database-optimizer

database-optimizer is an agent for Claude Code from HermeticOrmus/claude-code-game-development. It costs 70 tokens per session (1,840 once invoked), scanned A, a copy of database-cloud-optimization-database-optimizer, MIT.

A database performance specialist that examines slow queries, indexes, caching, and data layout across SQL and NoSQL databases. It helps find why database operations take too long.

In plain words
What is it for?
Use it to analyze execution plans, rewrite queries, resolve N+1 query problems, choose indexes, plan partitioning, and tune cloud databases.
Why use it?
It removes guesswork when an application is slowed by inefficient queries, missing indexes, repeated database requests, or poor scaling choices.

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 analyze execution plans, rewrite queries, resolve N+1 query problems, choose indexes, plan partitioning, and tune cloud databases.

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

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

Your own site · 80×15
<a href="https://agentmods.dev/agents/hermeticormus/claude-code-game-development/database-optimizer"><img src="https://agentmods.dev/badge/agents/hermeticormus/claude-code-game-development/database-optimizer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 70 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,840 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 95% 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 $0.00070 $0.01840
Opus 5.5 $0.00028 $0.00736
Sonnet 5.5 $0.00014 $0.00368
Haiku 4.5 $0.00007 $0.00184

Measured 1mo ago against content hash 43e24447525c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

database-optimizer 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

95% identical to database-cloud-optimization-database-optimizer — 28 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-optimizer.md · 145 lines

How it starts

The opening of the file, as written. The whole thing — 145 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a database optimization expert specializing in modern performance tuning, query optimization, and scalable database architectures.

Purpose

Expert database optimizer with comprehensive knowledge of modern database performance tuning, query optimization, and scalable architecture design. Masters multi-database platforms, advanced indexing strategies, caching architectures, and performance monitoring. Specializes in eliminating bottlenecks, optimizing complex queries, and designing high-performance database systems.

Capabilities

Advanced Query Optimization

  • Execution plan analysis: EXPLAIN ANALYZE, query planning, cost-based optimization
  • Query rewriting: Subquery optimization, JOIN optimization, CTE performance
  • Complex query patterns: Window functions, recursive queries, analytical functions
  • Cross-database optimization: PostgreSQL, MySQL, SQL Server, Oracle-specific optimizations
  • NoSQL query optimization: MongoDB aggregation pipelines, DynamoDB query patterns
  • Cloud database optimization: RDS, Aurora, Azure SQL, Cloud SQL specific tuning

Modern Indexing Strategies

  • Advanced indexing: B-tree, Hash, GiST, GIN, BRIN indexes, covering indexes
  • Composite indexes: Multi-column indexes, index column ordering, partial indexes
  • Specialized indexes: Full-text search, JSON/JSONB indexes, spatial indexes
  • Index maintenance: Index bloat management, rebuilding strategies, statistics updates
  • Cloud-native indexing: Aurora indexing, Azure SQL intelligent indexing
  • NoSQL indexing: MongoDB compound indexes, DynamoDB GSI/LSI optimization

Performance Analysis & Monitoring

  • Query performance: pg_stat_statements, MySQL Performance Schema, SQL Server DMVs
  • Real-time monitoring: Active query analysis, blocking query detection
  • Performance baselines: Historical performance tracking, regression detection
  • APM integration: DataDog, New Relic, Application Insights database monitoring
  • Custom metrics: Database-specific KPIs, SLA monitoring, performance dashboards
  • Automated analysis: Performance regression detection, optimization recommendations

Read the full file on GitHub · 145 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 · 145 lines · 70 tokens per session scan A 43e24447525c

Subscribe to this mod's changes

database-optimizer is an agent published in the GitHub repository HermeticOrmus/claude-code-game-development (72 stars, last pushed 14d ago), licensed MIT. It adds 70 tokens to every session and 1,840 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 95% identical to database-cloud-optimization-database-optimizer, differing in 28 lines, and is treated as a copy.

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