db-opt

db-opt is a command for Claude Code from pedrol-cmd/brain-drin. It costs 14 tokens per session (82 once invoked), scanned A, original, MIT.

A database-performance checker for finding slow queries and bottlenecks in how data is stored. A database query is a request for data, and an execution plan shows how the database intends to run it.

In plain words
What is it for?
Provide a slow query or an EXPLAIN execution plan to get suggestions for indexes, query rewrites, or schema changes and a performance check.
Why use it?
It helps explain why data requests are slow and suggests targeted changes instead of relying on guesswork.

Command for Claude Code

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.

agentmods
npx agentmods add commands/pedrol-cmd/brain-drin/db-opt
Clone the repo
git clone --depth 1 https://github.com/pedrol-cmd/brain-drin

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 db-opt

README.md
[![agentmods](https://agentmods.dev/badge/commands/pedrol-cmd/brain-drin/db-opt.svg)](https://agentmods.dev/commands/pedrol-cmd/brain-drin/db-opt)
Your own site
<a href="https://agentmods.dev/commands/pedrol-cmd/brain-drin/db-opt"><img src="https://agentmods.dev/badge/commands/pedrol-cmd/brain-drin/db-opt.svg" alt="Measured on agentmods" height="20"></a>
Per session 14 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 82 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00014 $0.00082
Opus 5 $0.00007 $0.00041
Sonnet 5 $0.00003 $0.00016
Haiku 4.5 $0.00001 $0.00008

Measured 4d ago against content hash 49235c135e09, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

db-opt 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 4d 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.

.claude/commands/db-opt.md · 16 lines

What it actually says

/db-opt

Optimizes your data persistence layer.

Usage

  1. Provide a slow query or an execution plan (EXPLAIN).
  2. The agent will suggest indexes, query rewrites, or schema changes.
  3. Verifies the performance improvement.

Specialist Agent

@database-architect

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. 4d ago First seen · 16 lines · 14 tokens per session scan A 49235c135e09

Subscribe to this mod's changes

db-opt is a command published in the GitHub repository pedrol-cmd/brain-drin (11 stars, last pushed 4mo ago), licensed MIT. It adds 14 tokens to every session and 82 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 2026-08-30.