Auto-activates when user mentions Cloudflare Workers, edge functions, or serverless deployment. Expert in Cloudflare Workers including deployment, KV storage, and Durable Objects.

Cloudflare Workers performance optimization with CPU, memory, caching, bundle size. Use for slow workers, high latency, cold starts, or encountering CPU limits, memory issues, timeout errors.

Comprehensive testing guide for Cloudflare Workers using Vitest and @cloudflare/vitest-pool-workers. Use for test setup, binding mocks (D1/KV/R2/DO), integration tests, or encountering test failures, mock errors, coverage issues.

cloudflare-workflows

Cloudflare Workflows for durable long-running execution. Use for multi-step workflows, retries, state persistence, or encountering NonRetryableError, execution failed errors.

Server-side tag management for third-party tools with edge execution, privacy controls, and near-zero performance impact

Cloudflare Zero Trust Access authentication for Workers. Use for JWT validation, service tokens, CORS, or encountering preflight blocking, cache race conditions, missing JWT headers.

Guide for building applications on Cloudflare's edge platform. Use when implementing serverless functions (Workers), edge databases (D1), storage (R2, KV), real-time apps (Durable Objects), AI features (Workers AI, AI Gateway), static sites (Pages), or any edge computing solutions.

Enforces project Cloudinary media conventions when working with image uploads, URL generation, transformations, social sharing images, and photo management components. This skill covers the complete media workflow including CloudinaryService operations, URL utilities, CldImage/CldUploadWidget components, path organization, type definitions, and Sentry integration.

Manages images and videos with Cloudinary including upload, transformation, and CDN delivery. Use when building media-rich applications requiring resize, crop, format conversion, and optimization.

CloudKit sync and sharing debugging specialist. Use when encountering CloudKit sync issues, schema problems, sharing bugs, or CKRecord errors.

You are the CloudKit data synchronization validator for Leavn's multi-device sync.

AWS CloudWatch monitoring for logs, metrics, alarms, and dashboards. Use when setting up monitoring, creating alarms, querying logs with Insights, configuring metric filters, building dashboards, or troubleshooting application issues.

Data structures and algorithms reference based on CLRS. Use this skill when implementing, discussing, or choosing data structures or algorithms. Auto-activates for algorithm selection, complexity analysis, and performance optimization. Comprehensive coverage of fundamental and advanced data structures with pseudocode examples.

Master Kubernetes cluster administration, from initial setup through production management. Learn cluster installation, scaling, upgrades, and HA strategies.

Dimensionality reduction and clustering for single-cell RNA-seq using Seurat (R) and Scanpy (Python). Use for running PCA, computing neighbors, clustering with Leiden/Louvain algorithms, generating UMAP/tSNE embeddings, and visualizing clusters. Use when performing dimensionality reduction and clustering on single-cell data.

CASS Memory System - procedural memory for AI coding agents. Three-layer cognitive architecture transforms scattered sessions into persistent, cross-agent learnings with confidence decay, anti-pattern learning, and scientific validation.

C-Media Electronics MPN encoding patterns, USB audio controller decoding, and handler guidance. Use when working with C-Media audio ICs or CMediaHandler.

Build Optimizely CMS components for Astro v5. Use when creating/modifying components, pages, experiences, or working with GraphQL fragments, opti-type.json, or opti-style.json files (project)

Generate standardized CNC setup sheets for MNMUK machine shop. Covers DMG MORI mills/lathes, CITIZEN Swiss, MITSUBISHI EDM, and Haas machines. USE WHEN user says 'setup sheet', 'create setup', 'job setup', 'machine setup', 'tooling list', 'fixture setup', or 'new job' for any CNC operation.

Configure CNF networking components including netkit BPF-programmable network devices, tcx (Traffic Control eXpress for kernel 6.6+), virtual interfaces, network namespaces, routing, and eBPF program attachment. Use when setting up network topology for eBPF-based CNFs or testing packet processing pipelines.

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End-to-end copy number variant detection workflow from BAM files. Covers CNVkit analysis for exome/targeted sequencing with visualization and annotation. Use when detecting copy number alterations from sequencing data.

Visualize copy number profiles, segments, and compare across samples. Create publication-quality plots of CNV data from CNVkit, GATK, or other callers. Use when creating genome-wide CNV plots, sample heatmaps, or chromosome-level visualizations.

You are an expert in co-packing (contract packaging/manufacturing) operations and supply chain management. Your goal is to help optimize co-packer selection, manage co-packer relationships, and ensure

Learn By Doing coaching methodology for guided development. Use when coaching a developer through any implementation phase.

Analyzes legacy COBOL programs and JCL jobs to assist with migration to modern Java applications. Extracts business logic, identifies dependencies, generates migration reports, and creates Java implementation strategies. Use when working with mainframe migration, COBOL analysis, legacy system modernization, JCL workflows, or when users mention COBOL to Java conversion, analyzing .cbl/.CBL/.cob files, working with copybooks, or planning Java service implementations from COBOL programs.

This skill provides guidance for translating COBOL programs to modern languages (Python, Java, etc.) while preserving exact behavior. It should be used when tasks involve COBOL-to-modern-language migration, legacy code translation, fixed-width file format handling, or ensuring byte-level compatibility between source and target implementations.

Enables Claude to create and manage documents with tables and automation in Coda via Playwright MCP

Create well-structured subagents for Claude Code with specialized expertise, proper tool configurations, and effective system prompts. Use when building custom subagents for code review, debugging, testing, data analysis, codebase research, or domain-specific workflows.

Assess uncommitted code changes against the existing codebase to ensure consistency with established patterns, architecture, components, and ways of working.

Analyze codebase for patterns, issues, and improvements. Enforces analysis standards while incorporating user-specific requirements.

Use when annotating code with structured metadata, tags, and markers for AI-assisted development workflows. Covers annotation formats, semantic tags, and integration with development tools.

Code annotation requirements for pikru. Use when writing or porting Rust functions from C code. All ported functions must have cref comments.

Analyze codebases for anti-patterns, code smells, and quality issues using ast-grep structural pattern matching. Use when reviewing code quality, identifying technical debt, or performing comprehensive code analysis across JavaScript, TypeScript, Python, Vue, React, or other supported languages.

Systematic techniques for reading and understanding unfamiliar legacy code without documentation

Review recently written code for best practices, architectural consistency, and correct system integration. Use for reviewing new endpoints, refactors, and UI components to ensure alignment with project standards and established patterns.

code-audit-vigil

Perform a comprehensive code audit and write findings to TODO.md.

Performs comprehensive codebase analysis covering architecture, code quality, security, performance, testing, and maintainability. Use when user wants to audit code quality, identify technical debt, find security issues, assess test coverage, or get a codebase health check.

Request approval before modifying files and verify changes are necessary

AI가 만든 모든 코드 변경사항을 reviews 폴더에 기록하고 간단한 HTML 뷰어로 웹 브라우저에서 실시간 확인할 수 있습니다. 매 수정마다 문서가 생성되고 Python 서버로 즉시 확인 가능합니다.

Refactor and clean up code following best practices for readability and maintainability

Enforce industry best practices for code comments based on principles from Robert C. Martin (Clean Code), Martin Fowler (Refactoring), and other software engineering experts.

Add high-quality comments that explain WHY code works, not just WHAT it does.

Automatically find relevant context from knowledge graph and code relationships

Brutally honest code reviewer. Truth over comfort.

Identifies, categorizes, and articulates code issues with brutal honesty and quantifiable specificity. Use when reviewing code, providing feedback, performing code audits, or when user needs direct assessment of code quality.

- [Purpose](#purpose)

Standardized, hypothesis-driven debug investigation workflow for unexpected behavior, regressions, incidents, flaky tests, or production issues. Use to plan instrumentation, reproduce with decisive signals, compare runs, and narrow root cause without assuming any vendor or infrastructure.