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Document a database with proof of parity v1.0.0

Use this resource to document a relational database from its real schema, with ER diagrams

New

  • 546 downloads
  • 118 likes
  • 205 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install database-schema-documentation

With no option, the skill goes to ~/.agents/skills/; add --agent claude-code (or codex, cursor…) to target an agent.

First time: connect the CLI with

npx --yes palatekit@latest login

The agent queries the database read-only, cross-checks the result against ORM models, migrations, generated types and queries, then compares the docs back to the schema. You get mermaid ER diagrams, a data dictionary per table and a machine-readable schema.json.

Mostly picked by

Updated November 2, 2026

Card for the “Document a database with proof of parity” skill

Details

Works in
Install guides
Generates with
Your agent's model
Licence
MIT

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What you get

  • SKILL.md: phased method, from discovery to proof of parity
  • references/introspection-postgres.md: PostgreSQL introspection
  • references/output-template.md: output template and canonical model contract

Good fit for

  • Your schema has drifted from its documentation and you want to check it
  • A new developer must understand a database with no up-to-date plan

Not for

    Tags

    • database
    • schema
    • documentation
    • erd

    About

    You say

    “Document the production PostgreSQL database read-only: ERD, data dictionary and schema.json.”

    Card for the “Document a database with proof of parity” skill

    Skill published by a-tokyo under the MIT license, delivered in its original version.

    Show more

    How to use it

    1. Install the skill in your agent's skills folder
    2. Ask your agent to document a relational database from its real schema, with ER diagrams
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE1 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • README.md2.9 KB
    • references/csm-contract.md5.3 KB
    • references/hard-cases.md3.7 KB
    • references/introspection-postgres.md11.9 KB
    • references/output-template.md3.3 KB
    • SKILL.md13.1 KB

    Origin and licence

    Listed unmodified

    Author
    a-tokyo
    Source
    github.com/a-tokyo/agent-skills/tree/99652ee6a78759a5ef655388497a2b889ad6c602/skills/database-documentation
    Licence
    MIT

    Notice

    « database-documentation » (a-tokyo, MIT) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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