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openapi-owasp-gherkin

openapi-owasp-gherkin is a skill for Claude Code from mfakbar127/agent-skills. It costs 62 tokens per session (4,204 once invoked), scanned B, original, no licence file.

A test-case generator that creates Gherkin feature files for the 10 areas in the OWASP API Security Top 10 2023. Gherkin is a readable format for describing software behaviour as scenarios.

In plain words
What is it for?
It creates security test files for an OpenAPI-described API, with separate scenarios for each OWASP category.
Why use it?
It removes the need to write security scenarios from scratch and helps cover a standard set of API risks.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the openapi-security-test plugin — 10 skills shipped together

not rated 2repo 20d ago B scan 62 tokens no licence

Good fit It creates security test files for an OpenAPI-described API, with separate scenarios for each OWASP category.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/mfakbar127/agent-skills/openapi-owasp-gherkin
View source ↗ mfakbar127/agent-skills
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 mfakbar127/agent-skills --skill openapi-owasp-gherkin
Clone the repo
git clone --depth 1 https://github.com/mfakbar127/agent-skills

Made for: Claude Code.

Or install openapi-security-test, the plugin that ships this one along with the rest of its 10 skills.

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-owasp-gherkin

README.md
[![agentmods](https://agentmods.dev/badge/skills/mfakbar127/agent-skills/openapi-owasp-gherkin/github.svg)](https://agentmods.dev/skills/mfakbar127/agent-skills/openapi-owasp-gherkin)
Your own site
<a href="https://agentmods.dev/skills/mfakbar127/agent-skills/openapi-owasp-gherkin"><img src="https://agentmods.dev/badge/skills/mfakbar127/agent-skills/openapi-owasp-gherkin/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for openapi-owasp-gherkin

Your own site · 80×15
<a href="https://agentmods.dev/skills/mfakbar127/agent-skills/openapi-owasp-gherkin"><img src="https://agentmods.dev/badge/skills/mfakbar127/agent-skills/openapi-owasp-gherkin.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 62 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,204 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00062 $0.04204
Opus 5.5 $0.00025 $0.01682
Sonnet 5.5 $0.00012 $0.00841
Haiku 4.5 $0.00006 $0.00420

Measured 27d ago against content hash 132742f9aef7, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

openapi-owasp-gherkin scanned grade B 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 27d 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.

Cloud metadata endpointmediumServer-side request forgery

One request to 169.254.169.254 can return temporary IAM credentials.

- Fetch AWS metadata: http://169.254.169.254/latest/meta-data/

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

plugins/openapi-security-test/skills/openapi-owasp-gherkin/SKILL.md · 406 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

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.

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. 27d ago First seen · 406 lines · 62 tokens per session scan B 132742f9aef7

Subscribe to this mod's changes

openapi-owasp-gherkin is a skill published in the GitHub repository mfakbar127/agent-skills (2 stars, last pushed 20d ago), with no licence file. It adds 62 tokens to every session and 4,204 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it B with 1 finding (cloud metadata endpoint). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-10-11.

E2E testingSecurityTesting
Related

openapi-owasp-gherkin compared with skills from other repositories

openapi-owasp-gherkin next to 6 skills from other repositories
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