AWS agent-toolkit documentation change
Summary
Renamed product to Agent Toolkit; updated tool names and descriptions; added new tools: aws___run_script, aws___get_presigned_url, aws___get_tasks; removed preview label
Security assessment
Added aws___run_script which executes Python code in a sandboxed environment and aws___get_presigned_url for secure S3 access. These document security features but don't address existing vulnerabilities.