Ruby

Execute read-only Ruby/Rails commands against Gumroad's production database for debugging and investigation.

antiwork/gumroad

Reviews a fastlane pull request against its linked issue and the project guides, separating blocking from non-blocking findings and handling vulnerabilities privately.

fastlane/fastlane

Avoid common Ruby and Rails antipatterns that degrade maintainability and performance.

doorkeeper-gem/doorkeeper

Run mutant, read mutation reports, fix alive mutations, and verify coverage.

mbj/mutant

A skill your agent uses when adding, evaluating, or removing an entry in db/seeds/pegs/, when the user mentions a pegged or fixed currency, or when an issue suggests we should "pin" or "lock" a…

lineofflight/frankfurter

Reproduce a GitHub Actions Linux CI failure locally when it does not happen on your machine: a podman/docker image that mirrors the ubuntu-22.04 runner by reusing the real Tools/CI-linux-.sh install…

swig/swig

Smart dependency management for any language. An agent skill from Asvarox/allkaraoke.

Asvarox/allkaraoke

Ensure gems are safe, necessary, and properly constrained when adding, updating, or reviewing dependencies in Doorkeeper.

doorkeeper-gem/doorkeeper

A skill your agent uses when querying Wise for exchange rates (real-time or historical), validating Frankfurter rates against Wise mid-market, debugging rate discrepancies, or when the user mentions…

lineofflight/frankfurter

Create and revise animated character music videos from a supplied song and creative prompt, with researched storyboards, Fal character and video generation, p5 motion graphics, audio editing, and…

makevoid/motion-graphics-music-video-skill

A skill your agent uses when writing, reviewing, or modifying RBS type signatures (sig//.rbs, vendor/rbs//.rbs, or inline : annotations) or running Steep – e.g.

DataDog/dd-trace-rb

Addresses unresolved pull request review threads and suppressed (low-confidence) Copilot review comments on the current branch, folds each fix into…

ruby-git/ruby-git

Work with 90+ supported languages, compilers, CSS processors, and WASM-compiled languages for markup, style, and script editors.

live-codes/livecodes

Add or backfill RubyEvents conference data for an event from its website — involvements (organizers/MCs), sponsors, venue + hotels, schedule, talk running order, and speaker GitHub/Twitter handles.

rubyevents/rubyevents

Set up or audit Nate's standard dev environment in a project directory.

nateberkopec/dotfiles

A skill your agent uses when the user invokes /dg for an entertaining adversarial code review with Dinesh vs Gilfoyle banter from Silicon Valley

v1r3n/dinesh-gilfoyle

Check if recent cybersecurity alerts from 10 international CERTs affect your current project.

karimhabush/cyberowl

Assesses what an API change would break before it is made, finds every usage, documents the impact and plans a deprecation or migration path.

ruby-git/ruby-git

Develop, debug, and manage Temporal applications across Python, TypeScript, Go, Java, .NET, Ruby, and Rust.

temporalio/skill-temporal-developer

Guide for handling event data. An agent skill from rubyevents/rubyevents.

rubyevents/rubyevents

Check GitHub notifications for upstream dcastil/tailwind-merge pull requests and port merged ones into this Ruby gem (branch, translated code, tests, commit, PR).

gjtorikian/tailwind_merge

A skill your agent uses when a change in this repo needs a customer-facing changelog entry — e.g.

DataDog/dd-trace-rb

Measures test coverage and code quality in a repository with the supercov CLI, and turns what it finds into small, focused tests or fixes.

supercorp-ai/supercov

Port Ruby gems with native C extensions to Fil-C. An agent skill from mbrock/filnix.

mbrock/filnix

Explore the CPG of an analyzed codebase and suggest semantic concepts and operations to tag nodes with what they are and what they do.

Fraunhofer-AISEC/cpg

Updates the White Paper theme to the latest stable Ruby and Jekyll releases, resolves compatibility issues, verifies builds, maintains the changelog, and bumps the theme version.

vinitkumar/white-paper

Diagnoses and fixes failing GitHub Actions runs by identifying the failure, fetching only the relevant logs, finding the root cause and reproducing it locally.

ruby-git/ruby-git

Guides through the full gem release process — bump version, update CHANGELOG, tag, push to RubyGems, and create GitHub Release.

bibendi/schked

A skill your agent uses when benchmarking rubydex MCP against plain Grep/Glob for Ruby code tasks.

Shopify/rubydex

Conventions for creating and maintaining UI ViewComponents in the Ui:: namespace.

rubyevents/rubyevents

Comprehensive cybersecurity analysis for any local project. An agent skill from Hainrixz/cyber-neo.

Hainrixz/cyber-neo

Use the Gerillass Sass mixin library — loading it, the mixin catalogue, and the argument forms that are easy to get wrong.

selfishprimate/gerillass

Finishes or abandons a dual-boot Rails upgrade by removing NextRails branches and Gemfile.next scaffolding, keeping either the next or the current version.

ombulabs/claude-code_rails-upgrade-skill

A skill your agent uses whenever writing or reviewing a code comment anywhere in this repo (lib, ext, spec, sig, docs, CI config, etc.) – e.g.

DataDog/dd-trace-rb

Create a new placeable block for a Minecraft Bedrock Edition add-on from a plain description, or change an existing one, such as a decorative, glowing, ore, crate, slab, stairs, or light-source…

Mojang/minecraft-creator-tools

A skill your agent uses when writing or running tests in a Ruby project that uses minitest or test-unit.

st0012/ruby-skills

Scaffolds and reviews `Git::Commands::*` classes in the ruby-git library, with unit tests, integration tests and YARD docs, using the Base command architecture.

ruby-git/ruby-git

审计 Node.js、Python、Go、Rust、JVM、Ruby 项目的依赖漏洞、版本健康度与许可证事实；当用户要求检查 package.json、lockfile、requirements、go.mod、Cargo.toml、pom.xml、Gemfile.lock，或生成不改依赖的中文审计报告时使用

laolaoshiren/claude-code-skills-zh

Remediate a send/send call that reaches a private method, restoring a real public seam instead of bypassing visibility.

Shopify/rubydex

A skill your agent uses when the user provides a YouTube playlist link/ID or YouTube video links/IDs and wants those recordings added to an event videos.yml file.

rubyevents/rubyevents

Find any version of any Nix package across nixpkgs git history using the nxv CLI or HTTP API.

utensils/nxv

Create a new item for a Minecraft Bedrock Edition add-on from a plain description, or change an existing one, such as a weapon, tool, food, armor piece, throwable, or collectible, including its icon…

Mojang/minecraft-creator-tools

Run the Objeck CLBG benchmarks and the cross-language comparison in Docker, report median times and peak RSS, and flag regressions against docs/performance.md

objeck/objeck-lang

Measure Rigor's baseline drift across the tagged history of a real OSS Ruby project.

rigortype/rigor

Comprehensive tier assessment for an MCP SDK repository against SEP-1730.

modelcontextprotocol/conformance

Workflow for updating gem dependencies and fixing CVEs in the ruby-git project: assess with bundle outdated and audit, edit the gemspec, test, then commit with conventional messages.

ruby-git/ruby-git

Discovers Google Ads client libraries under clientlibs, verifies installed versions against GitHub latest releases, and automatically updates outdated codebases.

googleads/google-ads-api-developer-assistant

Scans a repository's source for security vulnerabilities with the supercov CLI, pointing to the line of each finding and mapping it to CWE classes.

supercorp-ai/supercov