version: "1.0.0" name: homelab-research description: How to research version-correct, canonical answers for homelab software (Proxmox, Docker, Dockhand, Portainer, nginx-proxy-manager, etc.) without being misled by stale search results. Load this whenever you are not fully confident about a configuration, command, API field, or behavior before acting on a homelab system.

Researching homelab problems correctly

Homelab software moves fast and the web is full of outdated guides. A confidently-wrong answer here can cause an outage or data loss. When you are not certain, slow down and research the version-correct, canonical answer before acting.

Rule 0 — establish the version first

Before trusting any guidance, find out what the system is actually running:

• Proxmox: pveversion (or pveversion -v), or API GET /version. PVE 8.x vs 9.x differ in real ways.
• Docker: docker version, docker compose version.
• Dockhand / Portainer / Dockge / NPM: check the app's version (UI footer, /api version endpoint, image

tag). MCP/API clients are often version-matched (e.g. Portainer MCP ~=2.42 ↔ Portainer 2.42.x).

Then scope every search and every doc page to that version. A correct answer for 8.x can be wrong for 9.x.

Rule 1 — prefer canonical, AI-optimized sources

Order of trust:

1. Official versioned docs for the exact version (see reference/doc-sources.md).
2. `llms.txt` / AI-optimized docs when the project publishes them (e.g. Docker:

https://docs.docker.com/llms.txt). These are clean, current, token-efficient — fetch them first.

1. Official API viewers / OpenAPI specs for exact field names and shapes (Proxmox API viewer; Portainer

api-docs).

1. Project source / release notes / changelog for "did this change recently?" questions.
2. Forums / blogs / Reddit only to find leads, then verify against the canonical source. Treat any

undated or old post as suspect — check whether it predates the running version.

The curated, maintained source list lives in `reference/doc-sources.md`. Consult it; keep it updated when you find a better source.

Rule 2 — watch for version-rot signals

Be extra skeptical when you see:

• Commands or kernel modules that may have been removed/renamed (e.g. Proxmox vfio_virqfd is gone on 9.x).
• API fields or endpoints that moved (e.g. PVE 9.x VNC proxy changes).
• "Just set X" guides with no date and no version — verify before applying.
• Advice that contradicts the official docs — the official docs win for the running version.

Rule 3 — verify on the actual system (read-only)

Confirm assumptions against the live system using read-only checks before changing anything:

• Does the field/endpoint exist on this version? (query it)
• Does the device/path/storage actually exist? (lspci, lsblk, list storage — read-only)
• What is the current config right now? (read it before editing)

If reality contradicts the doc/plan, stop and reconcile — don't push a change built on a wrong premise.

Rule 4 — when still uncertain, say so

If after researching you're still not confident, tell the user what you found, what's ambiguous, and what the safest next step is (often: a read-only test, a snapshot first, or asking them to confirm an assumption). Do not guess on destructive operations.

How this composes with safety

Research establishes what the correct action is; the `homelab-safety` skill governs how you get approval to perform it. Use both: research to be right, safety to be safe.