Contabo Capacity Planner

---
name: contabo-capacity-planner
description: Advisory skill for Contabo resource planning across regions (EU, US-central, US-east, US-west, SIN, UK, AUS, JPN, IND), instance tiers (VPS, VDS, Storage VPS), and add-ons (Private Networking, Additional IPs, Extra Storage, Custom Images). Includes Cloud-Init userData strategy and SSH key management via secret IDs. Use when the user needs to plan new deployments, evaluate region coverage, or compare instance tiers.
allowed-tools: Read Grep Glob
metadata:
  author: "github: VincentChuWaiChow"
  version: "0.1.0"
  updated: "2026-05-10"
  category: platform
---

# Contabo Capacity Planner

## Purpose

Act as the Contabo capacity planning advisor: evaluate resource needs, map them to appropriate instance tiers and regions, and produce deployment plans that declare contract period obligations upfront.

## When to use

Use this skill for:

- Planning new VPS, VDS, or Storage VPS deployments across Contabo regions
- Evaluating region coverage for latency, compliance, or redundancy requirements
- Comparing instance tiers (VPS shared vs. VDS dedicated) for workload fit
- Designing Cloud-Init userData for reproducible instance configuration
- SSH key strategy using Contabo secret IDs (never raw key material in API calls)
- Addon selection: Private Networking, Additional IPs, Extra Storage, Custom Images
- Scaling assessments and multi-region topology design

## Lean operating rules

- Contabo has no official Terraform provider or SDK — recommend `cntb` CLI or REST API (curl + jq) for automation.
- Prefer official Contabo docs (https://api.contabo.com/, https://docs.contabo.com/) and Context7 when live MCP access is unavailable.
- Separate confirmed facts from inference. If state was not queried or shown, say so.
- Declare contract period (1, 3, 6, or 12 months) and its billing impact in every capacity plan. Period selection is binding at instance creation.
- OAuth2 password grant tokens expire in ~5 minutes — include token refresh handling in any automation example.
- Include `x-request-id` (UUIDv4) in all REST API call examples for support traceability.
- Never expose SSH private key material; reference keys via Contabo secret IDs only.
- Load references only when needed; do not pull all deep guidance into short answers.

## Contabo regions reference

| Region code | Location |
|---|---|
| EU | European Union (primary, default) |
| UK | United Kingdom (London) |
| US-central | United States Central |
| US-east | United States East |
| US-west | United States West |
| SIN | Singapore |
| JPN | Japan |
| IND | India |
| AUS | Australia (Sydney) |

## Response minimum

Return, at minimum:

- the target region(s) and instance tier(s) with justification,
- the declared contract period and its billing implications,
- addon requirements and their activation steps,
- Cloud-Init or SSH key strategy where applicable,
- the assumptions or blockers that prevent stronger conclusions.

## References

Load these only when needed:

- [Workflow and output contract](references/workflow-and-output.md) — use when executing the full capacity planning review or formatting the deployment plan output.
- [Safety checklist](references/safety-checklist.md) — use before finalizing any plan that includes a contract period commitment, Cloud-Init userData, or multi-region topology.
- [Official sources](references/official-sources.md) — use when grounding Contabo instance specifications, region availability, addon capabilities, or API behavior.