well-architected

well-architected is a skill for Claude Code, Codex from jpantsjoha/googlecloud-plugin. It costs 82 tokens per session (726 once invoked), scanned A, original, MIT.

A Google Cloud checklist for reviewing how a cloud system is designed and operated. It covers operations, security, reliability, cost, performance, and environmental impact.

In plain words
What is it for?
Use it when reviewing a Google Cloud architecture, writing a high-level design, checking security, or deciding whether a system is ready to operate.
Why use it?
It gives teams a consistent way to spot design gaps before they cause outages, security problems, unnecessary spending, or poor performance.

Skill for Claude CodeCodex

Part of the googlecloud-plugin plugin — 17 skills, 2 MCP servers 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/jpantsjoha/googlecloud-plugin/well-architected
Any agent
npx skills add jpantsjoha/googlecloud-plugin --skill well-architected
Clone the repo
git clone --depth 1 https://github.com/jpantsjoha/googlecloud-plugin

Made for: Claude Code, Codex.

Or install googlecloud-plugin, the plugin that ships this one along with the rest of its 17 skills, 2 MCP servers.

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 well-architected

README.md
[![agentmods](https://agentmods.dev/badge/skills/jpantsjoha/googlecloud-plugin/well-architected.svg)](https://agentmods.dev/skills/jpantsjoha/googlecloud-plugin/well-architected)
Your own site
<a href="https://agentmods.dev/skills/jpantsjoha/googlecloud-plugin/well-architected"><img src="https://agentmods.dev/badge/skills/jpantsjoha/googlecloud-plugin/well-architected.svg" alt="Measured on agentmods" height="20"></a>
Per session 82 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 726 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 $0.00082 $0.00726
Opus 5 $0.00041 $0.00363
Sonnet 5 $0.00016 $0.00145
Haiku 4.5 $0.00008 $0.00073

Measured 3d ago against content hash 6e190b411a94, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

well-architected 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 3d 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/well-architected/SKILL.md · 70 lines

How it starts

The opening of the file, as written. The whole thing — 70 lines — stays where its author put it; the contents beside it link to each section on GitHub.

GCP Well-Architected Framework

Six pillars that every GCP workload should be evaluated against. Referenced in every HLD, security review, and operational readiness check.

The Six Pillars

Pillar Core Question Key Practices
Operational Excellence Can we build, run, and evolve the system reliably? IaC, CI/CD, runbooks, monitoring-as-code
Security Is the system protected against threats? Least-privilege IAM, encryption, no public exposure by default
Reliability Will the system recover from failures? Multi-region, health checks, SLOs, chaos testing
Cost Optimization Are we spending efficiently? Right-sizing, committed use, lifecycle policies, budget alerts
Performance Can the system handle load and scale? Autoscaling, CDN, caching, regional proximity
Sustainability Are we minimizing environmental impact? Carbon-aware regions, efficient resource use

Quick Review Checklist (per design)

Operational Excellence

  • Infrastructure as Code (Terraform or Config Connector)
  • CI/CD pipeline with automated tests
  • Runbook for each primary failure mode
  • Alerting tied to SLOs

Security

  • Least-privilege IAM throughout
  • No public exposure without intent
  • Secrets in Secret Manager
  • Network deny-by-default

Reliability

  • SLO defined (availability + latency)
  • Health checks configured
  • Multi-zone or multi-region for production
  • Backup and recovery tested

Cost Optimization

  • Right-sized instances (use GCP recommender)
  • Committed use discounts evaluated
  • Budget alerts configured
  • Lifecycle policies on storage

Performance

  • Load tested at target traffic
  • Caching layer evaluated
  • CDN for static assets
  • Autoscaling configured

Sustainability

  • Low-carbon region selected where latency allows
  • Idle resources scheduled for shutdown

References

Read the full file on GitHub · 70 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 3d ago First seen · 70 lines · 82 tokens per session scan A 6e190b411a94

Subscribe to this mod's changes

well-architected is a skill published in the GitHub repository jpantsjoha/googlecloud-plugin (4 stars, last pushed 27d ago), licensed MIT. It adds 82 tokens to every session and 726 once invoked, about $0.0004 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.