multi-cloud

A guide to deliberately running a system across two or more cloud providers, such as AWS and Google Cloud. It explains when provider diversity is worth the extra operational work.

In plain words
What is it for?
Deciding whether to use multiple clouds, assessing portability tools such as Kubernetes, and weighing regulation, disaster recovery, vendor leverage, and provider-specific services.
Why use it?
It helps teams avoid adding a second cloud without a clear reason. It makes the ongoing costs of different access controls, networks, billing systems, and support procedures visible.

Skill for Claude CodeCodex

Part of the devops-skills plugin — 56 skills shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/arjunprabhulal/devops-skills/multi-cloud
Any agent
npx skills add arjunprabhulal/devops-skills --skill multi-cloud
Clone the repo
git clone --depth 1 https://github.com/arjunprabhulal/devops-skills

Made for: Claude Code, Codex.

Or install devops-skills, the plugin that ships this one along with the rest of its 56 skills.

Per session 100 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,115 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00100 $0.01115
Opus 5 $0.00050 $0.00558
Sonnet 5 $0.00020 $0.00223
Haiku 4.5 $0.00010 $0.00112

Measured 2d ago against content hash bd5e2586acf6, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

multi-cloud scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/cloud/multi-cloud/SKILL.md · 91 lines

How it starts

The opening of the file, as written. The whole thing — 91 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Multi-Cloud

Multi-cloud is usually sold as risk reduction and delivered as a tax: a second provider means a second set of IAM models, networking primitives, billing dashboards, and on-call runbooks to maintain, permanently, whether or not you ever use the failover it was meant to provide. The question is never whether multi-cloud is possible — it always is — but whether the ongoing operational cost buys something the business actually needs.

Most teams that end up multi-cloud didn't decide to; they acquired a company, or a team picked a different provider, or a vendor tool only ran on one cloud. Multi-cloud should be a decision with a stated reason, not something you discover you're already doing.

1. Name the reason before building anything

The legitimate reasons are narrow: a regulatory requirement to avoid a single vendor, genuine negotiating leverage at large spend, a specific managed service only one provider offers, or disaster-recovery requirements that mandate provider diversity. "Just in case we need to switch" is not on that list — it's a hedge against a risk that's rarely priced against the daily cost of carrying it.

Done when: the reason for running on more than one provider is written down and would survive someone asking "why not just use one?"

2. Separate true portability from lowest-common-denominator design

Building only on the intersection of features every provider supports means giving up each provider's best managed offerings — a managed database with strong consistency guarantees, a purpose-built queue — in favor of something you self-run so it's portable. That trade is sometimes right and often isn't; know which one you're making. A portability layer like Kubernetes gets you portable compute, not portable everything — data services, IAM, and networking still differ underneath. See kubernetes-operations for running that layer, and cloud-architecture for the managed-vs-self-run tradeoff this decision is really an instance of.

Read the full file on GitHub · 91 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 91 lines · 100 tokens per session scan A bd5e2586acf6

Subscribe to this mod's changes

multi-cloud is a skill published in the GitHub repository arjunprabhulal/devops-skills (2 stars, last pushed 8d ago), licensed MIT. It adds 100 tokens to every session and 1,115 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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