processing-s3-uploads-with-step-functions

An agent skill by aws, from aws/agent-toolkit-for-aws. Tags: automation, aws, s3, serverless, step-functions.

What it does

Deploy an event-driven workflow that routes S3 uploads to either Lambda or Fargate via Step Functions based on file size. Uses EventBridge to trigger a Step Functions state machine when objects are uploaded to S3. Small files are processed by Lambda, large files by a Fargate task. Includes VPC, ECR repository, ECS cluster, and scoped IAM roles. Trigger keywords: Step Functions, Fargate, Lambda, S3 event, EventBridge, ECS, ECR, file processing, workflow orchestration, serverless.

Install

With the skills CLI, which installs into Claude Code, Codex, Cursor and other agents:

npx skills add aws/agent-toolkit-for-aws --skill processing-s3-uploads-with-step-functions

Or copy the skill folder into Claude Code's skills directory by hand (~/.claude/skills for every project, or .claude/skills inside one):

git clone --depth 1 https://github.com/aws/agent-toolkit-for-aws
cp -r agent-toolkit-for-aws/skills/specialized-skills/serverless-skills/processing-s3-uploads-with-step-functions ~/.claude/skills/processing-s3-uploads-with-step-functions

Safety box score

Not rated yet. A safety box score grades what a skill and its scripts can reach on the machine of whoever installs it, across eight categories from shell execution to secrets access. Anyone can request one from this page; it is saved for everyone. How the score works.

Source

Repository

aws/agent-toolkit-for-aws (all skills from this repository)

Path

skills/specialized-skills/serverless-skills/processing-s3-uploads-with-step-functions/SKILL.md

Branch

main

Updated

2026-09-19

Related skills

• aws-step-functions — Authors and edits AWS Step Functions state machines: writes Amazon States Language (ASL) in JSONata, and chooses and structures state types (Task, Choice, Map.
• aws-serverless — Builds, deploys, manages, debugs, configures, and optimizes serverless applications on AWS using Lambda, API Gateway, Step Functions, EventBridge, and SAM/CDK.
• querying-aws-s3 — Queries S3 object metadata, tracks bucket activity, audits object changes, searches annotations.
• recovery-controller-setup — Configures AWS Application Recovery Controller (ARC) for operational resilience: routing controls with safety rules for cross-Region failover.
• securing-s3-buckets — Create and secure S3 buckets following AWS best practices for access control, encryption, monitoring, and remediation of misconfigurations.
• setting-up-cloudwatch-alarm-notifications — Sets up notification channels for CloudWatch alarms using SNS topics and subscriptions.