Does it overwrite my existing documentation?

No, the skill is idempotent and will skip files that already exist to protect your manual updates and custom documentation.

Can I use this skill for a frontend-only project?

No, this skill is designed to be conditional. It will skip execution if it does not detect backend code or database migrations/models.

Is the generated API documentation standard-compliant?

Yes, the api_spec.md file follows the OpenAPI 3.0 structure, including endpoint tables and request/response examples.

Which backend frameworks are supported for auto-discovery?

The skill detects popular frameworks including Express, Fastify, NestJS, and FastAPI, as well as ORMs/ODMs like Prisma, Mongoose, and Sequelize.

How are the database diagrams rendered?

The skill generates diagrams in Mermaid erDiagram format, which can be natively rendered in GitHub, GitLab, and most Markdown viewers.

Backend Documentation Creator

Name: Backend Documentation Creator
Author: levnikolaevich

bylevnikolaevich

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API Development

Generates comprehensive OpenAPI-compliant API specifications and Mermaid-based database ER diagrams for backend projects.

The Backend Documentation Creator is an L3 automation worker designed to standardize technical documentation for server-side applications. It conditionally generates two primary files—api_spec.md and database_schema.md—only when a backend or database is detected in the project stack. By transforming raw context like routes, authentication schemes, and schema models into structured Markdown, it provides teams with immediate, high-quality documentation. It ensures architectural clarity without manual effort, utilizing OpenAPI 3.0 standards for APIs and Mermaid syntax for visual data modeling.

Key Features

01Generates OpenAPI 3.0 compliant API specifications automatically

02Idempotent processing that protects existing files from being overwritten

03Creates visual ER diagrams using Mermaid syntax for database schemas

04Automated discovery of routes, auth schemes, and data models via context store

05Conditional execution triggered by the detection of backends or databases

0621 GitHub stars

Use Cases

01Maintaining standardized API documentation across a distributed multi-repo architecture

02Bootstrapping technical documentation for new microservices using Express, NestJS, or FastAPI

03Visualizing complex relational or document-based database schemas for team onboarding

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add levnikolaevich/claude-code-skills ln-113-backend-docs-creator

For use in Claude.ai and ChatGPT

Download Skill