Skill UI

This skill provides comprehensive expertise for senior database administrators to optimize and manage PostgreSQL databases at an advanced level. Use it for deep query analysis via EXPLAIN ANALYZE, implementing advanced features like JSONB indexing, configuring streaming or logical replication, and maintaining database health through VACUUM tuning and monitoring pg_stat views. Ideal for building highly available, high-performance, and resilient system architectures.

A comprehensive guide to deploying and configuring Suricata as a high-performance Intrusion Detection System (IDS) or Intrusion Prevention System (IPS). This skill covers setting up multi-threaded packet processing for high-throughput links, enabling protocol-aware inspection (HTTP, TLS, DNS, SMB), generating structured EVE JSON logs for SIEM ingestion, and integrating advanced signature and anomaly detection capabilities.

This guide details how to harden the Docker daemon (dockerd) configuration by modifying /etc/docker/daemon.json. It implements critical security controls such as user namespace remapping, disabling inter-container communication (ICC), enforcing no-new-privileges, and configuring secure TLS client authentication. Use this method to prevent container breakout, privilege escalation, and lateral movement, ensuring compliance with standards like CIS benchmarks.

A comprehensive guide for assessing the security of JSON Web Token (JWT) implementations. This toolkit details attacks against cryptographic weaknesses, including algorithm confusion (e.g., RS256 to HS256), 'none' attacks, brute-forcing HMAC secrets, and claim manipulation. Ideal for penetration testing and security audits of modern APIs and SSO systems.

This guide provides a comprehensive framework for investigating production issues on the Nexu platform using the Datadog Logs API. It details how to query crash events, analyze OpenClaw stderr output, check gateway startup status, and review API request logs (including 5xx errors). It includes best practices for authentication, filtering by pod/time, and parsing raw JSON logs using Python for actionable insights.

A specialized downstream skill for deep security analysis of JSON Web Tokens (JWT), JWS, and JWE. It guides the identification of vulnerabilities where token components (headers, claims, keying) lead to unauthorized identity assumption or privilege escalation. Use this to trace the full path from token supply to final application acceptance.