database

database is a skill for Claude Code, Codex from CodelyTV/agentic_programming-course. It costs 20 tokens per session (104 once invoked), scanned A, original, MIT.

A set of database rules for designing tables, fields, migrations, and queries. It covers required fields, table names, and text column types.

In plain words
What is it for?
Use it when creating or changing database schemas, writing migrations, modeling data, or editing database queries.
Why use it?
It keeps database changes consistent and prevents different parts of a project from using conflicting conventions.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

Good fit Use it when creating or changing database schemas, writing migrations, modeling data, or editing database queries.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/codelytv/agentic_programming-course/database
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 CodelyTV/agentic_programming-course --skill database
Clone the repo
git clone --depth 1 https://github.com/CodelyTV/agentic_programming-course

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 database

README.md
[![agentmods](https://agentmods.dev/badge/skills/codelytv/agentic_programming-course/database/github.svg)](https://agentmods.dev/skills/codelytv/agentic_programming-course/database)
Your own site
<a href="https://agentmods.dev/skills/codelytv/agentic_programming-course/database"><img src="https://agentmods.dev/badge/skills/codelytv/agentic_programming-course/database/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

Your own site · 80×15
<a href="https://agentmods.dev/skills/codelytv/agentic_programming-course/database"><img src="https://agentmods.dev/badge/skills/codelytv/agentic_programming-course/database.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 20 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 104 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 $0.00020 $0.00104
Opus 5.5 $0.00008 $0.00042
Sonnet 5.5 $0.00004 $0.00021
Haiku 4.5 $0.00002 $0.00010

Measured 1mo ago against content hash a58f443ae096, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

database 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 1mo 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.

06-evolution/2-mcp_skills_subagents_documentation/2-skills/.agents/skills/database/SKILL.md · 13 lines

What it actually says

Read and follow the database conventions documented in the resources before making changes to database schemas or queries.

Resources

  • not-null-fields.md — NOT NULL field conventions
  • table-naming-singular-plural-convention.md — Table naming conventions (singular vs plural)
  • text-over-varchar-char-convention.md — Use TEXT over VARCHAR/CHAR convention
Files

What ships with it

3 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. 1mo ago First seen · 13 lines · 20 tokens per session scan A a58f443ae096

Subscribe to this mod's changes

database is a skill published in the GitHub repository CodelyTV/agentic_programming-course (38 stars, last pushed 5mo ago), licensed MIT. It adds 20 tokens to every session and 104 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-08-30.

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