AWS CloudFormation Lambda
CloudFormation patterns and limits for production Lambda: layers, DLQ, API Gateway.
Test report
- Verdict
- Tested · Works
- Score
- 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-lambdaCloudFormation 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.