail-row-label">No-agent script</div><div class="detail-row-value"><code>${esc(script || '—')}</code></div></div>` : ''}
         <div class="detail-row"><div class="detail-row-label">${esc(t('cron_profile_label') || 'Profile')}</div><div class="detail-row-value"><span class="detail-badge active" title="${esc(profileTitle)}">${esc(profileLabel)}</span></div></div>
         <div class="detail-row"><div class="detail-row-label">Skills</div><div class="detail-row-value">${esc(skills)}</div></div>
         ${lastError}
@@ -685,6 +690,8 @@ function openCronEdit(job){
     prompt: job.prompt || '',
     deliver: job.deliver || 'local',
     profile: job.profile || '',
+    no_agent: !!job.no_agent,
+    script: job.script || '',
     isEdit: true,
   });
   if (!_cronSkillsCache) {
@@ -695,11 +702,12 @@ function openCronEdit(job){
   loadCronProfiles().then(()=>_refreshCronProfileSelect(job.profile || '')).catch(()=>{});
 }
 
-function _renderCronForm({ name, schedule, prompt, deliver, profile, isEdit }){
+function _renderCronForm({ name, schedule, prompt, deliver, profile, no_agent=false, script='', isEdit }){
   const title = $('taskDetailTitle');
   const body = $('taskDetailBody');
   const empty = $('taskDetailEmpty');
   if (!body || !title) return;
+  const isNoAgent = !!no_agent;
   title.textContent = isEdit ? (t('edit') + ' · ' + (name || schedule || t('scheduled_jobs'))) : t('new_job');
   const deliverOpt = (v,l) => `<option value="${v}"${deliver===v?' selected':''}>${esc(l)}</option>`;
   body.innerHTML = `
@@ -714,9 +722,10 @@ function _renderCronForm({ name, schedule, prompt, deliver, profile, isEdit }){
           <input type="text" id="cronFormSchedule" value="${esc(schedule || '')}" placeholder="0 9 * * *  —  every 1h  —  @daily" autocomplete="off" required>
           <div class="detail-form-hint">${esc(t('cron_schedule_hint') || "Cron expression or shorthand like 'every 1h'.")}</div>
         </div>
-        <div class="detail-form-row">
+        <div class="detail-form-row ${isNoAgent ? 'cron-no-agent-prompt-row' : ''}">
           <label for="cronFormPrompt">${esc(t('cron_prompt_label') || 'Prompt')}</label>
-          <textarea id="cronFormPrompt" rows="6" placeholder="${esc(t('cron_prompt_placeholder') || 'Must be self-contained')}" required>${esc(prompt || '')}</textarea>
+          <textarea id="cronFormPrompt" rows="6" placeholder="${esc(t('cron_prompt_placeholder') || 'Must be self-contained')}"${isNoAgent ? ' disabled' : ' required'}>${esc(prompt || '')}</textarea>
+          ${isNoAgent ? `<div class="detail-form-hint cron-no-agent-hint">No-agent mode runs the configured script directly; Prompt is unused. No-agent script: <code>${esc(script || '—')}</code></div>` : ''}
         </div>
         <div class="detail-form-row">
           <label for="cronFormDeliver">${esc(t('cron_deliver_label') || 'Deliver output to')}</label>
@@ -825,12 +834,14 @@ async function saveCronForm(){
   const prompt=promptEl.value.trim();
   const deliver=delivEl?delivEl.value:'local';
   const profile=profileEl?profileEl.value:'';
+  const isNoAgent = !!(_currentCronDetail && _currentCronDetail.no_agent);
   errEl.style.display='none';
   if(!schedule){errEl.textContent=t('cron_schedule_required_example');errEl.style.display='';return;}
-  if(!prompt){errEl.textContent=t('cron_prompt_required');errEl.style.display='';return;}
+  if(!isNoAgent && !prompt){errEl.textContent=t('cron_prompt_required');errEl.style.display='';return;}
   try{
     if (_editingCronId) {
-      const updates = {job_id: _editingCronId, schedule, prompt, profile: profile};
+      const updates = {job_id: _editingCronId, schedule, profile: profile};
+      if (!isNoAgent) updates.prompt = prompt;
       if (name) updates.name = name;
       await api('/api/crons/update', {method:'POST', body: JSON.stringify(updates)});
       const editedId = _editingCronId;
diff --git a/tests/test_cron_no_agent_edit.py b/tests/test_cron_no_agent_edit.py
new file mode 100644
index 00000000..a77a3590
--- /dev/null
+++ b/tests/test_cron_no_agent_edit.py
@@ -0,0 +1,71 @@
+"""Regression coverage for issue #1820: no-agent cron edits do not require prompts."""
+
+from __future__ import annotations
+
+import re
+from pathlib import Path
+
+ROOT = Path(__file__).resolve().parents[1]
+PANELS_JS = (ROOT / "static" / "panels.js").read_text()
+
+
+def _function_body(name: str) -> str:
+    marker = f"function {name}("
+    start = PANELS_JS.find(marker)
+    assert start != -1, f"{name} not found"
+    paren = PANELS_JS.find("(", start)
+    assert paren != -1, f"{name} params not found"
+    depth = 0
+    for idx in range(paren, len(PANELS_JS)):
+        ch = PANELS_JS[idx]
+        if ch == "(":
+            depth += 1
+        elif ch == ")":
+            depth -= 1
+            if depth == 0:
+                brace = PANELS_JS.find("{", idx)
+                break
+    else:
+        raise AssertionError(f"{name} params did not terminate")
+    assert brace != -1, f"{name} body not found"
+    depth = 0
+    for idx in range(brace, len(PANELS_JS)):
+        ch = PANELS_JS[idx]
+        if ch == "{":
+            depth += 1
+        elif ch == "}":
+            depth -= 1
+            if depth == 0:
+                return PANELS_JS[brace + 1 : idx]
+    raise AssertionError(f"{name} body did not terminate")
+
+
+def test_open_cron_edit_plumbs_no_agent_and_script_to_form():
+    body = _function_body("openCronEdit")
+    assert "no_agent: !!job.no_agent" in body
+    assert "script: job.script || ''" in body
+
+
+def test_no_agent_form_drops_prompt_required_attribute_and_shows_script_context():
+    body = _function_body("_renderCronForm")
+    assert "no_agent" in body and "script" in body
+    assert "const isNoAgent = !!no_agent;" in body
+    assert "cron-no-agent-hint" in body
+    assert "No-agent script" in body
+    assert "${isNoAgent ? ' disabled' : ' required'}" in body
+
+
+def test_save_cron_form_keeps_agent_prompt_required_but_skips_no_agent_edits():
+    body = _function_body("saveCronForm")
+    assert "const isNoAgent = !!(_currentCronDetail && _currentCronDetail.no_agent);" in body
+    assert "if(!isNoAgent && !prompt)" in body
+    assert "cron_prompt_required" in body
+    assert "if (!isNoAgent) updates.prompt = prompt;" in body
+
+
+def test_no_agent_detail_displays_mode_and_script():
+    body = _function_body("_renderCronDetail")
+    assert "const isNoAgent = !!job.no_agent;" in body
+    assert "No-agent script" in body
+    assert "cronJobMode" in body
+    assert "job.script" in body