database-schema-design SKILL.md skillA
database-schema-design from timwukp/agent-skills-best-practice is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add timwukp/agent-skills-best-practice/database-schema-design@v1.0.0Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- timwukp/agent-skills-best-practice
- Path
skills/skills/database-schema-design/SKILL.md- Versions recorded
- 1
- Latest version
- v1.0.0, committed May 29, 2026
- Size
- 6,834 bytes
- Repository stars
- 12
- License
- MIT
Designs normalized database schemas with migration scripts, indexing strategies, and relationship handling. Supports SQL, Flyway, Liquibase, and Prisma. Triggers on: "design database", "create schema", "database migration", "design tables".
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Database Schema Design ## Instructions ### Step 1: Gather Requirements Ask: 1. What entities need to be stored? (e.g., users, orders, products) 2. What are the relationships? (one-to-one, one-to-many, many-to-many) 3. What queries will be most common? (affects indexing decisions) 4. Expected scale? (thousands vs millions of rows) 5. Database engine? (PostgreSQL, MySQL, SQLite) 6. Migration tool? (raw SQL, Flyway, Liquibase, Prisma, Alembic) ### Step 2: Design Normalized Schema Apply normalization rules: **First Normal Form (1NF):** - Eliminate repeating groups - Each column holds atomic values - Each row is unique (has primary key) **Second Normal Form (2NF):** - Meet 1NF - Remove partial dependencies on composite keys **Third Normal Form (3NF):** - Meet 2NF - Remove transitive dependencies **When to denormalize:** - Read-heavy workloads with expensive joins - Reporting tables (materialize aggregations) - Caching frequently computed values with clear update triggers Always start normalized, then denormalize with documented justification. ### Step 3: Define Tables Use this format for each table: ```sql CREATE TABLE orders ( …
Read the whole file at its exact version.
How to install
mdr add timwukp/agent-skills-best-practice/database-schema-design@sha256:335caff2ccc92959The line at the top of this page pins the label v1.0.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_gzwg4v6sjkaqbfev)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on May 29, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (6834 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
timwukp/agent-skills-best-practice · 12 stars · license MIT · pushed 2026-09-16 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_gzwg4v6sjkaqbfev GET https://markdownregistry.com/api/v1/resolve?ref=timwukp/agent-skills-best-practice/database-schema-design GET https://markdownregistry.com/api/v1/blob/335caff2ccc9295931c396ef6163da325cbe81e2d00f09ef005ff9e9a62c4b4f
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
More from timwukp/agent-skills-best-practice
Every file in timwukp/agent-skills-best-practice