db-ops

db-ops is a skill for Claude Code, Codex from cilangzzz/yudao-skill-pro. It costs 180 tokens per session (3,052 once invoked), scanned D, original, MIT.

A documented workflow for Claude Code to run database commands in the yudao project. It uses local database clients or a remote SSH connection, and guides the agent through previewing, executing, and checking changes.

In plain words
What is it for?
It helps with creating tables, changing data, querying records, checking table structure, and comparing data in MySQL, PostgreSQL, or other supported databases.
Why use it?
It reduces the risk of running the wrong SQL or connecting to the wrong database. It also makes missing clients, permissions, and connection settings easier to identify.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: reads .claude/ paths; mentions Claude Code.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is python .claude/skills/ssh-skill/scripts/ssh_execute.py \.

Good fit It helps with creating tables, changing data, querying records, checking table structure, and comparing data in MySQL, PostgreSQL, or other supported databases.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/cilangzzz/yudao-skill-pro
agentmods
npx agentmods add skills/cilangzzz/yudao-skill-pro/db-ops

Made for: Claude Code, Codex.

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-ops

README.md
[![agentmods](https://agentmods.dev/badge/skills/cilangzzz/yudao-skill-pro/db-ops/github.svg)](https://agentmods.dev/skills/cilangzzz/yudao-skill-pro/db-ops)
Your own site
<a href="https://agentmods.dev/skills/cilangzzz/yudao-skill-pro/db-ops"><img src="https://agentmods.dev/badge/skills/cilangzzz/yudao-skill-pro/db-ops/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-ops

Your own site · 80×15
<a href="https://agentmods.dev/skills/cilangzzz/yudao-skill-pro/db-ops"><img src="https://agentmods.dev/badge/skills/cilangzzz/yudao-skill-pro/db-ops.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 180 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,052 The whole file, excluding the scripts and references it only reads on demand.
Security scan D 2 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 $0.00180 $0.03052
Opus 5.5 $0.00072 $0.01221
Sonnet 5.5 $0.00036 $0.00610
Haiku 4.5 $0.00018 $0.00305

Measured 3d ago against content hash 381d458a82ab, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade D, and why

db-ops scanned grade D with 2 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 3d 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.

Reaches for credential fileshighPrivilege escalation

SSH keys, cloud credentials, git-credentials, .npmrc, /etc/shadow: reading these is how a config file becomes a credential leak.

IdentityFile ~/.ssh/id_rsa

Enumerates other installed skillsmediumAgent snooping

Other skills' SKILL.md files reveal prompts, capabilities and secrets that should be invisible to peers.

ls -d .claude/skills/ssh-skill 2>/dev/null \
skills/db-ops/SKILL.md · 320 lines

How it starts

The opening of the file, as written. The whole thing — 320 lines — stays where its author put it; the contents beside it link to each section on GitHub.

数据库操作技能 (db-ops)

本技能提供一套安全的工作流让 agent 在 yudao 项目中执行数据库操作。技能本身只是文档与流程指引,真正的执行依赖:

  • 本地环境:DB 客户端(mysql / psql / sqlplus / sqlcmd 等)
  • 远程环境:badseal/ssh-skill(首次使用前会自动检测与安装)

快速上手

这是什么

一个轻量级指引技能,让 Claude Code 在 yudao 项目里安全地执行数据库操作。它本身不包含可执行脚本,而是:

  • 约定工作流:解析 yaml → 选择连接方式 → dry-run → 执行 → 自检
  • 委托底层操作:本地 DB 客户端、远程 badseal/ssh-skill

何时触发

agent 看到以下意图时会自动调用本技能:

  • "帮我跑一下 SQL"、"建表"、"插入测试数据"
  • "验证一下表结构"、"对比数据"
  • 任何涉及 yudao 数据库的 DDL / DML / DQL

首次使用

agent 会自动检查以下 3 件事:

检查 缺失时 agent 行为
.claude/skills/ssh-skill/ 是否存在 提示运行 npx skills add https://github.com/badseal/ssh-skill --skill ssh-skill
mysql / psql / sqlplus 等客户端是否安装 询问用户安装方式
当前激活的 profile 与 SSH 别名 询问用户

用户需提前配置:

# ~/.ssh/config 中预先添加(如需远程连接)
Host yudao-dev-db
  HostName dev-db.internal
  User op
  IdentityFile ~/.ssh/id_rsa

故障排查

症状 可能原因 处理
ssh-skill not found 未安装 npx skills add ...
mysql: command not found 客户端缺失 安装 mysql-client
permission denied DB 用户权限不足 切换有权限的 profile 或申请授权
connection refused host/port 错 / SSH 别名错 核对 application-{profile}.yaml 与 ~/.ssh/config
YES-DESTRUCTIVE required prod DDL 未带 token 重新执行并显式输入 token

0. 前置检查(每次对话首次使用时)

agent 必须先做以下 4 项检查,并在结果汇总后再继续:

0.1 检测 badseal/ssh-skill 是否已安装

ls -d .claude/skills/ssh-skill 2>/dev/null \
  || ls -d ~/.claude/skills/ssh-skill 2>/dev/null \
  || echo "NOT_INSTALLED"
  • 已安装:跳过 0.2
  • 未安装:执行 0.2

0.2 安装 badseal/ssh-skill(未安装时执行一次)

npx skills add https://github.com/badseal/ssh-skill --skill ssh-skill

安装位置:项目级 .claude/skills/ssh-skill/(如需用户级用 --global)。 安装后告知用户:badseal/ssh-skill 的官方文档地址 https://github.com/badseal/ssh-skill

0.3 检测本地 DB 客户端

for cmd in mysql psql sqlplus sqlcmd disql ksql; do
  command -v "$cmd" >/dev/null && echo "$cmd: $(command -v $cmd)" || echo "$cmd: NOT FOUND"
done

Read the full file on GitHub · 320 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. 3d ago First seen · 320 lines · 180 tokens per session scan D 381d458a82ab

Subscribe to this mod's changes

db-ops is a skill published in the GitHub repository cilangzzz/yudao-skill-pro (35 stars, last pushed 4d ago), licensed MIT. It adds 180 tokens to every session and 3,052 once invoked, about $0.0007 per session on Opus 5.5. A static security scan graded it D with 2 findings (reaches for credential files, enumerates other installed skills). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-10-15.

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