aws-lambda-functions
Create and deploy serverless functions using AWS Lambda with event sources, permissions, layers, and environment configuration. Use for event-driven computing without managing servers.
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Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/aj-geddes/useful-ai-prompts --skill aws-lambda-functions- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads aws-lambda-functions automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
AWS Lambda Functions
Table of Contents
Overview
AWS Lambda enables you to run code without provisioning or managing servers. Build serverless applications using event-driven triggers, pay only for compute time consumed, and scale automatically with workload.
When to Use
- API endpoints and webhooks
- Scheduled batch jobs and data processing
- Real-time file processing (S3 uploads)
- Event-driven workflows (SNS, SQS)
- Microservices and backend APIs
- Data transformations and ETL jobs
- IoT and sensor data processing
- WebSocket connections
Quick Start
Minimal working example:
# Create Lambda execution role
aws iam create-role \
--role-name lambda-execution-role \
--assume-role-policy-document '{
"Version": "2012-10-17",
"Statement": [{
"Effect": "Allow",
"Principal": {"Service": "lambda.amazonaws.com"},
"Action": "sts:AssumeRole"
}]
}'
# Attach basic execution policy
aws iam attach-role-policy \
--role-name lambda-execution-role \
--policy-arn arn:aws:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole
# Create function from ZIP
zip function.zip index.js
aws lambda create-function \
--function-name my-function \
--runtime nodejs18.x \
--role arn:aws:iam::ACCOUNT:role/lambda-execution-role \
--handler index.handler \
--zip-file fileb://function.zip \
// ... (see reference guides for full implementation)
Reference Guides
Detailed implementations in the references/ directory:
| Guide | Contents |
|---|---|
| Basic Lambda Function with AWS CLI | Basic Lambda Function with AWS CLI |
| Lambda Function with Node.js | Lambda Function with Node.js |
| Terraform Lambda Deployment | Terraform Lambda Deployment |
| Lambda with SAM (Serverless Application Model) | Lambda with SAM (Serverless Application Model) |
| Lambda Layers for Code Sharing | Lambda Layers for Code Sharing |
Best Practices
✅ DO
- Use environment variables for configuration
- Implement proper error handling and logging
- Optimize package size and dependencies
- Set appropriate timeout and memory
- Use Lambda Layers for shared code
- Implement concurrency limits
- Enable X-Ray tracing for debugging
- Use reserved concurrency for critical functions
❌ DON'T
- Store sensitive data in code
- Create long-running operations (>15 min)
- Ignore cold start optimization
- Forget to handle concurrent executions
- Ignore CloudWatch metrics
- Use too much memory unnecessarily
FAQ
What does the aws-lambda-functions skill do?
Create and deploy serverless functions using AWS Lambda with event sources, permissions, layers, and environment configuration. Use for event-driven computing without managing servers.
How do I install aws-lambda-functions?
Run npx skills add https://github.com/aj-geddes/useful-ai-prompts --skill aws-lambda-functions in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/aws-lambda-functions/ (personal) or .claude/skills/aws-lambda-functions/ (project).
Which AI agents can use aws-lambda-functions?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is aws-lambda-functions safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains aws-lambda-functions?
It is published by aj-geddes in aj-geddes/useful-ai-prompts. It has 614 recorded installs.
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