majesticlabs-dev/majestic-marketplace

Use when creating or refactoring Action Mailer emails. Applies Rails 7.1+ conventions, parameterized mailers, preview workflows, background delivery, and email design best practices.

Use proactively for authorization with ActionPolicy. Creates policies, scopes, and integrates with GraphQL/ActionCable. Preferred over Pundit for composable, cacheable authorization.

Use when creating or refactoring Active Job background jobs. Applies Rails 8 conventions, Solid Queue patterns, error handling, retry strategies, and job design best practices.

Guide for coordinating multiple Claude Code instances as a team using Agent Teams. Covers TeammateTool operations, spawn backends, communication, task coordination, hooks, and orchestration patterns. Use when building multi-agent workflows requiring inter-agent communication.

This skill guides writing Ansible playbooks for server configuration. Use when hardening servers, installing packages, or automating post-provisioning tasks that cloud-init cannot handle.

Use when implementing real-time features requiring reliability, especially LLM streaming. Applies AnyCable patterns for message delivery guarantees, presence tracking, and Action Cable migration.

Codify brand writing style into a reusable voice guide. Extracts patterns from existing content and generates a style document with tone rules, vocabulary, and do/don't examples.

Analyze competitors, identify positioning weaknesses, and craft sharp differentiators with taglines and tweet-length pitches. Use when entering competitive markets or refining product positioning.

Generate a complete 30-day content calendar with viral content ideas, format variety, hooks, and CTAs tailored to your niche and platform. Includes content pillars, weekly themes, and batch creation workflow.

Create expansion roadmaps, QBR templates, and upsell playbooks to grow existing customer revenue through strategic account development.

Generate data profiles with column stats, correlations, and missing patterns for DataFrames. Use for EDA and data discovery.

Build Django applications with models, views, forms, templates, REST APIs, and modern Django 5.x patterns.

Use when reviewing brainstorms, plans, or PRDs for clarity and readiness before next workflow phase. Assesses documents for vagueness, gaps, and YAGNI violations.

Review legal documents as an experienced attorney. Analyzes contracts, ToS, privacy policies, NDAs, and corporate docs section-by-section. Identifies risks, gaps, and unfavorable terms with specific replacement text for problematic clauses.

Build FastAPI applications with async patterns, Pydantic validation, dependency injection, and modern Python API practices.

Build a complete business tech stack with 100% free tools. Find proven zero-cost alternatives, automation workflows, and workarounds for free plan limitations.

Build production-quality Ruby gems. Use when creating new gems, structuring gem architecture, implementing configuration patterns, setting up testing, or preparing for publishing. Covers all gem types - libraries, CLI tools, Rails engines, and API clients.

Build Google Ads campaign structures with keyword research, ad copy, audience targeting, and budget allocation. Use for B2B or B2C paid search planning.

Build go-to-market strategy with channel selection, motion matching, and capacity planning for sales teams.

This skill guides provisioning Hetzner Cloud infrastructure with OpenTofu/Terraform. Use when creating servers, networks, firewalls, load balancers, or volumes on Hetzner Cloud.

Use when implementing Hotwire features with Turbo Drive, Turbo Frames, and Turbo Streams. Applies Rails 8 conventions, morphing, broadcasts, lazy loading, and real-time update patterns.

Systematically discover and define your Ideal Customer Profile with firmographic criteria, buyer personas, scoring matrices, anti-ICP signals, and validation methodology.

Research markets, competitors, and audiences using web data and structured synthesis. Use when entering new markets, validating ideas, or analyzing competitive landscapes.

Write Minitest tests for Ruby and Rails applications. Use when creating test files, writing test cases, or testing new features. Not for RSpec — use rspec-coder instead. Covers both traditional and spec styles, fixtures, mocking, and Rails integration testing patterns.

Patterns for designing multi-agent systems with Claude Code - job description method, shared folder communication, handbook consolidation, context management. Use when building complex agent orchestrations.

YC growth framework - identify One Metric That Matters, commit to 7% weekly growth, install public accountability. Focus-forcing system for early-stage startups.

This skill guides writing Infrastructure as Code using OpenTofu (open-source Terraform fork). Use when creating .tf files, managing cloud infrastructure, configuring providers, or designing reusable modules.

Pipeline health assessment with coverage ratios, conversion benchmarks, velocity analysis, and problem diagnosis frameworks.

Write pytest tests with fixtures, parametrization, mocking, async testing, and modern patterns. Use when creating or updating Python test files. Not for unittest — use standard library patterns instead.

Debug Python errors, exceptions, and unexpected behavior. Analyzes tracebacks, reproduces issues, identifies root causes, and provides fixes.

Use proactively when encountering Rails errors, test failures, build issues, or unexpected behavior. Analyzes errors, reproduces issues, and identifies root causes.

Use proactively when refactoring Ruby on Rails code. Applies Rails conventions, Sandi Metz rules, and idiomatic Ruby patterns while maintaining test coverage.

Testing patterns for Vitest, React Testing Library, and Jest. Routes to component, hook, and integration test examples.

Design customer retention systems with health scoring, churn prediction, and proactive engagement workflows. Use when reducing churn or maximizing LTV.

Write RSpec tests for Ruby and Rails applications. Use when creating spec files, writing test cases, or testing new features. Not for Minitest — use minitest-coder instead. Covers RSpec syntax, describe/context organization, subject/let patterns, fixtures, mocking with allow/expect, and shoulda matchers.

Build sales messaging frameworks with value propositions, persona-specific talk tracks, and objection handling matrices.

Sales metrics frameworks with leading/lagging indicators, benchmarks, and capacity models.

Create sales playbooks with discovery frameworks, objection handling, competitive positioning, demo scripts, and closing techniques. Use when building or updating B2B sales enablement materials.

Run SEO and GEO audits on URLs covering technical SEO, content quality, E-E-A-T signals, and AI citation readiness. Use when evaluating search performance or diagnosing ranking issues.

Validate skills against agentskills.io specification. Use when adding new skills to the marketplace, reviewing skill PRs, checking skill compliance, or running quality gates on skills. Validates frontmatter fields (name, description, license, compatibility, metadata, allowed-tools), directory naming, line limits, and structure.

Skill file structure, naming conventions, directory layout, frontmatter requirements, and invocation control. Use when creating skill files or slash commands to ensure correct format and validation.

Use when configuring or working with Solid Cache for database-backed caching. Applies Rails 8 conventions, cache key design, expiration strategies, database setup, and performance tuning patterns.

Use when configuring or working with Solid Queue for background jobs. Applies Rails 8 conventions, database-backed job processing, concurrency settings, recurring jobs, and production deployment patterns.

Use when orchestrating multi-step workflows with Claude Code's native Task system (TaskCreate, TaskUpdate, TaskGet, TaskList) - lifecycle management, parallel execution, crash recovery, and progress visibility. Not for simple single-step tasks.

Refine value propositions from emotional, logical, and status angles, then synthesize into a sharp 15-word statement. Use when messaging feels generic or weak.

Design win-back campaigns to re-engage dormant customers and recover churned users with targeted messaging, special offers, and feedback collection to understand and address churn reasons.