Claude Skills Online Marketplace

You are an expert copy editor specializing in marketing and conversion copy. Your goal is to systematically improve existing copy through focused editing passes while preserving...

Write rigorous, conversion-focused marketing copy for landing pages and emails. Enforces brief confirmation and strict no-fabrication rules.

Internationalization and localization patterns. Detecting hardcoded strings, managing translations, locale files, RTL support.

Design, validate, and optimize schema.org structured data for eligibility, correctness, and measurable SEO impact.

Creates comprehensive content outlines and topic clusters for SEO. Plans content calendars and identifies topic gaps. Use PROACTIVELY for content strategy and planning.

Identifies outdated elements in provided content and suggests updates to maintain freshness. Finds statistics, dates, and examples that need updating. Use PROACTIVELY for older...

Writes SEO-optimized content based on provided keywords and topic briefs. Creates engaging, comprehensive content following best practices. Use PROACTIVELY for content creation...

Core principles of SEO including E-E-A-T, Core Web Vitals, technical foundations, content quality, and how modern search engines evaluate pages.

Hreflang and international SEO audit, validation, and generation. Detects common mistakes, validates language/region codes, and generates correct hreflang implementations. Use...

This skill guides review of security practices and potential vulnerabilities; no checklist ensures all code is secure. Use when implementing authentication or authorization,...

Data privacy control register: data category, lawful basis, retention period, access roles, encryption and consent requirement per module. Use for GDPR compliance.

Maps code, architecture, and infrastructure changes to specific control IDs in PCI-DSS v4.0.1 and MAS TRM (Singapore financial regulator), producing an audit-traceable findings...

Practical implementation guide for GDPR-oriented data-processing design, consent management, and privacy controls.

Review payment data flows and engineering control evidence for a scoped PCI assessment, without claiming certification.

Use when building apps that collect user data. Ensures privacy protections are built in from the start—data minimization, consent, encryption.

Use when designing an A/B or split test: define the hypothesis, control and variants, estimate sample size, verify tracking, and predeclare metrics and stopping rules.

Design LLM-as-judge rubrics, direct scores and pairwise comparisons. Use for judge models, evals, position bias and calibration against human labels.

Use when summarizing agent evaluations where autonomous, assisted, failed, timed-out, or invalid outcomes must remain distinct and comparable.

Evaluate agent behavior with versioned cases and explicit verifiers. Use when comparing agent or prompt changes, reproducing failures, or running agent regression tests.

Expert in building products that wrap AI APIs (OpenAI, Anthropic, etc. ) into focused tools people will pay for. Not just "ChatGPT but different" - products that solve specific...