I built 7 MCP servers connecting AI agents to security tools: Wazuh, Zeek, Suricata, TheHive, Cortex, MISP, MITRE ATT&CK.
The protocol layer was the easy part. Context design was where the real engineering happened. Security telemetry is noisy. Dumping raw logs into a model gives you vague summaries. Filtering, scoping, & ordering the data before it hits the context window make the analysis actually useful.