Agent skill

Dhh Ruby Style

by Microck in Microck/ordinary-claude-skills

Write Ruby and Rails code in DHH's distinctive 37signals style.

Custom licenceAuto-check passedDevelopment

Install Dhh Ruby Style

skills CLI
$ npx skills add Microck/ordinary-claude-skills --skill dhh-ruby-style -a claude-code

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

GitHub CLI
$ gh skill install Microck/ordinary-claude-skills dhh-ruby-style --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/Microck/ordinary-claude-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills_all/dhh-ruby-style .claude/skills/dhh-ruby-style && 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
dhh-ruby-style
GitHub stars
401
Token cost
~1.4k tokens
SKILL.md length
282 words
Files
2
Skills in repo
97
Repo updated
First seen
Licence
Custom licence

At a glance

Write Ruby and Rails code in DHH's distinctive 37signals style.

  • Works in 9 steps: REST purity: 7 actions only; new… → Fat models: Authorization, broadcasting,… → Thin controllers: 1-5 line actions;… → …
  • Writing Ruby code
  • SKILL.md covers Quick Reference, Detailed References and Philosophy Summary
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Dhh Ruby Style is an agent skill from Microck/ordinary-claude-skills. Write Ruby and Rails code in DHH's distinctive 37signals style. Use this skill when writing Ruby code, Rails applications, creating models, controllers, or any Ruby file. Triggers on Ruby/Rails code generation, refactoring requests, code review, or when the user mentions DHH, 37signals, Basecamp, HEY, or Campfire style. Embodies REST purity, fat models, thin controllers, Current attributes, Hotwire patterns, and the "clarity over cleverness" philosophy.

Its SKILL.md is about 1.4k tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `metadata.json`).

It sits in Development, covering Backend development and Refactoring. It works with Ruby and Basecamp. The repository describes itself as: An unappealing collection of Claude Skills and resources.

When your agent uses it

  • Writing Ruby code
  • Rails applications
  • Creating models
  • Ruby/Rails code generation

Example prompts

  • “clarity over cleverness”
  • “/dhh-ruby-style”

Requirements

  • Docker

Workflow steps

9 steps, taken from the first numbered list in SKILL.md.

  1. REST purity: 7 actions only; new controllers for variations
  2. Fat models: Authorization, broadcasting, business logic in models
  3. Thin controllers: 1-5 line actions; extract complexity
  4. Convention over configuration: Empty methods, implicit rendering
  5. Minimal abstractions: No service objects for simple cases
  6. Current attributes: Thread-local request context everywhere
  7. Hotwire-first: Model-level broadcasting, Turbo Streams, Stimulus
  8. Readable code: Semantic naming, small methods, no comments needed
  9. Pragmatic testing: System tests over unit tests, real integrations

What it can do on your machine

Read from SKILL.md and the folder at commit 1056d29. 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 ruby).

    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

Dhh Ruby Style loads about 1.4k tokens when it runs. Until then it costs about 118 tokens; SKILL.md has 282 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~118
When it runs · the whole SKILL.md, loaded when a task matches
~1.4k

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

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 282 words (~1,442 tokens).

“Write Ruby and Rails code following DHH's philosophy: clarity over cleverness, convention over configuration, developer happiness above all.”

— opening of SKILL.md by Microck, Custom licence
name
dhh-ruby-style

Read the full SKILL.md on GitHub

Files

SKILL.md and 1 other file in skills_all/dhh-ruby-style of Microck/ordinary-claude-skills.

  • SKILL.md
  • metadata.json

Open the folder on GitHubat commit 1056d29

Compare with similar skills

Dhh Ruby Style 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.

Dhh Ruby Style compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Dhh Ruby Style this skillMicrock/ordinary-claude-skills401—~1.4kAutomated safety check: PassCustom licence
Dhh Rails Styledavekilleen/Dex4931 repos~1.7kAutomated safety check: PassCustom licence
Rubyericrisco/rsc-harness156—~3.2kAutomated safety check: PassMIT
Antipattern Preventiondoorkeeper-gem/doorkeeper5.5k—~1.1kAutomated safety check: PassMIT
Rails Hotwirepproenca/dot-skills214—~2.3kAutomated safety check: PassMIT
Rails Testingpproenca/dot-skills214—~2.1kAutomated safety check: PassMIT

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Works with

Questions about Dhh Ruby Style

What does Dhh Ruby Style do?

Write Ruby and Rails code in DHH's distinctive 37signals style. Dhh Ruby Style is an agent skill from Microck/ordinary-claude-skills. Write Ruby and Rails code in DHH's distinctive 37signals style.

When should I use Dhh Ruby Style?

Dhh Ruby Style fits situations like: writing Ruby code; rails applications; creating models; ruby/Rails code generation.

How do I install Dhh Ruby Style in Claude Code?

Run `npx skills add Microck/ordinary-claude-skills --skill dhh-ruby-style -a claude-code`. Or copy the skill folder (skills_all/dhh-ruby-style in Microck/ordinary-claude-skills) into .claude/skills/dhh-ruby-style in your project. Claude Code loads it when a task matches its description.

How do I install Dhh Ruby Style in Codex?

Run `npx skills add Microck/ordinary-claude-skills --skill dhh-ruby-style -a codex`. Or copy the skill folder (skills_all/dhh-ruby-style in Microck/ordinary-claude-skills) into .agents/skills/dhh-ruby-style in your project. Codex loads it when a task matches its description.

Can I use Dhh Ruby Style 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 Microck/ordinary-claude-skills --skill dhh-ruby-style -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/dhh-ruby-style, .gemini/skills/dhh-ruby-style, .github/skills/dhh-ruby-style and .opencode/skills/dhh-ruby-style in your project.

What does Dhh Ruby Style need to run?

SKILL.md names no scripts, command-line tools or credentials: Dhh Ruby Style is instructions for the agent only. Our summary lists: Docker.

Does Dhh Ruby Style 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 Dhh Ruby Style 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 Dhh Ruby Style use?

Dhh Ruby Style has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Dhh Ruby Style use?

About 1.4k tokens (SKILL.md is roughly 5.8k 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 Dhh Ruby Style?

Skills that share tags, products or a category with Dhh Ruby Style: Dhh Rails Style (davekilleen/Dex, 493 stars), Ruby (ericrisco/rsc-harness, 156 stars), Antipattern Prevention (doorkeeper-gem/doorkeeper, 5.5k stars) and Rails Hotwire (pproenca/dot-skills, 214 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Dhh Ruby Style?

Microck (a GitHub user) maintains it in Microck/ordinary-claude-skills, which has 401 GitHub stars. The repository holds 97 skills in this directory. The repository was last updated on September 6, 2026.

Source: Microck/ordinary-claude-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.