well-architected-reviewer

well-architected-reviewer is an agent for coding agents from aws-samples/sample-claude-code-plugins-for-startups. It costs 59 tokens per session (1,757 once invoked), scanned A, original, MIT-0.

A specialist for reviewing workloads against the AWS Well-Architected Framework, a set of guidelines for designing reliable and secure cloud systems. It examines the framework’s six areas and gathers evidence from an AWS environment.

In plain words
What is it for?
Use it for a formal AWS architecture review, a six-area workload audit, or an assessment of risks in an AWS environment.
Why use it?
It helps identify high-risk architecture problems and turn them into an improvement plan.

Agent

Part of the aws-dev-toolkit plugin — 35 skills, 11 agents, 3 MCP servers shipped together

About the project

Claude Code Plugin Marketplace for Startups on AWS is a collection of Claude Code plugins for teams building, migrating, or reviewing applications on AWS. Developers add the marketplace and install plugins that provide skills, sub-agents, and MCP servers. The catalogue entries are components of this marketplace.

aws-samples/sample-claude-code-plugins-for-startups · 13 stars · on GitHub

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 agents/aws-samples/sample-claude-code-plugins-for-startups/well-architected-reviewer
Clone the repo
git clone --depth 1 https://github.com/aws-samples/sample-claude-code-plugins-for-startups

Or install aws-dev-toolkit, the plugin that ships this one along with the rest of its 35 skills, 11 agents, 3 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-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/aws-samples/sample-claude-code-plugins-for-startups/well-architected-reviewer.svg)](https://agentmods.dev/agents/aws-samples/sample-claude-code-plugins-for-startups/well-architected-reviewer)
Your own site
<a href="https://agentmods.dev/agents/aws-samples/sample-claude-code-plugins-for-startups/well-architected-reviewer"><img src="https://agentmods.dev/badge/agents/aws-samples/sample-claude-code-plugins-for-startups/well-architected-reviewer.svg" alt="Measured on agentmods" height="20"></a>
Per session 59 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,757 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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 $0.00059 $0.01757
Opus 5 $0.00030 $0.00879
Sonnet 5 $0.00012 $0.00351
Haiku 4.5 $0.00006 $0.00176

Measured 5d ago against content hash 7cd373c34772, 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-reviewer 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 5d 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.

plugins/aws-dev-toolkit/agents/well-architected-reviewer.md · 164 lines

The source is not reproduced here

Licensed MIT-0

The repository is licensed MIT-0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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. 5d ago First seen · 164 lines · 59 tokens per session scan A 7cd373c34772

Subscribe to this mod's changes

well-architected-reviewer is an agent published in the GitHub repository aws-samples/sample-claude-code-plugins-for-startups (13 stars, last pushed 22d ago), licensed MIT-0. It adds 59 tokens to every session and 1,757 once invoked, about $0.0003 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 2026-08-30.

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