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Agent skill

Openapi Spec Generator

by jeremylongshore in jeremylongshore/tons-of-skills-marketplace

Generate openapi spec generator operations. An agent skill from jeremylongshore/tons-of-skills-marketplace.

MITAuto-check passedBackend & APIs

Install Openapi Spec Generator

skills CLI
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill openapi-spec-generator -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install jeremylongshore/tons-of-skills-marketplace openapi-spec-generator --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/15-api-development/openapi-spec-generator .claude/skills/openapi-spec-generator && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
openapi-spec-generator
GitHub stars
2.8k
Token cost
~566 tokens
SKILL.md length
195 words
Files
1
Skills in repo
3,342
Repo updated
First seen
Licence
MIT

At a glance

Generate openapi spec generator operations. An agent skill from jeremylongshore/tons-of-skills-marketplace.

  • Works in 4 steps: Provides step-by-step guidance for… → Follows industry best practices and… → Generates production-ready code and… → …
  • : openapi spec generator
  • SKILL.md covers Overview, When to Use, Instructions and Examples, plus 5 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Openapi Spec Generator is an agent skill from jeremylongshore/tons-of-skills-marketplace. Generate openapi spec generator operations. Auto-activating skill for API Development. Triggers on: openapi spec generator, openapi spec generator Part of the API Development skill category. Use when working with APIs or building integrations. Trigger with phrases like "openapi spec generator", "openapi generator", "openapi".

Its SKILL.md is about 570 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts. Compatibility notes: Designed for Claude Code

It sits in Backend & APIs, covering OpenAPI specifications. It works with OpenAPI. The repository describes itself as: Model-agnostic agent-skills platform with a harness-free canonical layer, verified adapters, and the ccpi package manager. Explore at tonsofskills.com. The licence is MIT.

When your agent uses it

  • : openapi spec generator
  • Openapi spec generator Part of the API Development skill category
  • Working with APIs
  • Building integrations

Example prompts

  • “openapi spec generator”
  • “openapi generator”
  • “openapi”
  • “/openapi-spec-generator”

Requirements

  • Compatibility (from SKILL.md): Designed for Claude Code
  • Pre-approved tools (allowed-tools): Read, Write, Edit, Bash(curl:*), Grep

Workflow steps

4 steps, taken from the first numbered list in SKILL.md.

  1. Provides step-by-step guidance for openapi spec generator
  2. Follows industry best practices and patterns
  3. Generates production-ready code and configurations
  4. Validates outputs against common standards

What it can do on your machine

Read from SKILL.md and the folder at commit 80f86df. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves these tools, so the agent can use them without asking each time:

    • Read
    • Write
    • Edit
    • Bash(curl:*)
    • Grep

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

  • Compatibility

    Designed for Claude Code

    From compatibility in the SKILL.md frontmatter.

Context cost

Openapi Spec Generator loads about 566 tokens when it runs. Until then it costs about 88 tokens; SKILL.md has 195 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~88
When it runs · the whole SKILL.md, loaded when a task matches
~566

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from jeremylongshore/tons-of-skills-marketplace at commit 80f86df, republished under its MIT licence (© jeremylongshore). 195 words, ~566 tokens.

Download SKILL.mdSave it as .claude/skills/openapi-spec-generator/SKILL.md (or your agent's skills folder).
name
openapi-spec-generator
description
Generate openapi spec generator operations. Auto-activating skill for API Development. Triggers on: openapi spec generator, openapi spec generator Part of the API Development skill category. Use when working with APIs or building integrations. Trigger with phrases like "openapi spec generator", "openapi generator", "openapi".
allowed-tools
Read, Write, Edit, Bash(curl:*), Grep
compatibility
Designed for Claude Code
version
1.0.0
license
MIT
author
Jeremy Longshore <jeremy@intentsolutions.io>
tags
api, development

Openapi Spec Generator

Overview

This skill provides automated assistance for openapi spec generator tasks within the API Development domain.

When to Use

This skill activates automatically when you:

  • Mention "openapi spec generator" in your request
  • Ask about openapi spec generator patterns or best practices
  • Need help with api development skills covering rest, graphql, openapi, authentication, and api design patterns.

Instructions

  1. Provides step-by-step guidance for openapi spec generator
  2. Follows industry best practices and patterns
  3. Generates production-ready code and configurations
  4. Validates outputs against common standards

Examples

Example: Basic Usage Request: "Help me with openapi spec generator" Result: Provides step-by-step guidance and generates appropriate configurations

Prerequisites

  • Relevant development environment configured
  • Access to necessary tools and services
  • Basic understanding of api development concepts

Output

  • Generated configurations and code
  • Best practice recommendations
  • Validation results

Error Handling

ErrorCauseSolution
Configuration invalidMissing required fieldsCheck documentation for required parameters
Tool not foundDependency not installedInstall required tools per prerequisites
Permission deniedInsufficient accessVerify credentials and permissions

Resources

  • Official documentation for related tools
  • Best practices guides
  • Community examples and tutorials

Part of the API Development skill category. Tags: api, rest, graphql, openapi, swagger

© jeremylongshore, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in skills/15-api-development/openapi-spec-generator of jeremylongshore/tons-of-skills-marketplace.

Open the folder on GitHubat commit 80f86df

Compare with similar skills

Openapi Spec Generator next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Openapi Spec Generator compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Openapi Spec Generator this skilljeremylongshore/tons-of-skills-marketplace2.8k—~566Automated safety check: PassMIT
ToolJet Marketplace Plugin BuilderToolJet/ToolJet41k—~2.1kAutomated safety check: PassAGPL-3.0
Step Partsearthtojake/text-to-cad19k1 repos~1.5kAutomated safety check: PassMIT
OpenAPI to MCP Servermcp-use/mcp-use11k—~5.2kAutomated safety check: PassApache-2.0
Use Yaakmountain-loop/yaak19k—~1.9kAutomated safety check: PassMIT
API DesignerJeffallan/claude-skills12k1 repos~2kAutomated safety check: PassMIT

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Works with

Categories

Questions about Openapi Spec Generator

What does Openapi Spec Generator do?

Generate openapi spec generator operations. An agent skill from jeremylongshore/tons-of-skills-marketplace. Openapi Spec Generator is an agent skill from jeremylongshore/tons-of-skills-marketplace. Generate openapi spec generator operations.

When should I use Openapi Spec Generator?

Openapi Spec Generator fits situations like: : openapi spec generator; openapi spec generator Part of the API Development skill category; working with APIs; building integrations.

How do I install Openapi Spec Generator in Claude Code?

Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill openapi-spec-generator -a claude-code`. Or copy the skill folder (skills/15-api-development/openapi-spec-generator in jeremylongshore/tons-of-skills-marketplace) into .claude/skills/openapi-spec-generator in your project. Claude Code loads it when a task matches its description.

How do I install Openapi Spec Generator in Codex?

Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill openapi-spec-generator -a codex`. Or copy the skill folder (skills/15-api-development/openapi-spec-generator in jeremylongshore/tons-of-skills-marketplace) into .agents/skills/openapi-spec-generator in your project. Codex loads it when a task matches its description.

Can I use Openapi Spec Generator in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill openapi-spec-generator -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/openapi-spec-generator, .gemini/skills/openapi-spec-generator, .github/skills/openapi-spec-generator and .opencode/skills/openapi-spec-generator in your project.

What does Openapi Spec Generator need to run?

SKILL.md names no scripts, command-line tools or credentials: Openapi Spec Generator is instructions for the agent only. Its frontmatter pre-approves these tools: Read, Write, Edit, Bash(curl:*), Grep. Compatibility (from SKILL.md): Designed for Claude Code.

Does Openapi Spec Generator access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Openapi Spec Generator safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Openapi Spec Generator use?

Openapi Spec Generator is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Openapi Spec Generator use?

About 566 tokens (SKILL.md is roughly 2.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Openapi Spec Generator?

Skills that share tags, products or a category with Openapi Spec Generator: ToolJet Marketplace Plugin Builder (ToolJet/ToolJet, 41k stars), Step Parts (earthtojake/text-to-cad, 19k stars), OpenAPI to MCP Server (mcp-use/mcp-use, 11k stars) and Use Yaak (mountain-loop/yaak, 19k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Openapi Spec Generator?

jeremylongshore (a GitHub user) maintains it in jeremylongshore/tons-of-skills-marketplace, which has 2,825 GitHub stars. The repository holds 3,342 skills in this directory. The repository was last updated on October 9, 2026.

Source: jeremylongshore/tons-of-skills-marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.