openapi-swagger-codegen-expert

openapi-swagger-codegen-expert is a skill for Claude Code, Codex from roedyrustam/vibes-plug. It costs 73 tokens per session (985 once invoked), scanned A, original, MIT.

A guide to describing web APIs with OpenAPI, a standard format for documenting how software services communicate, and generating client or server code from that description.

In plain words
What is it for?
Use it to write OpenAPI specifications, publish API documentation, generate typed clients or server stubs, and run contract tests that check implementations against the specification.
Why use it?
It keeps frontend, mobile, and backend code aligned with the same API contract instead of relying on manually maintained request wrappers and documentation.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to write OpenAPI specifications, publish API documentation, generate typed clients or server stubs, and run contract tests that check implementations against the specification.

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Install with agentmods
npx agentmods add skills/roedyrustam/vibes-plug/openapi-swagger-codegen-expert
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.

Any agent
npx skills add roedyrustam/vibes-plug --skill openapi-swagger-codegen-expert
Clone the repo
git clone --depth 1 https://github.com/roedyrustam/vibes-plug

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-swagger-codegen-expert

README.md
[![agentmods](https://agentmods.dev/badge/skills/roedyrustam/vibes-plug/openapi-swagger-codegen-expert.svg)](https://agentmods.dev/skills/roedyrustam/vibes-plug/openapi-swagger-codegen-expert)
Your own site
<a href="https://agentmods.dev/skills/roedyrustam/vibes-plug/openapi-swagger-codegen-expert"><img src="https://agentmods.dev/badge/skills/roedyrustam/vibes-plug/openapi-swagger-codegen-expert.svg" alt="Measured on agentmods" height="20"></a>
Per session 73 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 985 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 5.1 $0.00073 $0.00985
Opus 5 $0.00036 $0.00492
Sonnet 5 $0.00015 $0.00197
Haiku 4.5 $0.00007 $0.00098

Measured 5d ago against content hash 607d7770ba08, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

openapi-swagger-codegen-expert 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 5d 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.

skills/openapi-swagger-codegen-expert/SKILL.md · 68 lines

How it starts

The opening of the file, as written. The whole thing — 68 lines — stays where its author put it; the contents beside it link to each section on GitHub.

OpenAPI & Swagger Codegen Expert

English | Bahasa Indonesia


English

Description

Dedicated expert guide for API contract-first development using OpenAPI 3.1, Swagger UI, and automated code generation. Covers generating strictly typed API clients (using openapi-typescript, Orval, or Microsoft Kiota), scaffolding server stubs, and implementing contract testing to ensure backend APIs always match their documentation.

Trigger Conditions

  • Setting up API documentation (Swagger UI, Redoc, Scalar).
  • Generating API client code for frontend/mobile apps.
  • Authoring OpenAPI 3.x specifications (openapi.yaml or JSON).
  • Implementing contract testing (e.g., using Dredd or Prism).
  • Migrating from manual fetch wrappers to auto-generated typed API clients.

Best Practices & Workflow

  1. Contract-First Approach: Always write or define the OpenAPI specification before writing any backend code. This serves as the single source of truth for both frontend and backend teams.
  2. Strict Type Generation:
    • Use openapi-typescript for generating raw TS definitions.
    • Use Orval for generating React Query (TanStack Query) hooks directly from the OpenAPI spec.
    • Use Microsoft Kiota for multi-language SDK generation.
  3. Automated Validation: Integrate API schema validation in the CI/CD pipeline using tools like Spectral to enforce API design standards.
  4. Mocking: Use tools like Prism to spin up mock servers from the OpenAPI spec, allowing frontend teams to start development immediately.

Bahasa Indonesia

Integrasi Orkestrasi

Terhubung dan mengorkestrasi skill domain yang relevan seperti brainstorming, zero-to-prod-orchestrator, dan project-context-mapper untuk memastikan eksekusi yang kohesif.

Deskripsi

Panduan ahli khusus untuk pengembangan API dengan pendekatan contract-first menggunakan OpenAPI 3.1, Swagger UI, dan otomatisasi pembuatan kode (codegen). Mencakup pembuatan klien API yang strictly typed (menggunakan openapi-typescript, Orval, atau Microsoft Kiota), scaffolding untuk server, dan implementasi contract testing untuk memastikan backend selalu sesuai dengan dokumentasinya.

Read the full file on GitHub · 68 lines

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. 5d ago First seen · 68 lines · 73 tokens per session scan A 607d7770ba08

Subscribe to this mod's changes

openapi-swagger-codegen-expert is a skill published in the GitHub repository roedyrustam/vibes-plug (49 stars, last pushed today), licensed MIT. It adds 73 tokens to every session and 985 once invoked, about $0.0004 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 2026-09-03.

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