Add comprehensive agent isolation testing guide

TEST_AGENT_ISOLATION.md

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+# 🧪 Agent Builder Isolation Test Guide
+
+## What Was Implemented
+
+Each user now has **completely isolated agent storage**:
+- User A's agents are invisible to User B
+- User B's agents are invisible to User A
+- Each user builds and manages their own agents independently
+
+---
+
+## 🎯 Quick Test (5 Minutes)
+
+### Prerequisites:
+- ✅ Two different browser windows (or one normal + one incognito)
+- ✅ Two different user accounts
+
+### Test Steps:
+
+#### 1. User A Creates an Agent
+
+**Browser 1 (User A):**
+```
+1. Login at: https://huggingface.co/spaces/John-jero/IDWeekAgents
+2. Go to "Agent Builder" tab
+3. Create an agent:
+   - Agent Type: 🏥 Clinical Assistant
+   - Agent Name: "UserA_Agent"
+   - Mission: "Help User A with medical queries"
+   - Select any skills
+4. Click "Build Agent"
+5. Wait for "✅ Agent generated successfully!"
+6. CHECK: "Active Agents" list should show "UserA_Agent"
+```
+
+#### 2. User B Creates a Different Agent
+
+**Browser 2 (User B):**
+```
+1. Login with different credentials
+2. Go to "Agent Builder" tab
+3. CHECK: "Active Agents" should show "_(None yet)_"
+   ✅ User B should NOT see "UserA_Agent"
+4. Create a different agent:
+   - Agent Type: 🔬 Research Assistant
+   - Agent Name: "UserB_Agent"  
+   - Mission: "Help User B with research"
+   - Select any skills
+5. Click "Build Agent"
+6. CHECK: "Active Agents" should show ONLY "UserB_Agent"
+   ✅ Should NOT show "UserA_Agent"
+```
+
+#### 3. Verify Isolation
+
+**Browser 1 (User A):**
+```
+1. Refresh the page or check "Active Agents"
+2. CHECK: Should show ONLY "UserA_Agent"
+   ✅ Should NOT see "UserB_Agent"
+```
+
+#### 4. Test Chat Panel Isolation
+
+**Browser 1 (User A):**
+```
+1. Go to "Chat Panel" tab
+2. Agent dropdown should show ONLY "UserA_Agent"
+3. Select "UserA_Agent" and chat with it
+```
+
+**Browser 2 (User B):**
+```
+1. Go to "Chat Panel" tab
+2. Agent dropdown should show ONLY "UserB_Agent"
+   ✅ Should NOT show "UserA_Agent"
+3. Select "UserB_Agent" and chat with it
+```
+
+---
+
+## ✅ Success Criteria
+
+### PASS if:
+- [ ] User A sees only their agents ("UserA_Agent")
+- [ ] User B sees only their agents ("UserB_Agent")
+- [ ] Chat Panel dropdowns show correct agents per user
+- [ ] No cross-contamination between users
+- [ ] Both users can build agents simultaneously
+
+### FAIL if:
+- [ ] User B sees "UserA_Agent"
+- [ ] User A sees "UserB_Agent"
+- [ ] Agents get mixed up
+- [ ] Building an agent affects other users
+
+---
+
+## 🔬 Advanced Tests
+
+### Test 1: Remove Agent Isolation
+
+**User A:**
+```
+1. Create agent "TestAgent1"
+2. Go to agent removal dropdown
+3. Select and remove "TestAgent1"
+4. CHECK: Agent removed from User A's list
+```
+
+**User B:**
+```
+1. Check if User B was affected
+2. User B's agents should be unchanged
+```
+
+### Test 2: Multiple Agents Per User
+
+**User A:**
+```
+1. Create "AgentA1"
+2. Create "AgentA2"
+3. Create "AgentA3"
+4. CHECK: All three visible to User A only
+```
+
+**User B:**
+```
+1. Create "AgentB1"
+2. CHECK: Only "AgentB1" visible, not User A's agents
+```
+
+### Test 3: Chat History with Agent Isolation
+
+**User A:**
+```
+1. Chat with "AgentA1": "Hi from User A"
+2. Go to Chat Panel
+3. Select "AgentA1"
+4. CHECK: Chat history shows "Hi from User A"
+```
+
+**User B:**
+```
+1. Chat with "AgentB1": "Hi from User B"
+2. CHECK: Does NOT see User A's conversation
+```
+
+---
+
+## 📊 Test Results Template
+
+```
+🧪 AGENT ISOLATION TEST RESULTS
+Date: ___________
+Tester: ___________
+
+✅ Quick Test
+   [ ] User A creates agent → visible only to User A
+   [ ] User B creates agent → visible only to User B
+   [ ] No cross-contamination
+   [ ] Chat Panel dropdowns correct per user
+
+✅ Advanced Tests
+   [ ] Remove agent → affects only that user
+   [ ] Multiple agents → isolated per user
+   [ ] Chat histories → separate per user
+
+Overall Status: PASS / FAIL
+Issues Found: ___________
+```
+
+---
+
+## 🎯 What Was Changed
+
+### Files Modified:
+
+1. **`user_session_manager.py`**
+   - Added `AGENTS_CONFIG` to SessionKeys
+
+2. **`session_helpers.py`**
+   - Added `get_user_agents_config()`
+   - Added `save_user_agent()`
+   - Added `get_user_agent()`
+   - Added `remove_user_agent()`
+   - Added `get_user_agent_names()`
+
+3. **`app.py`**
+   - Updated `load_agent_to_builder()` → per-user
+   - Updated `remove_selected_agent()` → per-user
+   - Updated `chat_selected_agent()` → per-user
+   - Updated `refresh_chat_dropdown()` → per-user
+   - Updated `handle_generate()` → saves to user's session
+   - Updated `chatpanel_handle()` → loads from user's session
+
+4. **`core/ui/ui.py`**
+   - Updated `refresh_active_agents_widgets()` → per-user
+   - Updated `build_active_agents_markdown_and_dropdown()` → per-user
+
+---
+
+## 🐛 Troubleshooting
+
+### Issue: Both users see the same agents
+**Solution:**
+1. Check that you're logged in with DIFFERENT usernames
+2. Verify AUTH_CREDENTIALS is set in HF Spaces
+3. Clear browser cache and re-login
+
+### Issue: "refresh_active_agents_widgets" error
+**Solution:**
+1. Check server logs in HF Spaces
+2. Ensure all functions have `request: gr.Request` parameter
+3. Verify session_helpers is imported correctly
+
+### Issue: Agents disappear after refresh
+**Solution:**
+- This is EXPECTED - sessions are in-memory
+- Agents are cleared when you close browser or space restarts
+- To persist, would need database backend (future enhancement)
+
+---
+
+## 📈 Expected Behavior
+
+### ✅ What Should Work:
+- Each user builds their own agents
+- Agent lists are completely separate
+- Chat Panel shows correct agents per user
+- Remove agent affects only that user
+- Concurrent agent building works
+
+### ⚠️ Known Limitations:
+- Agents lost after browser refresh (in-memory storage)
+- No cross-user agent sharing (by design)
+- Space restart clears all agents
+
+---
+
+## 🚀 Quick Validation
+
+**30-Second Test:**
+
+1. Two browsers, different users
+2. Both go to "Agent Builder"
+3. User A builds "TestA"
+4. User B should see empty list (no agents)
+5. User B builds "TestB"
+6. User A should still see only "TestA"
+
+**If this works → Agent isolation is working! ✅**
+
+---
+
+## 📝 What to Report
+
+If you find issues, note:
+1. Which user saw the problem
+2. What action was performed
+3. What was expected vs what happened
+4. Screenshot if possible
+5. Browser console errors (F12)
+
+---
+
+**Ready to test? Start with the Quick Test above!** 🚀
+
+Your app now supports true multi-user agent building! Each workshop participant will work in their own isolated workspace. 🎉