GCP Landing Zones

GCP Landing Zones is a skill for Claude Code, Codex from niels-emmer/myace. It costs 38 tokens per session (1,134 once invoked), scanned A, original, MIT.

A guide to structuring Google Cloud environments using organizations, folders, projects, networks, access rules, and policy guardrails.

In plain words
What is it for?
Use it when designing projects and folders, reorganizing resources, setting organization policies, choosing network layouts, or fitting a new workload into an existing environment.
Why use it?
It helps teams govern many GCP workloads consistently, with clearer security boundaries, auditing, and cost ownership.

Skill for Claude CodeCodex

Which agent this was written for is unclear — built for aider. Also seen: mentions Codex; built for aider; mentions OpenCode.

Good fit Use it when designing projects and folders, reorganizing resources, setting organization policies, choosing network layouts, or fitting a new workload into an existing environment.

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Install with agentmods
npx agentmods add skills/niels-emmer/myace/gcp-landing-zones
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.

Any agent
npx skills add niels-emmer/myace --skill gcp-landing-zones
Clone the repo
git clone --depth 1 https://github.com/niels-emmer/myace

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for GCP Landing Zones

README.md
[![agentmods](https://agentmods.dev/badge/skills/niels-emmer/myace/gcp-landing-zones/github.svg)](https://agentmods.dev/skills/niels-emmer/myace/gcp-landing-zones)
Your own site
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Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for GCP Landing Zones

Your own site · 80×15
<a href="https://agentmods.dev/skills/niels-emmer/myace/gcp-landing-zones"><img src="https://agentmods.dev/badge/skills/niels-emmer/myace/gcp-landing-zones.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 38 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,134 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00038 $0.01134
Opus 5 $0.00019 $0.00567
Sonnet 5 $0.00008 $0.00227
Haiku 4.5 $0.00004 $0.00113

Measured 8d ago against content hash d74cf51faf2a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

GCP Landing Zones 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 8d 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.

collections/additional/gcp/skills/gcp-landing-zones/SKILL.md · 103 lines

How it starts

The opening of the file, as written. The whole thing — 103 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Purpose

The Google Cloud Adoption Framework (GCAF) is the set of practices for governing GCP at scale. This skill covers the governance essentials you need to design a landing zone that is secure, auditable, and cost-attributable — the resource hierarchy, folder/project design, IAM scoping, VPC topology, and Organization-policy guardrails. It deliberately does not reproduce the full landing-zone accelerator (Google Cloud's Enterprise Foundations blueprint / Cloud Foundation Toolkit); the accelerator is a reference for the complete, opinionated implementation, while this skill is the decision layer you apply to any GCP environment.

When to use it

When designing or reviewing a GCP environment's structure — a new project, a folder reorganization, an Organization-policy/guardrail change, or a network-topology decision. Also before scaffolding a new workload into an existing landing zone, to confirm it fits the established pattern.

Resource hierarchy

  • Use the hierarchy Organization → Folders → Projects → Resources, with IAM and Organization policies applied at each level and inherited down.
  • Separate platform (bootstrap, networking, security, logging) from workload folders, so governance applied at the platform level inherits down without entangling workload-specific policy.
  • Keep the hierarchy shallow and meaningful — a handful of folders, each with a clear purpose, not a deep tree that mirrors the org chart.
  • Apply IAM and Organization policies at the highest level where it's uniformly correct, and let it inherit; override only where a genuine exception exists (and document it per iac-expert's exception-documentation skill).

Folder and project design

  • Use projects as scale units and trust boundaries, not cost centers (cost attribution belongs to labels, not project boundaries).
  • Group projects by environment/workload boundary (e.g. a prod/nonprod split, or one per major workload) so blast radius and policy scope stay manageable.
  • Keep the bootstrap/organization project for organization-wide administration and shared infrastructure only — never run workloads in it. Use dedicated projects for shared services (logging, networking) and for each workload/environment.
  • Avoid a single project for everything, and avoid one project per microservice — both extremes make governance either impossible or unmanageable.

Read the full file on GitHub · 103 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. 8d ago First seen · 103 lines · 38 tokens per session scan A d74cf51faf2a

Subscribe to this mod's changes

GCP Landing Zones is a skill published in the GitHub repository niels-emmer/myace (1 stars, last pushed 5d ago), licensed MIT. It adds 38 tokens to every session and 1,134 once invoked, about $0.0002 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 2026-09-03.