Kyle 2026-09-22: tear down MCP across the fleet. Drops the mcp/mcpkg imports
(agent, mcp user, packages), the unikernel-host agent overrides and kvm group,
the mcp-br0 bridge + FORWARD drop, the low-port sysctl (only MCNS/mc-proxy
needed it; Mattermost binds 8065), MCP firewall ports (53, 8443, 9443, 9444,
9555; keeps 443 for tailscale serve and 8080 for open-webui) and the MCNS
nameservers/~mcp.metacircular.net domain. State under /srv/mcp is kept.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
kyleandClaude Opus 5.5
b387d86f28