AWS CloudFormation Lambda

CloudFormation patterns and limits for production Lambda: layers, DLQ, API Gateway.

Tested · Works

Test report

Verdict
Tested · Works
Score
8.8/10
Tested
Jul 13, 2026
Environment
Claude Code 2.x (agent harness)
Upstream re-checked
Aug 10, 2026 · 0ffd262

Asked for a Lambda-with-DLQ-and-tracing template both cold and skill-guided: the skill version added constraints a generic answer skipped, like the DLQ needing to sit in the same region as the function and the 4KB total cap on environment variables.

Scored on four weighted criteria — install, triggering, output vs. baseline, docs. How scoring works

  • Installs cleanly 5/5
  • Triggers reliably 5/5
  • Output vs. baseline 7/10
  • Docs & honesty 5/5

What AWS CloudFormation Lambda does

Reference patterns and hard AWS limits for building Lambda functions in raw CloudFormation: execution roles, event sources (S3/SQS/DynamoDB/Kinesis), API Gateway integration, versioning/aliases, DLQ, and cold-start/cost/security best practices, plus a validate-deploy-monitor-verify-rollback workflow. Triggers when creating, wiring, or deploying Lambda infrastructure specifically via CloudFormation (not Terraform or Serverless Framework).

How to install AWS CloudFormation Lambda

git clone https://github.com/giuseppe-trisciuoglio/developer-kit
cd developer-kit
mkdir -p ~/.claude/skills
cp -r plugins/developer-kit-aws/skills/aws-cloudformation/aws-cloudformation-lambda ~/.claude/skills/aws-cloudformation-lambda

Skills live in ~/.claude/skills/ (global) or .claude/skills/ (per-project). Restart Claude Code after installing.

Commands — how to trigger AWS CloudFormation Lambda

  • /aws-cloudformation-lambda CloudFormation patterns and limits for production Lambda: layers, DLQ, API Gateway.

It also activates on plain-language prompts like these:

  • Write a CloudFormation template for a Lambda with an SQS event source and DLQ
  • Add API Gateway integration and versioning to this Lambda CloudFormation stack
  • Set up execution roles and cold-start best practices for this Lambda in CFN

Frequently asked questions

Is the AWS CloudFormation Lambda skill free?
Yes. The skill itself is free from giuseppe-trisciuoglio/developer-kit. SkillProof publishes the install command and an independent test verdict at no cost.
Does AWS CloudFormation Lambda work with Claude Code?
We tested it with Claude Code 2.x (agent harness) on Jul 13, 2026. Verdict: Tested · Works. Asked for a Lambda-with-DLQ-and-tracing template both cold and skill-guided: the skill version added constraints a generic answer skipped, like the DLQ needing to sit in the same region as the function and the 4KB total cap on environment variables.
What is the AWS CloudFormation Lambda SkillProof Score?
8.8/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 7/10, docs & honesty 5/5.
How do I install AWS CloudFormation Lambda?
Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.
Can I use AWS CloudFormation Lambda with Cursor, Copilot, Gemini CLI, Codex or other AI tools?
The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.