data-database-design

data-database-design is a skill for Claude Code, Codex from ChenyCHENYU/wl-skills-design. It costs 77 tokens per session (538 once invoked), scanned A, original, Apache-2.0.

A database design tool for creating or checking entity-relationship diagrams, table structures, data dictionaries, indexes, and DDL. DDL is the SQL used to define database objects such as tables and indexes.

In plain words
What is it for?
Use it to design or review database structures, ER diagrams, data dictionaries, indexes, and table-creation SQL. It is not for diagnosing database connections or ORM runtime errors.
Why use it?
It connects requirements and glossary fields to database columns and catches design inconsistencies before implementation. It also checks that the SQL matches the selected database type.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to design or review database structures, ER diagrams, data dictionaries, indexes, and table-creation SQL. It is not for diagnosing database connections or ORM runtime errors.

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Install with agentmods
npx agentmods add skills/chenychenyu/wl-skills-design/data-database-design
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.

Any agent
npx skills add ChenyCHENYU/wl-skills-design --skill data-database-design
Clone the repo
git clone --depth 1 https://github.com/ChenyCHENYU/wl-skills-design

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 data-database-design

README.md
[![agentmods](https://agentmods.dev/badge/skills/chenychenyu/wl-skills-design/data-database-design.svg)](https://agentmods.dev/skills/chenychenyu/wl-skills-design/data-database-design)
Your own site
<a href="https://agentmods.dev/skills/chenychenyu/wl-skills-design/data-database-design"><img src="https://agentmods.dev/badge/skills/chenychenyu/wl-skills-design/data-database-design.svg" alt="Measured on agentmods" height="20"></a>
Per session 77 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 538 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 $0.00077 $0.00538
Opus 5 $0.00039 $0.00269
Sonnet 5 $0.00015 $0.00108
Haiku 4.5 $0.00008 $0.00054

Measured 8d ago against content hash b39215fc2a32, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

data-database-design 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.

files/.github/skills/data-database-design/SKILL.md · 35 lines

What it actually says

数据库设计

先确定设计 profile

至少确认模块或目标数据库方言。未说明方言时先追问,不再静默默认 MySQL。同步确认租户、软删除、审计字段、主键和并发控制策略;无法确定的策略标记 Pending。

  • create:生成设计并验证本轮产物。
  • validate:只读执行 34 项检查。
  • review:与 validate 相同,只读给出评审结论,不默认保存报告。
  • repair:明确授权后修改既有设计或 DDL。

执行流程

  1. 读取唯一规则源:数据库标准
  2. 分册骨架 开始,并按需读取:
  3. 使用 templates/ 的匿名空白模板;只有需要质量对照时才读取 examples/
  4. 按目标方言校验 DDL,并建立 spec/词典字段到表字段的追溯。
  5. 执行 DB-A/B/C/D/E/X 共 34 项检查:先运行 wl-skills-design verify db 获取 [M] 项机械结论(CLI 不可用时由 Agent 代执行),再判 [J] 项,合并为同一编号的报告。

交付约束

  • 系统字段和软删除不是无条件规则,必须服从已确认 profile。
  • 验证报告必须包含方言、策略、规则 ID、位置和集合差异。
  • 验证模式只读;创建模式仅自动修复本轮新产物。
  • 最终说明 ER、数据字典、DDL、34 项结果和保存状态;只有实际生成或保存的文件才给出路径。
Files

What ships with it

8 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 · 35 lines · 77 tokens per session scan A b39215fc2a32

Subscribe to this mod's changes

data-database-design is a skill published in the GitHub repository ChenyCHENYU/wl-skills-design (5 stars, last pushed 23d ago), licensed Apache-2.0. It adds 77 tokens to every session and 538 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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