Add Slack summary for security fix

Co-authored-by: Rip&Tear <theCyberTech@users.noreply.github.com>

SLACK_SUMMARY.md

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+# Security Fix: CodeInterpreterTool Sandbox Escape (F-001)
+
+## 🔒 Critical Security Vulnerability Fixed
+
+**Vulnerability**: Sandbox escape in `CodeInterpreterTool` fallback leads to host RCE
+
+**Impact**: Attackers could execute arbitrary commands on the host when Docker was unavailable
+
+## ✅ What Was Fixed
+
+1. **Removed insecure fallback**: The tool now requires Docker for safe execution and fails closed when Docker is unavailable
+2. **Security-first approach**: Users must explicitly enable `unsafe_mode=True` if they cannot use Docker
+3. **Clear warnings**: Added comprehensive documentation about the security requirements
+
+## 📋 Changes
+
+- Modified: `code_interpreter_tool.py` - Removed insecure fallback, added RuntimeError when Docker unavailable
+- Modified: `test_code_interpreter_tool.py` - Updated tests, added sandbox escape demonstration
+- Modified: `README.md` - Added security requirements and best practices
+- Added: `SECURITY_FIX_F001.md` - Complete vulnerability analysis and fix documentation
+
+## 🔗 Links
+
+- **Branch**: `cursor/code-interpreter-sandbox-escape-c0a3`
+- **Commits**: 6ee0cacd7, 31ab821bb
+- **Files Changed**: 4 files, +317/-42 lines
+
+## 🎯 For Users
+
+### Before (Insecure)
+```python
+tool = CodeInterpreterTool()  # Would silently fall back to bypassable sandbox
+```
+
+### After (Secure)
+```python
+# Requires Docker (recommended)
+tool = CodeInterpreterTool()
+
+# OR explicitly acknowledge risk
+tool = CodeInterpreterTool(unsafe_mode=True)  # Only for trusted code!
+```
+
+## 📚 Documentation
+
+See `SECURITY_FIX_F001.md` for complete details including:
+- Vulnerability description
+- Proof of concept
+- Migration guide
+- Testing approach
+
+---
+
+Ready for review and merge to protect users from this critical RCE vulnerability.