Migrate
softspark/ai-toolkit
Run/create DB migrations (Alembic, Prisma, Laravel, Django, Flyway, Drizzle); checks backup.
Write and review Rails database migrations safely, including reversible changes, lock-aware operations, and rollout sequencing.
Install Rails Migrations
$ npx skills add marckohlbrugge/37signals-skills --skill rails-migrations -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install marckohlbrugge/37signals-skills rails-migrations --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/marckohlbrugge/37signals-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/rails-migrations .claude/skills/rails-migrations && rm -rf skills-srcUse ~/.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/
Install the "rails-migrations" agent skill from https://github.com/marckohlbrugge/37signals-skills/tree/main/skills/rails-migrations into .claude/skills/rails-migrations/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "rails-migrations", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/marckohlbrugge/37signals-skills/tree/main/skills/rails-migrationsType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add marckohlbrugge/37signals-skills --skill rails-migrations -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install marckohlbrugge/37signals-skills rails-migrations --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/marckohlbrugge/37signals-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/rails-migrations .agents/skills/rails-migrations && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "rails-migrations" agent skill from https://github.com/marckohlbrugge/37signals-skills/tree/main/skills/rails-migrations into .agents/skills/rails-migrations/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "rails-migrations", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add marckohlbrugge/37signals-skills --skill rails-migrations -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install marckohlbrugge/37signals-skills rails-migrations --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/marckohlbrugge/37signals-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/rails-migrations .cursor/skills/rails-migrations && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "rails-migrations" agent skill from https://github.com/marckohlbrugge/37signals-skills/tree/main/skills/rails-migrations into .cursor/skills/rails-migrations/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "rails-migrations", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/marckohlbrugge/37signals-skills.git --path skills/rails-migrations--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add marckohlbrugge/37signals-skills --skill rails-migrations -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install marckohlbrugge/37signals-skills rails-migrations --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/marckohlbrugge/37signals-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/rails-migrations .gemini/skills/rails-migrations && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "rails-migrations" agent skill from https://github.com/marckohlbrugge/37signals-skills/tree/main/skills/rails-migrations into .gemini/skills/rails-migrations/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "rails-migrations", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install marckohlbrugge/37signals-skills rails-migrationsInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add marckohlbrugge/37signals-skills --skill rails-migrations -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/marckohlbrugge/37signals-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/rails-migrations .github/skills/rails-migrations && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "rails-migrations" agent skill from https://github.com/marckohlbrugge/37signals-skills/tree/main/skills/rails-migrations into .github/skills/rails-migrations/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "rails-migrations", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add marckohlbrugge/37signals-skills --skill rails-migrations -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install marckohlbrugge/37signals-skills rails-migrations --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/marckohlbrugge/37signals-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/rails-migrations .opencode/skills/rails-migrations && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "rails-migrations" agent skill from https://github.com/marckohlbrugge/37signals-skills/tree/main/skills/rails-migrations into .opencode/skills/rails-migrations/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "rails-migrations", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
rails-migrations- GitHub stars
- 724
- Token cost
- ~1.2k tokens
- SKILL.md length
- 547 words
- Files
- 1
- Skills in repo
- 8
- Repo updated
- First seen
- Licence
- None found
At a glance
Write and review Rails database migrations safely, including reversible changes, lock-aware operations, and rollout sequencing.
- Changing schema
- SKILL.md covers Rules, Script Backfills (not…, Safe Patterns and Constraints: a deliberate…, plus 4 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Tasks that involve Backend development
What it does
Rails Migrations is an agent skill from marckohlbrugge/37signals-skills. Write and review Rails database migrations safely, including reversible changes, lock-aware operations, and rollout sequencing. Use when adding or changing schema, indexes, constraints, or backfills.
Its SKILL.md is about 1.2k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Backend & APIs, covering Backend development and Database migrations. It works with SQL. The repository describes itself as: Unofficial agent skills + reference guide that teach AI coding assistants to write Rails the 37signals way — extracted from Fizzy, Campfire, and DHH's code reviews.
When your agent uses it
- Changing schema
- Tasks that involve Backend development
- Tasks that involve Database migrations
Example prompts
- “/rails-migrations”
What it can do on your machine
Read from SKILL.md and the folder at commit c58e7d5. 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.
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
Rails Migrations loads about 1.2k tokens when it runs. Until then it costs about 54 tokens; SKILL.md has 547 words of instructions outside code blocks.
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 547 words (~1,166 tokens).
“Use for schema changes and migration safety.”
- name
- rails-migrations
- disable-model-invocation
- true
Files
Just SKILL.md in skills/rails-migrations of marckohlbrugge/37signals-skills.
Open the folder on GitHubat commit c58e7d5
Compare with similar skills
Rails Migrations 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Rails Migrations this skillmarckohlbrugge/37signals-skills | 724 | — | ~1.2k | Automated safety check: Pass | None | |
| Migratesoftspark/ai-toolkit | 179 | — | ~1.3k | Automated safety check: Notes | Apache-2.0 | |
| cmux Backend Rulesmanaflow-ai/cmux | 28k | 1 repos | ~682 | Automated safety check: Pass | Custom licence | |
| Geoflowyaojingang/GEOFlow | 3.8k | — | ~722 | Automated safety check: Pass | AGPL-3.0 | |
| Saleor Django Schema Migrationsaleor/saleor | 23k | — | ~1k | Automated safety check: Pass | BSD-3-Clause | |
| Twenty Entity Runner Actionstwentyhq/twenty | 58k | — | ~3.1k | Automated safety check: Pass | Custom licence |
Similar skills
cmux Backend Rules
manaflow-ai/cmux
Sets the backend TypeScript and Cloud VM rules for cmux: Effect-based services, thin route handlers, Postgres as source of truth, migrations and provider secrets.
Geoflow
yaojingang/GEOFlow
Operate/develop GEOFlow CLI/Laravel/admin/API, topics/专题 and topic tasks, theme libraries/replication, sites/leads/Agent, channel sync and legacy yao-geoflow-cli/design/template migration.
Saleor Django Schema Migration
saleor/saleor
Generates and splits Django schema migrations for Saleor with manage.py makemigrations, enforcing one new model or one field change per migration file.
Twenty Entity Runner Actions
twentyhq/twenty
Step four of adding a syncable entity in the Twenty server: write create, update and delete action handlers that run workspace migrations against the database.
Debug Using Debugbar
hexlet-volunteers/hexlet-sicp
Inspect what a Laravel request actually did — queries, exceptions, timing, cache, auth, views — by reading the profiling data Laravel Debugbar already captured, via Artisan commands.
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Related
Works with
Categories
Questions about Rails Migrations
What does Rails Migrations do?
Write and review Rails database migrations safely, including reversible changes, lock-aware operations, and rollout sequencing. Rails Migrations is an agent skill from marckohlbrugge/37signals-skills. Write and review Rails database migrations safely, including reversible changes, lock-aware operations, and rollout sequencing.
When should I use Rails Migrations?
Rails Migrations fits situations like: changing schema; tasks that involve Backend development; tasks that involve Database migrations.
How do I install Rails Migrations in Claude Code?
Run `npx skills add marckohlbrugge/37signals-skills --skill rails-migrations -a claude-code`. Or copy the skill folder (skills/rails-migrations in marckohlbrugge/37signals-skills) into .claude/skills/rails-migrations in your project. Claude Code loads it when a task matches its description.
How do I install Rails Migrations in Codex?
Run `npx skills add marckohlbrugge/37signals-skills --skill rails-migrations -a codex`. Or copy the skill folder (skills/rails-migrations in marckohlbrugge/37signals-skills) into .agents/skills/rails-migrations in your project. Codex loads it when a task matches its description.
Can I use Rails Migrations 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 marckohlbrugge/37signals-skills --skill rails-migrations -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/rails-migrations, .gemini/skills/rails-migrations, .github/skills/rails-migrations and .opencode/skills/rails-migrations in your project.
What does Rails Migrations need to run?
SKILL.md names no scripts, command-line tools or credentials: Rails Migrations is instructions for the agent only.
Does Rails Migrations 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 Rails Migrations 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 Rails Migrations use?
No licence was found for Rails Migrations or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Rails Migrations use?
About 1.2k tokens (SKILL.md is roughly 4.7k 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 Rails Migrations?
Skills that share tags, products or a category with Rails Migrations: Migrate (softspark/ai-toolkit, 179 stars), cmux Backend Rules (manaflow-ai/cmux, 28k stars), Geoflow (yaojingang/GEOFlow, 3.8k stars) and Saleor Django Schema Migration (saleor/saleor, 23k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Rails Migrations?
marckohlbrugge (a GitHub user) maintains it in marckohlbrugge/37signals-skills, which has 724 GitHub stars. The repository holds 8 skills in this directory. The repository was last updated on June 9, 2026.
Source: marckohlbrugge/37signals-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.