# migration-readiness

Reads your code, dependencies and infrastructure, then reports what stands in the way of moving a workload to AWS. Useful before a migration when the starting point is unclear.

- skill · `type=skill` · Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, OpenCode · 540 installs · ★ 276
- Author: aws-samples
- License: MIT-0 · policy=mirror · the beginning of the file is at the end of this page
- Source: https://github.com/aws-samples/sample-well-architected-skills-and-steering/tree/HEAD/skills/migration-readiness/SKILL.md
- Updated: 2026-10-06
- HTML: https://affpapa.org/en/nevibecode/skills/migration-readiness

## What it does

The skill runs in seven steps. It first asks which workload you plan to move and why, then scans the codebase for languages, frameworks, databases, message brokers and external APIs. Infrastructure configs come next: servers, network, storage, backups, monitoring. Every finding is tied to a file and line number, so you can check the claim instead of trusting it.

Dependency mapping is its own step — service-to-service calls, databases read by several services, latency-sensitive links. The skill stops there and waits for your confirmation before continuing. After that it picks one of the 7 Rs (rehost, replatform, refactor and the rest) for each component, justified by code evidence, and rates readiness across six pillars from operational excellence to sustainability.

Hard blockers get flagged early: OS-specific dependencies with no cloud equivalent, proprietary software with licensing restrictions, hardware-bound code, IPs and hostnames hardcoded in the application, local filesystem dependencies. It is not meant for architecture decision records, single-pillar assessments or cost optimization of workloads already running in AWS.

## Requirements
- Works with: AWS

## Install

### Claude Code (native platform)

1. **Skills CLI (Vercel)**
```bash
npx skills add aws-samples/sample-well-architected-skills-and-steering --skill migration-readiness -a claude-code
```

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

### Codex

1. **Skills CLI (Vercel)**
```bash
npx skills add aws-samples/sample-well-architected-skills-and-steering --skill migration-readiness -a codex
```

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

### Cursor

1. **Skills CLI (Vercel)**
```bash
npx skills add aws-samples/sample-well-architected-skills-and-steering --skill migration-readiness -a cursor
```

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

### GitHub Copilot

1. **GitHub CLI**
```bash
gh skill install aws-samples/sample-well-architected-skills-and-steering migration-readiness
```

2. **Manually: put the files in place**
- File: `.github/skills/migration-readiness/SKILL.md`

### Gemini CLI

1. **Skills CLI (Vercel)**
```bash
npx skills add aws-samples/sample-well-architected-skills-and-steering --skill migration-readiness -a gemini-cli
```

2. **Platform CLI**
```bash
gemini skills install https://github.com/aws-samples/sample-well-architected-skills-and-steering --path skills/migration-readiness
```

### Windsurf (Devin Desktop)

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

### OpenCode

**Skills CLI (Vercel)**
```bash
npx skills add aws-samples/sample-well-architected-skills-and-steering --skill migration-readiness -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-samples/sample-well-architected-skills-and-steering/tree/HEAD/skills/migration-readiness/SKILL.md

## When to use it
- spot code tied to a specific OS or hardware before the move
- map service dependencies and group them into migration waves
- pick a 7 Rs strategy per component backed by code evidence
- rate readiness across six pillars and list the gaps
- find hardcoded IPs, hostnames and local filesystem paths early

## Example prompts
- assess the migration readiness of the billing-api workload for AWS
- analyze the services/orders directory and tell me what blocks the move
- map the dependencies in this repo and suggest migration waves

## Source text · SKILL.md · MIT-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: 1b166d3366499f0a.

BEGIN THIRD-PARTY FILE 1b166d3366499f0a
```text
---
name: migration-readiness
description: Assess a workload's readiness to migrate to AWS by analyzing existing code, dependencies, configurations, and infrastructure to produce evidence-backed findings covering the 7 Rs, risks, and a migration plan.
not_for: architecture decision records, single-pillar assessments, cost optimization of existing AWS workloads, full cross-pillar WA review
version: 2.0.0
---

# Migration Readiness Assessment

## Step 1: Gather context

Ask the user:

> What workload are you planning to migrate? Please share:
> - **Workload name** and code packages/directories to analyze
> - **Current environment** (on-premises, other cloud, colocation)
> - **Business drivers** (cost, agility, compliance, end-of-life hardware, etc.)
> - **Timeline constraints** (optional)

If context is already provided or you are in a codebase, proceed directly.

## Step 2: Application Stack Discovery

Analyze the codebase to understand the current application stack.

You MUST examine:
- Programming languages and runtimes (versions, compatibility with AWS services)
- Frameworks and libraries (web frameworks, ORM, messaging)
- Database technologies (relational, NoSQL, search, caching)
- Middleware and message brokers
- External service dependencies (APIs, SaaS integrations)
- Configuration management (config files, environment variables, secrets)
- Operating system dependencies and system-level requirements
- Build and packaging systems (Maven, npm, pip, Docker)

For each component, document:
- File path and line numbers
- Technology and version
- AWS equivalent or migration path
- Migration complexity (simple lift, requires changes, requires rewrite)
- Dependencies on other components

You MUST flag as BLOCKER:
- OS-specific dependencies without cloud equivalents
- Proprietary software with licensing restrictions (Oracle, specific Windows features)
- Hardware-specific dependencies (FPGA, specific CPU instructions, USB dongles)
- Hardcoded IP addresses or hostnames in application code
- Local filesystem dependencies (shared network drives, local storage)
```
END THIRD-PARTY FILE 1b166d3366499f0a

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First 2089 of 13087 bytes. © aws-samples · MIT-0 · https://github.com/aws-samples/sample-well-architected-skills-and-steering/tree/HEAD/skills/migration-readiness/SKILL.md

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