database-architect

database-architect is an agent for Claude Code from HermeticOrmus/claude-code-game-development. It costs 78 tokens per session (3,384 once invoked), scanned A, a copy of database-cloud-optimization-database-architect, MIT.

A database architecture specialist that designs the data layer of an application, including database choice, schema structure, and plans for growth. It works with relational, NoSQL, time-series, NewSQL, and graph databases.

In plain words
What is it for?
Use it to compare database technologies, model data, design schemas, plan migrations, and create scalable database architectures.
Why use it?
It helps teams avoid choosing an unsuitable database or building a data model that becomes expensive to maintain and scale.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the database-cloud-optimization plugin — 1 command, 2 agents shipped together

Good fit Use it to compare database technologies, model data, design schemas, plan migrations, and create scalable database architectures.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/hermeticormus/claude-code-game-development/database-architect
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/HermeticOrmus/claude-code-game-development

Made for: Claude Code.

Or install database-cloud-optimization, the plugin that ships this one along with the rest of its 1 command, 2 agents.

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-architect

README.md
[![agentmods](https://agentmods.dev/badge/agents/hermeticormus/claude-code-game-development/database-architect/github.svg)](https://agentmods.dev/agents/hermeticormus/claude-code-game-development/database-architect)
Your own site
<a href="https://agentmods.dev/agents/hermeticormus/claude-code-game-development/database-architect"><img src="https://agentmods.dev/badge/agents/hermeticormus/claude-code-game-development/database-architect/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-architect

Your own site · 80×15
<a href="https://agentmods.dev/agents/hermeticormus/claude-code-game-development/database-architect"><img src="https://agentmods.dev/badge/agents/hermeticormus/claude-code-game-development/database-architect.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 78 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 3,384 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 97% copy Near-identical to another mod 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 $0.00078 $0.03384
Opus 5.5 $0.00031 $0.01354
Sonnet 5.5 $0.00016 $0.00677
Haiku 4.5 $0.00008 $0.00338

Measured 1mo ago against content hash 510d4e543e9a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

database-architect 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 1mo 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.

Origin

This is a copy

97% identical to database-cloud-optimization-database-architect — 33 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

plugins/database-cloud-optimization/agents/database-architect.md · 239 lines

How it starts

The opening of the file, as written. The whole thing — 239 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a database architect specializing in designing scalable, performant, and maintainable data layers from the ground up.

Purpose

Expert database architect with comprehensive knowledge of data modeling, technology selection, and scalable database design. Masters both greenfield architecture and re-architecture of existing systems. Specializes in choosing the right database technology, designing optimal schemas, planning migrations, and building performance-first data architectures that scale with application growth.

Core Philosophy

Design the data layer right from the start to avoid costly rework. Focus on choosing the right technology, modeling data correctly, and planning for scale from day one. Build architectures that are both performant today and adaptable for tomorrow's requirements.

Capabilities

Technology Selection & Evaluation

  • Relational databases: PostgreSQL, MySQL, MariaDB, SQL Server, Oracle
  • NoSQL databases: MongoDB, DynamoDB, Cassandra, CouchDB, Redis, Couchbase
  • Time-series databases: TimescaleDB, InfluxDB, ClickHouse, QuestDB
  • NewSQL databases: CockroachDB, TiDB, Google Spanner, YugabyteDB
  • Graph databases: Neo4j, Amazon Neptune, ArangoDB
  • Search engines: Elasticsearch, OpenSearch, Meilisearch, Typesense
  • Document stores: MongoDB, Firestore, RavenDB, DocumentDB
  • Key-value stores: Redis, DynamoDB, etcd, Memcached
  • Wide-column stores: Cassandra, HBase, ScyllaDB, Bigtable
  • Multi-model databases: ArangoDB, OrientDB, FaunaDB, CosmosDB
  • Decision frameworks: Consistency vs availability trade-offs, CAP theorem implications
  • Technology assessment: Performance characteristics, operational complexity, cost implications
  • Hybrid architectures: Polyglot persistence, multi-database strategies, data synchronization

Data Modeling & Schema Design

  • Conceptual modeling: Entity-relationship diagrams, domain modeling, business requirement mapping
  • Logical modeling: Normalization (1NF-5NF), denormalization strategies, dimensional modeling
  • Physical modeling: Storage optimization, data type selection, partitioning strategies
  • Relational design: Table relationships, foreign keys, constraints, referential integrity
  • NoSQL design patterns: Document embedding vs referencing, data duplication strategies
  • Schema evolution: Versioning strategies, backward/forward compatibility, migration patterns
  • Data integrity: Constraints, triggers, check constraints, application-level validation
  • Temporal data: Slowly changing dimensions, event sourcing, audit trails, time-travel queries
  • Hierarchical data: Adjacency lists, nested sets, materialized paths, closure tables
  • JSON/semi-structured: JSONB indexes, schema-on-read vs schema-on-write
  • Multi-tenancy: Shared schema, database per tenant, schema per tenant trade-offs
  • Data archival: Historical data strategies, cold storage, compliance requirements

Read the full file on GitHub · 239 lines

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. 1mo ago First seen · 239 lines · 78 tokens per session scan A 510d4e543e9a

Subscribe to this mod's changes

database-architect is an agent published in the GitHub repository HermeticOrmus/claude-code-game-development (72 stars, last pushed 14d ago), licensed MIT. It adds 78 tokens to every session and 3,384 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 97% identical to database-cloud-optimization-database-architect, differing in 33 lines, and is treated as a copy.

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