openapi-to-apigw-transform

openapi-to-apigw-transform is a skill for Claude Code, Codex from aws-samples/serverless-samples. It costs 109 tokens per session (5,255 once invoked), scanned A, original, MIT-0.

A conversion workflow for turning OpenAPI specifications into REST APIs that run on Amazon API Gateway. OpenAPI is a standard format for describing an API's endpoints, inputs, and outputs.

In plain words
What is it for?
Use it to transform OpenAPI 2.0, 3.0, or 3.1 files, validate the result, optionally deploy with AWS SAM, test live endpoints, and report unsupported features.
Why use it?
It helps identify and handle differences between a general API description and what Amazon API Gateway supports. Validation and testing can expose unsupported features or problems before an API is used.

Skill for Claude CodeCodex

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/aws-samples/serverless-samples/openapi-to-apigw-transform
Any agent
npx skills add aws-samples/serverless-samples --skill openapi-to-apigw-transform
Clone the repo
git clone --depth 1 https://github.com/aws-samples/serverless-samples

Made for: Claude Code, Codex.

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 openapi-to-apigw-transform

README.md
[![agentmods](https://agentmods.dev/badge/skills/aws-samples/serverless-samples/openapi-to-apigw-transform.svg)](https://agentmods.dev/skills/aws-samples/serverless-samples/openapi-to-apigw-transform)
Your own site
<a href="https://agentmods.dev/skills/aws-samples/serverless-samples/openapi-to-apigw-transform"><img src="https://agentmods.dev/badge/skills/aws-samples/serverless-samples/openapi-to-apigw-transform.svg" alt="Measured on agentmods" height="20"></a>
Per session 109 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,255 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
Origin unknown 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 $0.00109 $0.05255
Opus 5 $0.00055 $0.02627
Sonnet 5 $0.00022 $0.01051
Haiku 4.5 $0.00011 $0.00526

Measured 4d ago against content hash e0151918d5b8, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

openapi-to-apigw-transform scanned grade A 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 4d ago.

The scan reads SKILL.md. This mod also ships 44 executable files (scripts/generate-unsupported-report.sh, scripts/sam-deploy.sh, scripts/validate-deployment.sh, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

6. Run E2E smoke tests against the live endpoints using curl.
apigw-openapi-transform/skills/openapi-to-apigw-transform/SKILL.md · 528 lines

The source is not reproduced here

Licensed MIT-0

The repository is licensed MIT-0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Files

What ships with it

60 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. 4d ago First seen · 528 lines · 109 tokens per session scan A e0151918d5b8

Subscribe to this mod's changes

openapi-to-apigw-transform is a skill published in the GitHub repository aws-samples/serverless-samples (348 stars, last pushed 9d ago), licensed MIT-0. It adds 109 tokens to every session and 5,255 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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