aws-serverless

aws-serverless is a skill for Claude Code, Codex from gunnargrosch/aws-serverless-plugin. It costs 29 tokens per session (1,935 once invoked), scanned C, original, MIT.

A development guide for building and deploying serverless applications on AWS, where cloud code runs in response to requests or events instead of on a continuously managed server.

In plain words
What is it for?
Use it to work with Lambda, API Gateway, event-driven applications, SAM projects, deployments, monitoring, and related AWS services.
Why use it?
It brings related AWS services and workflows together for projects that use this hosting model.

Skill for Claude CodeCodex

Part of the aws-serverless plugin — 1 skill, 1 hook, 1 MCP server shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/gunnargrosch/aws-serverless-plugin/aws-serverless
Any agent
npx skills add gunnargrosch/aws-serverless-plugin --skill aws-serverless
Clone the repo
git clone --depth 1 https://github.com/gunnargrosch/aws-serverless-plugin

Made for: Claude Code, Codex.

Or install aws-serverless, the plugin that ships this one along with the rest of its 1 skill, 1 hook, 1 MCP server.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for aws-serverless

README.md
[![agentmods](https://agentmods.dev/badge/skills/gunnargrosch/aws-serverless-plugin/aws-serverless.svg)](https://agentmods.dev/skills/gunnargrosch/aws-serverless-plugin/aws-serverless)
Your own site
<a href="https://agentmods.dev/skills/gunnargrosch/aws-serverless-plugin/aws-serverless"><img src="https://agentmods.dev/badge/skills/gunnargrosch/aws-serverless-plugin/aws-serverless.svg" alt="Measured on agentmods" height="20"></a>
Per session 29 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,935 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 1 finding. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00029 $0.01935
Opus 5 $0.00015 $0.00967
Sonnet 5 $0.00006 $0.00387
Haiku 4.5 $0.00003 $0.00194

Measured 3d ago against content hash d756c95bce3a, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade C, and why

aws-serverless scanned grade C with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Reaches for credential fileshighPrivilege escalation

SSH keys, cloud credentials, git-credentials, .npmrc, /etc/shadow: reading these is how a config file becomes a credential leak.

2. **Configure credentials**: Run `aws configure` or set up named profiles in `~/.aws/credentials`
skills/aws-serverless/SKILL.md · 145 lines

How it starts

The opening of the file, as written. The whole thing — 145 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AWS Serverless Plugin

Overview

Build and deploy serverless applications with AWS Lambda, SAM, API Gateway, and the complete AWS serverless ecosystem. This skill provides access to comprehensive serverless development tools through the AWS Serverless MCP Server, enabling you to build production-ready serverless applications with best practices built-in.

Use SAM CLI for project initialization and deployment, Lambda Web Adapter for web applications, or Event Source Mappings for event-driven architectures. The platform handles infrastructure provisioning, scaling, and monitoring automatically.

Key capabilities:

  • SAM CLI Integration: Initialize, build, deploy, and test serverless applications
  • Web Application Deployment: Deploy full-stack applications with Lambda Web Adapter
  • Event Source Mappings: Configure Lambda triggers for DynamoDB, Kinesis, SQS, Kafka
  • Schema Management: Type-safe EventBridge integration with schema registry
  • Observability: CloudWatch logs, metrics, and X-Ray tracing
  • Performance Optimization: Right-sizing, cost optimization, and troubleshooting

Workflow Guidance

Refer to these supporting files for detailed guidance on specific workflows:

File When to Use
getting-started.md Decision tree: what are you building? Routes to the right template, runtime, and guide
sam-project-setup.md SAM project initialization, template selection, development workflow, and testing
cdk-project-setup.md CDK as an alternative to SAM: constructs, patterns, testing, and deployment
web-app-deployment.md Full-stack deployment patterns with Lambda Web Adapter, authentication, and response streaming
event-sources.md Lambda event sources: S3, SNS, DynamoDB, Kinesis, SQS, Kafka, MQ, and DocumentDB
event-driven-architecture.md EventBridge rules, event design, choreography vs orchestration, Pipes, schema registry
orchestration-and-workflows.md Multi-step workflows with Lambda Durable Functions or Step Functions
optimization.md Performance tuning, cost optimization, Lambda SnapStart, Managed Instances, and Powertools
observability.md Structured logging, distributed tracing, custom metrics, alarms, dashboards, and Logs Insights
troubleshooting.md Symptom-based diagnosis and resolution for common issues

Read the full file on GitHub · 145 lines

Files

What ships with it

10 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 3d ago First seen · 145 lines · 29 tokens per session scan C d756c95bce3a

Subscribe to this mod's changes

aws-serverless is a skill published in the GitHub repository gunnargrosch/aws-serverless-plugin (8 stars, last pushed 6mo ago), licensed MIT. It adds 29 tokens to every session and 1,935 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it C with 1 finding (reaches for credential files). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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