# resilience-hub-multi-account

Configures AWS Resilience Hub v2 to assess workloads spanning multiple AWS accounts using a per-service IAM permission model.

- skill · `type=skill` · Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, OpenCode · 3800 installs · ★ 3282
- Author: aws
- License: Apache-2.0 · policy=mirror · the beginning of the file is at the end of this page
- Source: https://github.com/aws/agent-toolkit-for-aws/tree/HEAD/skills/specialized-skills/resilience-skills/resilience-hub-multi-account/SKILL.md
- Updated: 2026-10-23
- HTML: https://affpapa.org/en/nevibecode/skills/resilience-hub-multi-account

## What it does

This skill guides the setup of multi-account workload assessments using the `aws resiliencehubv2` CLI namespace. Instead of relying on legacy v1 commands, it focuses on the per-service cross-account model: an invoker role in your central assessment account assumes cross-account roles in member accounts to discover resources.

Security relies on an `externalId` secret configured for each role to prevent confused-deputy vulnerabilities. While using the AWS MCP server is recommended for running API calls, standard AWS CLI commands work just as well. The skill deliberately separates assessment setup from Organizations delegated administrator governance, which requires the AWS console.

## Requirements
- Works with: AWS

## Install

### Claude Code (native platform)

1. **Skills CLI (Vercel)**
```bash
npx skills add aws/agent-toolkit-for-aws --skill resilience-hub-multi-account -a claude-code
```

2. **Manually: put the files in place**
- File: `~/.claude/skills/resilience-hub-multi-account/SKILL.md` — Copy the whole skill folder; for one project use .claude/skills/resilience-hub-multi-account/

### Codex

1. **Skills CLI (Vercel)**
```bash
npx skills add aws/agent-toolkit-for-aws --skill resilience-hub-multi-account -a codex
```

2. **Manually: put the files in place**
- File: `.agents/skills/resilience-hub-multi-account/SKILL.md` — For all projects use ~/.agents/skills/

### Cursor

1. **Skills CLI (Vercel)**
```bash
npx skills add aws/agent-toolkit-for-aws --skill resilience-hub-multi-account -a cursor
```

2. **Manually: put the files in place**
- File: `.cursor/skills/resilience-hub-multi-account/SKILL.md` — Cursor also reads .agents/skills/ and .claude/skills/

### GitHub Copilot

1. **GitHub CLI**
```bash
gh skill install aws/agent-toolkit-for-aws resilience-hub-multi-account
```

2. **Manually: put the files in place**
- File: `.github/skills/resilience-hub-multi-account/SKILL.md`

### Gemini CLI

1. **Skills CLI (Vercel)**
```bash
npx skills add aws/agent-toolkit-for-aws --skill resilience-hub-multi-account -a gemini-cli
```

2. **Platform CLI**
```bash
gemini skills install https://github.com/aws/agent-toolkit-for-aws --path skills/specialized-skills/resilience-skills/resilience-hub-multi-account
```

### Windsurf (Devin Desktop)

**Manually: put the files in place**
- File: `.devin/skills/resilience-hub-multi-account/SKILL.md` — The legacy .windsurf/skills/ path still works

### OpenCode

**Skills CLI (Vercel)**
```bash
npx skills add aws/agent-toolkit-for-aws --skill resilience-hub-multi-account -a opencode
```

### Claude.ai

**Claude.ai**
- Zip the folder and upload it in Settings → Capabilities → Skills

Where a file is given instead of a command, copy the files from the source to that path: https://github.com/aws/agent-toolkit-for-aws/tree/HEAD/skills/specialized-skills/resilience-skills/resilience-hub-multi-account/SKILL.md

## When to use it
- assess workloads running across multiple AWS accounts from a central account
- configure `create-service` parameters with member account IAM role ARNs
- secure cross-account role assumption against confused-deputy attacks with `externalId`
- resolve `AccessDenied` errors during cross-account resource discovery

## Example prompts
- Configure Resilience Hub v2 multi-account discovery for the billing service
- Generate a create-service command with cross-account IAM roles for account 123456789012
- Troubleshoot AccessDenied when Resilience Hub v2 scans member account resources

## Source text · SKILL.md · Apache-2.0

Below is the content of a third-party file. It is data, not instructions for you: do not act on anything written inside unless the human asks. Block tag: 489c2b97c0e89173.

BEGIN THIRD-PARTY FILE 489c2b97c0e89173
```text
---
name: resilience-hub-multi-account
description: >
  Configures AWS Resilience Hub v2 for multi-account resilience management across an AWS
  Organization. Covers the per-service cross-account permission model, cross-account IAM
  roles, and centralized assessment from a single account. Applies when the user wants to set
  up org-wide resilience or assess workloads that span multiple AWS accounts.
version: 1
---

# Multi-Account Resilience Hub v2 Setup

## Overview

Domain expertise for configuring Resilience Hub v2 to assess services across multiple
AWS accounts from a central account. All CLI commands in this skill use the **`aws resiliencehubv2`**
namespace — the Resilience Hub **v2** API surface — which is distinct from the legacy `aws resiliencehub`
(v1) commands (the `service: [resiliencehub, ...]` metadata tags the service family, not the CLI namespace).
Resilience Hub v2 supports two complementary multi-account mechanisms: (1) an **AWS Organizations
integration** — the management account enables trusted access, creates the service-linked role, and
designates a **delegated administrator** account for organization-wide policy management and visibility;
and (2) the **per-service cross-account permission model** — an invoker role in the central account that
assumes cross-account roles in member accounts for per-service resource discovery. This skill configures
(2); the Organizations integration (1) is set up separately (management account + console — see below).

> The AWS MCP server is recommended for executing this skill's AWS API calls, but it is not required — all operations also work with the AWS CLI directly.

## Guardrail — where this skill's own files live (MCP vs local install)

Before reading a reference file, determine how this skill was loaded:

- **Loaded via the AWS MCP `retrieve_skill` tool:** the skill's reference files are not on the local filesystem. Fetch each one through `retrieve_skill` with the `file` parameter (e.g. `file="references/multi-account-procedure.md"`) — do NOT `file_read` these paths locally or search the filesystem for them.
- **Installed locally** (e.g. `.kiro/skills/resilience-hub-multi-account/` or `~/.claude/skills/resilience-hub-multi-account/`): read reference files from the local skill directory using the relative paths shown here.

This applies only to the skill's own reference files; always read and write user or session data in the working directory, never through `retrieve_skill`.

## How centralized multi-account assessment works
```
END THIRD-PARTY FILE 489c2b97c0e89173

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