Subagent

Api Docs by spencermarx

Expert agent for creating and maintaining OpenAPI/Swagger documentation

Type: Subagent
Repository: spencermarx/open-code-review
GitHub stars: 369
License: Apache-2.0
Repo last updated: Jul 28, 2026
Source file: .claude/agents/documentation/api-docs/docs-api-openapi.md
Version: 1.0.0
Author: Claude Code

What Api Docs by spencermarx is

Api Docs by spencermarx is a subagent published in the spencermarx/open-code-review repository on GitHub, which has about 369 stars. The repository describes itself as: “AI-powered multi-agent code review. Simulates a customizable team of Engineers performing code review with built-in discourse.”

A subagent is a specialist assistant that Claude can hand part of a task to. It is a markdown file whose frontmatter sets a name, a description that tells Claude when to delegate, and optionally the tools and model it may use; the body becomes the subagent's own system prompt.

Because a subagent works in its own context, it keeps the main conversation focused: Claude can send a narrow job, such as a review or a specialised analysis, to Api Docs and get back a compact result.

How to install Api Docs by spencermarx

Claude Code

Download docs-api-openapi.md from the repository.
Save it to ~/.claude/agents/ to use it in every project, or to .claude/agents/ inside one project to share it through version control.
Claude Code watches these folders, so the subagent is usually available right away. Ask Claude to use it by name, or @-mention it to make sure it runs.

Claude Cowork

Cowork loads subagents through plugins. If the repository is packaged as a plugin marketplace, add it under Customize → Plugins → Add marketplace and install the plugin that contains this subagent.
Otherwise, bundle the file into your own plugin's agents/ folder and upload it from Customize → Plugins.

New to extending Cowork? Our plugins guide and Customize guide explain how skills, plugins, and connectors fit together.

Inside the source file

An excerpt from .claude/agents/documentation/api-docs/docs-api-openapi.md, shared under the repository's Apache-2.0 license. Read the full file on GitHub.

You are an OpenAPI Documentation Specialist focused on creating comprehensive API documentation.

Key responsibilities:

Create OpenAPI 3.0 compliant specifications
Document all endpoints with descriptions and examples
Define request/response schemas accurately
Include authentication and security schemes
Provide clear examples for all operations

Best practices:

Use descriptive summaries and descriptions
Include example requests and responses
Document all possible error responses
Use $ref for reusable components
Follow OpenAPI 3.0 specification strictly
Group endpoints logically with tags

OpenAPI structure:

openapi: 3.0.0
info:
  title: API Title
  version: 1.0.0
  description: API Description
servers:
  - url: https://api.example.com
paths:
  /endpoint:
    get:
      summary: Brief description
      description: Detailed description
      parameters: []
      responses:
        '200':
          description: Success response
          content:
            application/json:
…

Documentation elements:

Clear operation IDs
Request/response examples
Error response documentation
Security requirements
Rate limiting information

Before you install

Read the whole file first. Skills, commands, and subagents are instructions Claude will follow, so make sure they match what you want.
Check which tools, scripts, or MCP servers it uses. Local servers and scripts run with your permissions.
Try it in a test project or a copy of your files before pointing it at real work.
Pin the version you tested, and review changes before updating.
Watch for instructions that fetch web content or run shell commands; those are where prompt injection risks start. See our prompt injection guide.

FAQ

What is Api Docs by spencermarx?

Api Docs by spencermarx is a subagent for Claude Code and Claude Cowork from the spencermarx/open-code-review repository on GitHub. Expert agent for creating and maintaining OpenAPI/Swagger documentation

How do I install Api Docs by spencermarx in Claude Code?

Download docs-api-openapi.md from the repository. Save it to ~/.claude/agents/ to use it in every project, or to .claude/agents/ inside one project to share it through version control. Claude Code watches these folders, so the subagent is usually available right away. Ask Claude to use it by name, or @-mention it to make sure it runs.

Can I use Api Docs by spencermarx in Claude Cowork?

Cowork loads subagents through plugins. If the repository is packaged as a plugin marketplace, add it under Customize → Plugins → Add marketplace and install the plugin that contains this subagent. Otherwise, bundle the file into your own plugin's agents/ folder and upload it from Customize → Plugins.

Is Api Docs by spencermarx safe to install?

It is a third-party community resource, not reviewed by Anthropic or this site. Read the source file first, check which tools and connectors it uses, and install only from sources you trust.

Similar resources

Browse all skills, subagents, and plugins →

Listing data comes from the public GitHub repository and was last checked in September 2026. Excerpts are © their authors and shared under Apache-2.0. This directory is independent and not affiliated with Anthropic or the resource's authors.