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agent-os/brain.md
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Claude Code 6cebab9a4a docs: comprehensive update — bring all Agent OS docs current for LLM onboarding 
All files were 5-7 weeks stale. Updated brain.md (complete service/agent/VPN/cron
inventory), identity.md (current expertise + infra context), CLAUDE.md (full agent
ecosystem table, Citadel tool registry, gotchas), README.md (LLM quick-start guide),
all memory files (current projects, decisions, constraints, persistent facts), and
infra-monitor skill.md (current container list with criticality tiers).

Also fixed: git remote switched from HTTP+embedded-token to SSH, removed references
to decommissioned services (Netbird, WireGuard, Flowise, Zabbix), corrected Ollama
IP (172.27.40.20), TrueNAS IP (172.27.40.220), and added 20+ services/agents that
were built since the last commit.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-06-19 17:15:45 +00:00

6.1 KiB
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Brain

Core facts read by all skills. Keep under 1500 words. Update when infrastructure changes. Last updated: 2026-06-19

Infrastructure

Primary server: 172.27.40.3 — Ubuntu Server LTS, Docker host, all agent runtimes Ollama inference host: 172.27.40.20 — Windows 11 Pro (NxM-AI), Vulkan GPU, Scheduled Task auto-start TrueNAS NAS: 172.27.40.220 (data) / 172.27.6.221 (mgmt) — 35.6 TB, NFS shares for ISOs + Proxmox backups Firewall: OPNsense at 172.27.6.1 (mgmt UI, not routed gateway) Proxmox VE: 172.27.40.2 — PVE 9.1.1, 2× Xeon Gold 6138 (80 vCPUs), 252 GB RAM Hermes Native VM: 172.27.40.30 (VM 108) — dedicated agent VM, Honcho memory, WhatsApp connected Tactical RMM: 172.27.40.4 (VM 101) — remote management for all Nexum clients Home Assistant: 172.27.10.6 (VM 100) — IoT automation Synology DS423+: 172.27.40.80 — Coetzee off-site backup NAS, Active Backup via S2S

VLANs:

VLAN Name Subnet Gateway
40 Servers40 172.27.40.0/24 172.27.40.1
20 Workshop20 172.27.20.0/24 172.27.20.1
10 IoT10 172.27.10.0/24 172.27.10.1

Key Services (172.27.40.3)

Service Port URL Role
Portainer 9443 https://172.27.40.3:9443 Docker management
Nginx Proxy Manager 80/81/443 http://172.27.40.3:81 Reverse proxy, SSL termination
Uptime Kuma 3002 kuma.nxm.co.za HTTP monitoring
Gitea 3000 git.nxm.co.za Self-hosted git, all docs + code
Headscale 8080 headscale.nxm.co.za VPN (self-hosted Tailscale)
Vaultwarden 8222 vault.nxm.co.za Password manager
Open WebUI 3010 chat.nxm.co.za Chat UI for Ollama + MCP
Plane 8095 plane.nxm.co.za Project/task tracking
Homarr 7575 http://172.27.40.3:7575 Dashboard
Grafana 3020 grafana.nxm.co.za Monitoring dashboards
InfluxDB 8086 internal Time-series DB for monitoring
NetBox 8100 netbox.nxm.co.za IPAM, network documentation
NocoDB 8150 rvd.nxm.co.za RvDM birthday DB (personal, NOT Nexum)
InvenTree 8160 inventree.nxm.co.za IT stock + BOM tracking (testing)
Directus 8850 directus.nxm.co.za Nexum client CRM
Nextcloud — — Phone backup
Wetty 8450/8451 terminal.nxm.co.za / term.nxm.co.za Web SSH terminal
RustDesk 21115-21119 internal Self-hosted remote desktop relay
SearXNG 8600 internal Search backend for sam + citadel
iVentoy 26000 internal PXE boot server

AI / Agent Stack

LLM inference:

  • Ollama on 172.27.40.20:11434 — models: gemma4, llama3.1:8b, phi4
  • Claude Code on 172.27.40.3 — primary AI assistant (Anthropic API)
  • Hermes Native on 172.27.40.30 — OpenRouter, Honcho memory, WhatsApp
  • Hermes Cloud on 172.27.40.3:8643 — claude-sonnet-4-6, Citadel MCP wired

Named agents (all Docker on 172.27.40.3 unless noted):

Agent Port Role Schedule
hodor-gateway 8200 Simple Ollama gateway (POST /ask) On-demand
citadel-mcp 8300 MCP SSE+HTTP server, 37 tools Always-on
raven-notify 8400 Discord + Gmail notifications Always-on
sam-research 8500 SearXNG + Ollama research On-demand
qyburn-coder 8700 LLM coding agent (approve/reject) On-demand
maester-reports 8800 NIST CSF compliance reports On-demand
jon-snow 8900 Chief of staff orchestrator Always-on
bran-changelog — Git changelog generator Daily 06:00
varys-monitor — Service HTTP reachability checks Cron every 15 min
tarly-backup 8750 OPNsense config + Proxmox backup monitor Daily 04:00 SAST
hermes-cloud 8643 Claude-powered conversational agent Always-on
hermes-native VM 108 Primary Hermes agent (WhatsApp) Always-on
vexis (workshop) VM 108 Nexum workshop agent (TRMM scripts) On-demand via Hermes

Citadel MCP tools (37): file ops, Docker management, Plane issues/projects/pages, TRMM (agents/scripts/confirm), Directus CRM, Proxmox backups, Qyburn task/approve, Sam research, web search, propose_file_change.

Cron Jobs (172.27.40.3)

Schedule Job Log
Daily 06:00 bran-changelog/run.sh logs/bran.log
Daily 06:00 zenarmor-pull.py monitoring/logs/zenarmor-pull.log
Daily 02:05 tarly hub-backup.sh logs/tarly-backup/hub-backup.log
Every 1 min ovpn-status.py logs/ovpn-status.log
Every 30 min trmm-frappe-sync.py logs/trmm-frappe-sync.log

OpenVPN S2S Sites

Site Tunnel IP Status Notes
bezhuis 172.16.17.2 COMPLETE NAT + DNS overrides, LAN access live
mwp 172.16.17.3 COMPLETE Monitoring live
coetzee 172.16.17.4 COMPLETE Monitoring-only + Active Backup to Synology
fwlaw — PENDING Awaiting migration

Agent OS Runtime

  • Files: /opt/agent-os/ on 172.27.40.3
  • Repo: git.nxm.co.za/admin/agent-os (SSH remote: gitea-local:admin/agent-os.git)
  • Scheduled jobs: cron on 172.27.40.3
  • LLM calls: http://172.27.40.20:11434 (Ollama) or Anthropic API (Claude Code / Hermes)
  • Agent web pages: /opt/sites/<name>/ served at agents.nxm.co.za

Key Paths on Server

  • Docker stacks: /opt/stacks/
  • Agent OS: /opt/agent-os/
  • Agent web pages: /opt/sites/
  • Credentials: ~/.nxm-keys (chmod 600) — NEVER write values elsewhere
  • SSH keys: ~/.ssh/ (ED25519)
  • NxM infrastructure docs: /home/nxm/Documents/NxM Linux Server/
  • Nexum project docs: /home/nxm/Documents/Nexum Projects/

Standing Decisions

  • NPM handles all SSL termination — internal services use HTTP
  • Docker Compose only (no Kubernetes, no Swarm)
  • All destructive actions require explicit confirmation
  • Credentials only in ~/.nxm-keys — never in output, logs, or config files
  • Netbird fully removed (2026-05-28) — VPN is Headscale + OpenVPN S2S
  • WireGuard fully removed (2026-05-30) — replaced by OpenVPN S2S
  • Open WebUI → Citadel MCP: auth_type must be none (empty bearer = silent failure)
  • Docker → OPNsense API: run from host, never from inside a container (HTTP 400)
  • NocoDB = RvDM personal only — never use for Nexum projects
  • Nexum client data layer = Directus CRM
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