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Agent skill

Database Table Creator

by c0x12c in c0x12c/ai-toolkit

Creates database table with full Kotlin synchronization (SQL migration → Table → Entity → Repository → Tests).

No licenceAuto-check passedMobile

Install Database Table Creator

skills CLI
$ npx skills add c0x12c/ai-toolkit --skill database-table-creator -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install c0x12c/ai-toolkit database-table-creator --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/c0x12c/ai-toolkit.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.codex/skills/database-table-creator .claude/skills/database-table-creator && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
database-table-creator
GitHub stars
106
Token cost
~1.1k tokens
SKILL.md length
339 words
Files
5
Skills in repo
33
Repo updated
First seen
Licence
None found

At a glance

Creates database table with full Kotlin synchronization (SQL migration → Table → Entity → Repository → Tests).

  • Works in 2 steps: Create SQL Migration → Run Migration
  • Adding new database tables
  • SKILL.md covers What This Skill Does, Critical Rules, Workflow and Common Mistakes to Avoid, plus 1 more section
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Database Table Creator is an agent skill from c0x12c/ai-toolkit. Creates database table with full Kotlin synchronization (SQL migration → Table → Entity → Repository → Tests). Use when adding new database tables or entities.

Its SKILL.md is about 1.1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files (for example `examples.md`, `kotlin-templates.md` and `validation-checklist.md`).

It sits in Mobile, covering Android development, SQL and Database schema design. It works with Kotlin and SQL.

When your agent uses it

  • Adding new database tables
  • Tasks that involve Android development
  • Tasks that involve SQL

Example prompts

  • “Use the database-table-creator skill to create database table with full Kotlin synchronization (SQL migration → Table → Entity → Repository → Tests)”
  • “/database-table-creator”

Workflow steps

2 steps, taken from the step headings in SKILL.md.

  1. Create SQL Migration
  2. Run Migration

What it can do on your machine

Read from SKILL.md and the folder at commit 96b2c9d. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are sql and bash).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Database Table Creator loads about 1.1k tokens when it runs. Until then it costs about 46 tokens; SKILL.md has 339 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~46
When it runs · the whole SKILL.md, loaded when a task matches
~1.1k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Without a licence we can't republish the file, so here is its outline and opening line. It has 339 words (~1,102 tokens).

“Creates complete database table implementation with SQL migration, Kotlin code, and comprehensive tests.”

— opening of SKILL.md by c0x12c
name
database-table-creator

Read the full SKILL.md on GitHub

Files

SKILL.md and 4 other files in .codex/skills/database-table-creator of c0x12c/ai-toolkit.

  • SKILL.md
  • examples.md
  • kotlin-templates.md
  • migration-template.sql
  • validation-checklist.md

Open the folder on GitHubat commit 96b2c9d

Compare with similar skills

Database Table Creator next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Database Table Creator compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Database Table Creator this skillc0x12c/ai-toolkit106—~1.1kAutomated safety check: PassNone
Data Layer Footgunsmaxrave-dev/kotlin-footguns1k—~4.2kAutomated safety check: PassGPL-3.0
Kotlin Backend Jpa Entity MappingJetBrains/skills3632 repos~1.8kAutomated safety check: PassApache-2.0
Jimmer OrmCoooolfan/XiaomiAlbumSyncer418—~702Automated safety check: PassGPL-3.0
Kotlin Exposed Patternsaffaan-m/ECC274k2 repos~5.2kAutomated safety check: PassMIT
Jooq Best Practicesjvm-skills/jvm-skills140—~2.1kAutomated safety check: PassApache-2.0

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Works with

Categories

Questions about Database Table Creator

What does Database Table Creator do?

Creates database table with full Kotlin synchronization (SQL migration → Table → Entity → Repository → Tests). Database Table Creator is an agent skill from c0x12c/ai-toolkit. Creates database table with full Kotlin synchronization (SQL migration → Table → Entity → Repository → Tests).

When should I use Database Table Creator?

Database Table Creator fits situations like: adding new database tables; tasks that involve Android development; tasks that involve SQL.

How do I install Database Table Creator in Claude Code?

Run `npx skills add c0x12c/ai-toolkit --skill database-table-creator -a claude-code`. Or copy the skill folder (.codex/skills/database-table-creator in c0x12c/ai-toolkit) into .claude/skills/database-table-creator in your project. Claude Code loads it when a task matches its description.

How do I install Database Table Creator in Codex?

Run `npx skills add c0x12c/ai-toolkit --skill database-table-creator -a codex`. Or copy the skill folder (.codex/skills/database-table-creator in c0x12c/ai-toolkit) into .agents/skills/database-table-creator in your project. Codex loads it when a task matches its description.

Can I use Database Table Creator in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add c0x12c/ai-toolkit --skill database-table-creator -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/database-table-creator, .gemini/skills/database-table-creator, .github/skills/database-table-creator and .opencode/skills/database-table-creator in your project.

What does Database Table Creator need to run?

SKILL.md names no scripts, command-line tools or credentials: Database Table Creator is instructions for the agent only.

Does Database Table Creator access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Database Table Creator safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Database Table Creator use?

No licence was found for Database Table Creator or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Database Table Creator use?

About 1.1k tokens (SKILL.md is roughly 4.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Database Table Creator?

Skills that share tags, products or a category with Database Table Creator: Data Layer Footguns (maxrave-dev/kotlin-footguns, 1k stars), Kotlin Backend Jpa Entity Mapping (JetBrains/skills, 363 stars), Jimmer Orm (Coooolfan/XiaomiAlbumSyncer, 418 stars) and Kotlin Exposed Patterns (affaan-m/ECC, 274k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Database Table Creator?

c0x12c (a GitHub organization) maintains it in c0x12c/ai-toolkit, which has 106 GitHub stars. The repository holds 33 skills in this directory. The repository was last updated on June 18, 2026.

Source: c0x12c/ai-toolkit on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.