database-schema

database-schema is a command for Claude Code from Amey-Thakur/AI-SKILLS. It costs 19 tokens per session (399 once invoked), scanned A, original, MIT.

A design prompt for turning application requirements into a database schema: the tables or collections, fields, relationships, rules, and indexes that store the data.

In plain words
What is it for?
Use it to produce relationship definitions, constraints, query-focused indexes, and ready-to-adapt CREATE TABLE statements.
Why use it?
It helps prevent duplicated or inconsistent data and makes the database enforce important correctness rules.

Command for Claude Code

Written for Claude Code: argument-hint in frontmatter.

Good fit Use it to produce relationship definitions, constraints, query-focused indexes, and ready-to-adapt CREATE TABLE statements.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/amey-thakur/ai-skills/database-schema
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/Amey-Thakur/AI-SKILLS

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for database-schema

README.md
[![agentmods](https://agentmods.dev/badge/commands/amey-thakur/ai-skills/database-schema/github.svg)](https://agentmods.dev/commands/amey-thakur/ai-skills/database-schema)
Your own site
<a href="https://agentmods.dev/commands/amey-thakur/ai-skills/database-schema"><img src="https://agentmods.dev/badge/commands/amey-thakur/ai-skills/database-schema/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for database-schema

Your own site · 80×15
<a href="https://agentmods.dev/commands/amey-thakur/ai-skills/database-schema"><img src="https://agentmods.dev/badge/commands/amey-thakur/ai-skills/database-schema.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 19 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 399 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00019 $0.00399
Opus 5 $0.00010 $0.00199
Sonnet 5 $0.00004 $0.00080
Haiku 4.5 $0.00002 $0.00040

Measured 9d ago against content hash fbb7e4a4e475, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

database-schema scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

commands/database-schema.md · 41 lines

What it actually says

You were invoked as a slash command. The user's input:

$ARGUMENTS

Use that input to fill this prompt's variables (take the main content, topic, or task from it; ask only if a required value is missing and not supplied), then follow the prompt exactly.


Design a database schema for: {requirements}

Database and context: {database}

Produce:

  1. The tables (or collections), each with columns, types, and a primary key. Model the entities and their relationships from the domain.
  2. The relationships: foreign keys and cardinality (one-to-many, many-to-many with a join table), with the referential-integrity constraints.
  3. Constraints that enforce correctness at the data layer: NOT NULL, UNIQUE, CHECK, defaults, enums. Let the database protect its own invariants.
  4. Indexes for the queries this schema will actually serve: index the columns used in WHERE, JOIN, and ORDER BY for the common access patterns (say what they are), and note the write cost so you do not over-index.
  5. The DDL (CREATE TABLE statements) for the chosen database, ready to run or adapt.

Rules: normalize to avoid update anomalies, then denormalize deliberately only where a real read pattern justifies it (say why). Design from the access patterns, not just the entities: the queries you must serve shape the indexes and sometimes the tables. Choose types precisely (right integer size, timestamp with time zone, decimal for money not float). For NoSQL, design around the access patterns first (single-table/denormalized as the store demands). Flag scale concerns (a column that will need partitioning, a hot table) and where requirements are ambiguous.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 9d ago First seen · 41 lines · 19 tokens per session scan A fbb7e4a4e475

Subscribe to this mod's changes

database-schema is a command published in the GitHub repository Amey-Thakur/AI-SKILLS (7 stars, last pushed 6d ago), licensed MIT. It adds 19 tokens to every session and 399 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.