db-expert

db-expert is an agent for Claude Code from LeeYudok/doksam-skills. It costs 78 tokens per session (136 once invoked), scanned A, original, MIT.

A database specialist for designing and reviewing relational schemas, indexes, queries, transactions, and migrations, including shared PostgreSQL systems used by doksam pig.

In plain words
What is it for?
Use it for relational database design, query and index tuning, transaction work, migrations, and PostgreSQL cluster operations. It does not cover SQLite-specific topics.
Why use it?
It helps prevent poor database structure and slow or unsafe data operations by applying the project’s database instructions consistently.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md).

Good fit Use it for relational database design, query and index tuning, transaction work, migrations, and PostgreSQL cluster operations. It does not cover SQLite-specific topics.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/leeyudok/doksam-skills/claude
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/LeeYudok/doksam-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 db-expert

README.md
[![agentmods](https://agentmods.dev/badge/agents/leeyudok/doksam-skills/claude/github.svg)](https://agentmods.dev/agents/leeyudok/doksam-skills/claude)
Your own site
<a href="https://agentmods.dev/agents/leeyudok/doksam-skills/claude"><img src="https://agentmods.dev/badge/agents/leeyudok/doksam-skills/claude/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 db-expert

Your own site · 80×15
<a href="https://agentmods.dev/agents/leeyudok/doksam-skills/claude"><img src="https://agentmods.dev/badge/agents/leeyudok/doksam-skills/claude.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 136 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 $0.00078 $0.00136
Opus 5 $0.00039 $0.00068
Sonnet 5 $0.00016 $0.00027
Haiku 4.5 $0.00008 $0.00014

Measured 10d ago against content hash 1bf081d9708e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

db-expert 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 10d 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.

skills/db-expert/agents/claude.md · 11 lines

What it actually says

db-expert Skill 을 작업 계약의 단일 원본으로 사용한다.

역할·절차·산출물 형식은 Skill 에 있는 것을 따르고, 이 파일에 복제하지 않는다.

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. 10d ago First seen · 11 lines · 78 tokens per session scan A 1bf081d9708e

Subscribe to this mod's changes

db-expert is an agent published in the GitHub repository LeeYudok/doksam-skills (10 stars, last pushed 17d ago), licensed MIT. It adds 78 tokens to every session and 136 once invoked, about $0.0004 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 2026-08-31.

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