kokkai-mcp: Agent for Claude Code

.claude/agents/database-specialist.md

database-specialist is an agent for Claude Code from harutomo51/kokkai-mcp. It costs 184 tokens per session (2,390 once invoked), scanned A, original, no licence file.

A database-focused coding agent for web application projects. It designs how data is organized in tables, including relationships, migrations, indexes, sample data, and queries.

In plain words
What is it for?
Creating entity-relationship diagrams, schema documents, migration files, indexes, seed data, and query improvements.
Why use it?
It helps make database changes structured and maintainable while considering how the application will read and write data. It is designed to be called through an Agent Router, not started directly.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter.

This is harutomo51/kokkai-mcp's own configuration. It tells Claude Code how to work on kokkai-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything kokkai-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to harutomo51/kokkai-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/harutomo51/kokkai-mcp/main/.claude/agents/database-specialist.md
Clone the repo
git clone --depth 1 https://github.com/harutomo51/kokkai-mcp

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-specialist

README.md
[![agentmods](https://agentmods.dev/badge/agents/harutomo51/kokkai-mcp/database-specialist/github.svg)](https://agentmods.dev/agents/harutomo51/kokkai-mcp/database-specialist)
Your own site
<a href="https://agentmods.dev/agents/harutomo51/kokkai-mcp/database-specialist"><img src="https://agentmods.dev/badge/agents/harutomo51/kokkai-mcp/database-specialist/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-specialist

Your own site · 80×15
<a href="https://agentmods.dev/agents/harutomo51/kokkai-mcp/database-specialist"><img src="https://agentmods.dev/badge/agents/harutomo51/kokkai-mcp/database-specialist.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 184 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,390 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 unknown 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 $0.00184 $0.02390
Opus 5 $0.00092 $0.01195
Sonnet 5 $0.00037 $0.00478
Haiku 4.5 $0.00018 $0.00239

Measured 8d ago against content hash 1b236f38458d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

database-specialist 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 8d 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/agents/database-specialist.md · 187 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 8d ago First seen · 187 lines · 184 tokens per session scan A 1b236f38458d

Subscribe to this mod's changes

database-specialist is an agent published in the GitHub repository harutomo51/kokkai-mcp (1 stars, last pushed 1mo ago), with no licence file. It adds 184 tokens to every session and 2,390 once invoked, about $0.0009 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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