aws-cdk-development_skill

Overview

This skill is an AWS CDK development expert for building and validating cloud infrastructure with TypeScript and Python. It guides CDK app structure, construct patterns, stack composition, and deployment workflows while integrating MCP servers for up-to-date AWS and CDK guidance. Use this skill to design, validate, synthesize, and deploy reliable CDK stacks.

How this skill works

The skill inspects CDK apps, construct choices, and stack configurations and recommends patterns, APIs, and deployment steps. It leverages an AWS Documentation MCP to verify service features and regional availability and a CDK MCP server for construct-level recommendations and best practices. When MCP tools are unavailable, it helps configure MCP options or prompts for the preferred verification path.

When to use it

• Creating new CDK stacks or constructing reusable constructs
• Refactoring or modularizing existing CDK infrastructure
• Implementing Lambda functions and packaging strategies in CDK
• Verifying service availability, quotas, or API changes before coding
• Running pre-deployment validation, synthesis, and CI checks

Best practices

• Avoid explicitly specifying optional resource names; let CDK generate unique names for reusability and parallel deployments
• Use language-specific constructs (NodejsFunction, PythonFunction) to automate bundling and dependency management
• Apply multi-layer validation: IDE/synthesis checks (cdk-nag), synthesis-time validation, and pre-commit tests
• Check AWS Documentation MCP for regional availability and API changes before implementation
• Organize stacks with clear construct boundaries and nested stacks for complex apps; export values only when needed

Example use cases

• Recommend the appropriate CDK construct for an API Gateway + Lambda integration
• Validate that a new AWS feature is available in the target region before coding
• Create a pre-deploy pipeline that runs cdk synth, cdk-nag checks, builds, and tests
• Refactor a monolithic stack into logical constructs with nested stacks and exported values
• Help configure Lambda bundling and dependency handling for TypeScript or Python functions