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full-stack-cen-template: Skill for Claude Code

.agents/skills/db-migrations/SKILL.md

db-migrations is a skill for Claude Code, Codex from felixpahlke/full-stack-cen-template. It costs 28 tokens per session (396 once invoked), scanned A, original, no licence file.

A tool for creating and managing Alembic database migrations for a SQLModel database. Alembic migrations record changes to database tables so they can be applied or undone safely.

In plain words
What is it for?
Use it to create, inspect, apply, and recover database migrations, including checking the exact migration version required at startup.
Why use it?
It helps keep the database structure in step with the code and checks that the application starts from the expected migration version.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing. Also seen: installed under .agents/ (shared by several agents).

This is felixpahlke/full-stack-cen-template's own configuration. It tells Claude Code and Codex how to work on full-stack-cen-template 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 full-stack-cen-template configures →

not rated 2repo 2mo ago A scan 28 tokens no licence
View source ↗ felixpahlke/full-stack-cen-template
Reuse

Borrowing it

Nothing to install: this file belongs to felixpahlke/full-stack-cen-template. 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/felixpahlke/full-stack-cen-template/oauth-proxy/.agents/skills/db-migrations/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/felixpahlke/full-stack-cen-template

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-migrations

README.md
[![agentmods](https://agentmods.dev/badge/skills/felixpahlke/full-stack-cen-template/db-migrations/github.svg)](https://agentmods.dev/skills/felixpahlke/full-stack-cen-template/db-migrations)
Your own site
<a href="https://agentmods.dev/skills/felixpahlke/full-stack-cen-template/db-migrations"><img src="https://agentmods.dev/badge/skills/felixpahlke/full-stack-cen-template/db-migrations/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-migrations

Your own site · 80×15
<a href="https://agentmods.dev/skills/felixpahlke/full-stack-cen-template/db-migrations"><img src="https://agentmods.dev/badge/skills/felixpahlke/full-stack-cen-template/db-migrations.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 28 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 396 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 $0.00028 $0.00396
Opus 5.5 $0.00011 $0.00158
Sonnet 5.5 $0.00006 $0.00079
Haiku 4.5 $0.00003 $0.00040

Measured 2mo ago against content hash edf767e471af, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

db-migrations 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 2mo 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.

.agents/skills/db-migrations/SKILL.md · 33 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. 2mo ago First seen · 33 lines · 28 tokens per session scan A edf767e471af

Subscribe to this mod's changes

db-migrations is a skill published in the GitHub repository felixpahlke/full-stack-cen-template (2 stars, last pushed 2mo ago), with no licence file. It adds 28 tokens to every session and 396 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 2026-08-31.

Databases
Related

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db-migrations next to 6 skills from other repositories
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