AWS Agent Skills is a collection of local instructions that help coding agents reason about AWS cloud services and engineering tasks. It supports agents working with areas such as identity, compute, storage, serverless, databases, networking, and security. The catalogue contains 18 service-focused skills and one plugin for using these capabilities with coding agents.
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.
npx skills add itsmostafa/aws-agent-skills --skill api-gatewaygit clone --depth 1 https://github.com/itsmostafa/aws-agent-skillsWrote 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.
[](https://agentmods.dev/skills/itsmostafa/aws-agent-skills/api-gateway)<a href="https://agentmods.dev/skills/itsmostafa/aws-agent-skills/api-gateway"><img src="https://agentmods.dev/badge/skills/itsmostafa/aws-agent-skills/api-gateway.svg" alt="Measured on agentmods" height="20"></a>- NVIDIA SkillSpector pass
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00038 | $0.02288 |
| Opus 5 | $0.00019 | $0.01144 |
| Sonnet 5 | $0.00008 | $0.00458 |
| Haiku 4.5 | $0.00004 | $0.00229 |
Grade A, and why
api-gateway scanned grade A with 0 findings 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 7d 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.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 344 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AWS API Gateway
Amazon API Gateway is a fully managed service for creating, publishing, and securing APIs at any scale. Supports REST APIs, HTTP APIs, and WebSocket APIs.
Table of Contents
Core Concepts
API Types
| Type | Description | Use Case |
|---|---|---|
| HTTP API | Low-latency, cost-effective | Simple APIs, Lambda proxy |
| REST API | Full-featured, more control | Complex APIs, transformation |
| WebSocket API | Bidirectional communication | Real-time apps, chat |
Key Components
- Resources: URL paths (/users, /orders/{id})
- Methods: HTTP verbs (GET, POST, PUT, DELETE)
- Integrations: Backend connections (Lambda, HTTP, AWS services)
- Stages: Deployment environments (dev, prod)
Integration Types
| Type | Description |
|---|---|
| Lambda Proxy | Pass-through to Lambda (recommended) |
| Lambda Custom | Transform request/response |
| HTTP Proxy | Pass-through to HTTP endpoint |
| AWS Service | Direct integration with AWS services |
| Mock | Return static response |
Common Patterns
Create HTTP API with Lambda
AWS CLI:
# Create HTTP API
aws apigatewayv2 create-api \
--name my-api \
--protocol-type HTTP \
--target arn:aws:lambda:us-east-1:123456789012:function:MyFunction
# Get API endpoint
aws apigatewayv2 get-api --api-id abc123 --query 'ApiEndpoint'
SAM Template:
AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Resources:
MyApi:
Type: AWS::Serverless::HttpApi
Properties:
StageName: prod
MyFunction:
Type: AWS::Serverless::Function
Properties:
Handler: app.handler
Runtime: python3.12
Events:
ApiEvent:
Type: HttpApi
Properties:
ApiId: !Ref MyApi
Path: /items
Method: GET
What ships with it
1 file 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.
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.
- 7d ago First seen · 344 lines · 38 tokens per session scan A 943d1aa977a7
api-gateway is a skill published in the GitHub repository itsmostafa/aws-agent-skills (1,150 stars, last pushed 6d ago), licensed MIT. It adds 38 tokens to every session and 2,288 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
agent-ready-auth-md
Sub-skill: Implement Auth.md for agent registration discovery. Serve /auth.md with OAuth metadata at /.well-known/oauth-protected-resource and authorization server endpoints.
agent-ready-dns-aid
Sub-skill: Implement DNS-AID records so agents discover endpoints through DNS. Use SVCB/HTTPS records under agents namespace with alpn and connection parameters.
agent-ready-link-headers
Sub-skill de agent-ready-cloudflare: Implement Link Response Headers.
agent-ready-markdown-negotiation
Sub-skill de agent-ready-cloudflare: Implement Markdown Content Negotiation.
agent-ready-mcp-server-card
Sub-skill de agent-ready-cloudflare: Implement MCP Server Card.
agent-ready-oauth-discovery
Sub-skill de agent-ready-cloudflare: Implement OAuth/OIDC Discovery.