x-cmd-skill

Plugin x-cmd-skill from marketplace cascade-code-general-misc-3 in joshuarweaver/cascade-code-general-misc-3. Commands read from the repo's manifest — 1 month ago.

Skills (200)

• api-design

  REST API design patterns including resource naming, status codes, pagination, filtering, error responses, versioning, and rate limiting for production APIs.

• article-writing

  Write articles, guides, blog posts, tutorials, newsletter issues, and other long-form content in a distinctive voice derived from supplied examples or brand guidance. Use when the user wants polished written content longer than a paragraph, especially when voice consistency, structure, and credibili

• autonomous-loops

  Patterns and architectures for autonomous Claude Code loops — from simple sequential pipelines to RFC-driven multi-agent DAG systems.

• backend-patterns

  Backend architecture patterns, API design, database optimization, and server-side best practices for Node.js, Express, and Next.js API routes.

• clickhouse-io

  ClickHouse database patterns, query optimization, analytics, and data engineering best practices for high-performance analytical workloads.

• coding-standards

  Universal coding standards, best practices, and patterns for TypeScript, JavaScript, React, and Node.js development.

• configure-ecc

  Interactive installer for Everything Claude Code — guides users through selecting and installing skills and rules to user-level or project-level directories, verifies paths, and optionally optimizes installed files.

• content-engine

  Create platform-native content systems for X, LinkedIn, TikTok, YouTube, newsletters, and repurposed multi-platform campaigns. Use when the user wants social posts, threads, scripts, content calendars, or one source asset adapted cleanly across platforms.

• content-hash-cache-pattern

  Cache expensive file processing results using SHA-256 content hashes — path-independent, auto-invalidating, with service layer separation.

• continuous-learning-v2

  Instinct-based learning system that observes sessions via hooks, creates atomic instincts with confidence scoring, and evolves them into skills/commands/agents. v2.1 adds project-scoped instincts to prevent cross-project contamination.

• continuous-learning

  Automatically extract reusable patterns from Claude Code sessions and save them as learned skills for future use.

• cost-aware-llm-pipeline

  Cost optimization patterns for LLM API usage — model routing by task complexity, budget tracking, retry logic, and prompt caching.

• cpp-coding-standards

  C++ coding standards based on the C++ Core Guidelines (isocpp.github.io). Use when writing, reviewing, or refactoring C++ code to enforce modern, safe, and idiomatic practices.

• cpp-testing

  Use only when writing/updating/fixing C++ tests, configuring GoogleTest/CTest, diagnosing failing or flaky tests, or adding coverage/sanitizers.

• database-migrations

  Database migration best practices for schema changes, data migrations, rollbacks, and zero-downtime deployments across PostgreSQL, MySQL, and common ORMs (Prisma, Drizzle, Django, TypeORM, golang-migrate).

• deployment-patterns

  Deployment workflows, CI/CD pipeline patterns, Docker containerization, health checks, rollback strategies, and production readiness checklists for web applications.

• django-patterns

  Django architecture patterns, REST API design with DRF, ORM best practices, caching, signals, middleware, and production-grade Django apps.

• django-security

  Django security best practices, authentication, authorization, CSRF protection, SQL injection prevention, XSS prevention, and secure deployment configurations.

• django-tdd

  Django testing strategies with pytest-django, TDD methodology, factory_boy, mocking, coverage, and testing Django REST Framework APIs.

• django-verification

  Verification loop for Django projects - migrations, linting, tests with coverage, security scans, and deployment readiness checks before release or PR.

• docker-patterns

  Docker and Docker Compose patterns for local development, container security, networking, volume strategies, and multi-service orchestration.

• e2e-testing

  Playwright E2E testing patterns, Page Object Model, configuration, CI/CD integration, artifact management, and flaky test strategies.

• eval-harness

  Formal evaluation framework for Claude Code sessions implementing eval-driven development (EDD) principles

• foundation-models-on-device

  Apple FoundationModels framework for on-device LLM — text generation, guided generation with @Generable, tool calling, and snapshot streaming in iOS 26+.

• frontend-patterns

  Frontend development patterns for React, Next.js, state management, performance optimization, and UI best practices.

• frontend-slides

  Create stunning, animation-rich HTML presentations from scratch or by converting PowerPoint files. Use when the user wants to build a presentation, convert a PPT/PPTX to web, or create slides for a talk/pitch. Helps non-designers discover their aesthetic through visual exploration rather than abstra

• golang-patterns

  Idiomatic Go patterns, best practices, and conventions for building robust, efficient, and maintainable Go applications.

• golang-testing

  Go testing patterns including table-driven tests, subtests, benchmarks, fuzzing, and test coverage. Follows TDD methodology with idiomatic Go practices.

• investor-materials

  Create and update pitch decks, one-pagers, investor memos, accelerator applications, financial models, and fundraising materials. Use when the user needs investor-facing documents, projections, use-of-funds tables, milestone plans, or materials that must stay internally consistent across multiple fu

• investor-outreach

  Draft cold emails, warm intro blurbs, follow-ups, update emails, and investor communications for fundraising. Use when the user wants outreach to angels, VCs, strategic investors, or accelerators and needs concise, personalized, investor-facing messaging.

• iterative-retrieval

  Pattern for progressively refining context retrieval to solve the subagent context problem

• jpa-patterns

  JPA/Hibernate patterns for entity design, relationships, query optimization, transactions, auditing, indexing, pagination, and pooling in Spring Boot.

• liquid-glass-design

  iOS 26 Liquid Glass design system — dynamic glass material with blur, reflection, and interactive morphing for SwiftUI, UIKit, and WidgetKit.

• market-research

  Conduct market research, competitive analysis, investor due diligence, and industry intelligence with source attribution and decision-oriented summaries. Use when the user wants market sizing, competitor comparisons, fund research, technology scans, or research that informs business decisions.

• nutrient-document-processing

  Process, convert, OCR, extract, redact, sign, and fill documents using the Nutrient DWS API. Works with PDFs, DOCX, XLSX, PPTX, HTML, and images.

• plankton-code-quality

  Write-time code quality enforcement using Plankton — auto-formatting, linting, and Claude-powered fixes on every file edit via hooks.

• postgres-patterns

  PostgreSQL database patterns for query optimization, schema design, indexing, and security. Based on Supabase best practices.

• project-guidelines-example

  Example project-specific skill template based on a real production application.

• python-patterns

  Pythonic idioms, PEP 8 standards, type hints, and best practices for building robust, efficient, and maintainable Python applications.

• python-testing

  Python testing strategies using pytest, TDD methodology, fixtures, mocking, parametrization, and coverage requirements.

• regex-vs-llm-structured-text

  Decision framework for choosing between regex and LLM when parsing structured text — start with regex, add LLM only for low-confidence edge cases.

• search-first

  Research-before-coding workflow. Search for existing tools, libraries, and patterns before writing custom code. Invokes the researcher agent.

• security-review

  Use this skill when adding authentication, handling user input, working with secrets, creating API endpoints, or implementing payment/sensitive features. Provides comprehensive security checklist and patterns.

• security-scan

  Scan your Claude Code configuration (.claude/ directory) for security vulnerabilities, misconfigurations, and injection risks using AgentShield. Checks CLAUDE.md, settings.json, MCP servers, hooks, and agent definitions.

• skill-stocktake

  Use when auditing Claude skills and commands for quality. Supports Quick Scan (changed skills only) and Full Stocktake modes with sequential subagent batch evaluation.

• springboot-patterns

  Spring Boot architecture patterns, REST API design, layered services, data access, caching, async processing, and logging. Use for Java Spring Boot backend work.

• springboot-security

  Spring Security best practices for authn/authz, validation, CSRF, secrets, headers, rate limiting, and dependency security in Java Spring Boot services.

• springboot-tdd

  Test-driven development for Spring Boot using JUnit 5, Mockito, MockMvc, Testcontainers, and JaCoCo. Use when adding features, fixing bugs, or refactoring.

• strategic-compact

  Suggests manual context compaction at logical intervals to preserve context through task phases rather than arbitrary auto-compaction.

• swift-actor-persistence

  Thread-safe data persistence in Swift using actors — in-memory cache with file-backed storage, eliminating data races by design.

• swift-concurrency-6-2

  Swift 6.2 Approachable Concurrency — single-threaded by default, @concurrent for explicit background offloading, isolated conformances for main actor types.

• swift-protocol-di-testing

  Protocol-based dependency injection for testable Swift code — mock file system, network, and external APIs using focused protocols and Swift Testing.

• swiftui-patterns

  SwiftUI architecture patterns, state management with @Observable, view composition, navigation, performance optimization, and modern iOS/macOS UI best practices.

• tdd-workflow

  Use this skill when writing new features, fixing bugs, or refactoring code. Enforces test-driven development with 80%+ coverage including unit, integration, and E2E tests.

• verification-loop

  A comprehensive verification system for Claude Code sessions.

• visa-doc-translate

  Translate visa application documents (images) to English and create a bilingual PDF with original and translation

• algorithmic-art

  Creating algorithmic art using p5.js with seeded randomness and interactive parameter exploration. Use this when users request creating art using code, generative art, algorithmic art, flow fields, or particle systems. Create original algorithmic art rather than copying existing artists' work to avo

• brand-guidelines

  Applies Anthropic's official brand colors and typography to any sort of artifact that may benefit from having Anthropic's look-and-feel. Use it when brand colors or style guidelines, visual formatting, or company design standards apply.

• canvas-design

  Create beautiful visual art in .png and .pdf documents using design philosophy. You should use this skill when the user asks to create a poster, piece of art, design, or other static piece. Create original visual designs, never copying existing artists' work to avoid copyright violations.

• doc-coauthoring

  Guide users through a structured workflow for co-authoring documentation. Use when user wants to write documentation, proposals, technical specs, decision docs, or similar structured content. This workflow helps users efficiently transfer context, refine content through iteration, and verify the doc

• frontend-design

  Create distinctive, production-grade frontend interfaces with high design quality. Use this skill when the user asks to build web components, pages, artifacts, posters, or applications (examples include websites, landing pages, dashboards, React components, HTML/CSS layouts, or when styling/beautify

• internal-comms

  A set of resources to help me write all kinds of internal communications, using the formats that my company likes to use. Claude should use this skill whenever asked to write some sort of internal communications (status reports, leadership updates, 3P updates, company newsletters, FAQs, incident rep

• mcp-builder

  Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate external APIs or services, whether in Python (FastMCP) or Node/TypeScript (MCP SDK).

• skill-creator

  Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a skill from scratch, edit, or optimize an existing skill, run evals to test a skill, benchmark skill performance with variance analysis, or optimize a skill's description for better t

• slack-gif-creator

  Knowledge and utilities for creating animated GIFs optimized for Slack. Provides constraints, validation tools, and animation concepts. Use when users request animated GIFs for Slack like "make me a GIF of X doing Y for Slack.

• theme-factory

  Toolkit for styling artifacts with a theme. These artifacts can be slides, docs, reportings, HTML landing pages, etc. There are 10 pre-set themes with colors/fonts that you can apply to any artifact that has been creating, or can generate a new theme on-the-fly.

• web-artifacts-builder

  Suite of tools for creating elaborate, multi-component claude.ai HTML artifacts using modern frontend web technologies (React, Tailwind CSS, shadcn/ui). Use for complex artifacts requiring state management, routing, or shadcn/ui components - not for simple single-file HTML/JSX artifacts.

• webapp-testing

  Toolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality, debugging UI behavior, capturing browser screenshots, and viewing browser logs.

• adaptyv

  Cloud laboratory platform for automated protein testing and validation. Use when designing proteins and needing experimental validation including binding assays, expression testing, thermostability measurements, enzyme activity assays, or protein sequence optimization. Also use for submitting experi

• aeon

  This skill should be used for time series machine learning tasks including classification, regression, clustering, forecasting, anomaly detection, segmentation, and similarity search. Use when working with temporal data, sequential patterns, or time-indexed observations requiring specialized algorit

• alphafold-database

  Access AlphaFold 200M+ AI-predicted protein structures. Retrieve structures by UniProt ID, download PDB/mmCIF files, analyze confidence metrics (pLDDT, PAE), for drug discovery and structural biology.

• anndata

  Data structure for annotated matrices in single-cell analysis. Use when working with .h5ad files or integrating with the scverse ecosystem. This is the data format skill—for analysis workflows use scanpy; for probabilistic models use scvi-tools; for population-scale queries use cellxgene-census.

• arboreto

  Infer gene regulatory networks (GRNs) from gene expression data using scalable algorithms (GRNBoost2, GENIE3). Use when analyzing transcriptomics data (bulk RNA-seq, single-cell RNA-seq) to identify transcription factor-target gene relationships and regulatory interactions. Supports distributed comp

• astropy

  Comprehensive Python library for astronomy and astrophysics. This skill should be used when working with astronomical data including celestial coordinates, physical units, FITS files, cosmological calculations, time systems, tables, world coordinate systems (WCS), and astronomical data analysis. Use

• benchling-integration

  Benchling R&D platform integration. Access registry (DNA, proteins), inventory, ELN entries, workflows via API, build Benchling Apps, query Data Warehouse, for lab data management automation.

• biopython

  Comprehensive molecular biology toolkit. Use for sequence manipulation, file parsing (FASTA/GenBank/PDB), phylogenetics, and programmatic NCBI/PubMed access (Bio.Entrez). Best for batch processing, custom bioinformatics pipelines, BLAST automation. For quick lookups use gget; for multi-service integ

• biorxiv-database

  Efficient database search tool for bioRxiv preprint server. Use this skill when searching for life sciences preprints by keywords, authors, date ranges, or categories, retrieving paper metadata, downloading PDFs, or conducting literature reviews.

• bioservices

  Unified Python interface to 40+ bioinformatics services. Use when querying multiple databases (UniProt, KEGG, ChEMBL, Reactome) in a single workflow with consistent API. Best for cross-database analysis, ID mapping across services. For quick single-database lookups use gget; for sequence/file manipu

• brenda-database

  Access BRENDA enzyme database via SOAP API. Retrieve kinetic parameters (Km, kcat), reaction equations, organism data, and substrate-specific enzyme information for biochemical research and metabolic pathway analysis.

• cellxgene-census

  Query the CELLxGENE Census (61M+ cells) programmatically. Use when you need expression data across tissues, diseases, or cell types from the largest curated single-cell atlas. Best for population-scale queries, reference atlas comparisons. For analyzing your own data use scanpy or scvi-tools.

• chembl-database
• cirq
• citation-management
• clinical-decision-support
• clinical-reports
• clinicaltrials-database
• clinpgx-database
• clinvar-database
• cobrapy
• cosmic-database
• dask
• datacommons-client
• datamol
• deepchem
• deeptools
• denario
• diffdock
• dnanexus-integration
• drugbank-database
• ena-database
• ensembl-database
• esm
• etetoolkit
• exploratory-data-analysis
• fda-database
• flowio
• fluidsim
• fred-economic-data
• gene-database
• generate-image
• geniml
• geo-database
• geopandas
• get-available-resources
• gget
• gtars
• gwas-database
• histolab
• hmdb-database
• hypogenic
• hypothesis-generation
• imaging-data-commons
• iso-13485-certification
• kegg-database
• labarchive-integration
• lamindb
• latchbio-integration
• latex-posters
• literature-review
• market-research-reports
• markitdown
• matchms
• matlab
• matplotlib
• medchem
• metabolomics-workbench-database
• modal
• molfeat
• networkx
• neurokit2
• neuropixels-analysis
• offer-k-dense-web
• omero-integration
• openalex-database
• opentargets-database
• opentrons-integration
• paper-2-web
• pathml
• pdb-database
• peer-review
• pennylane
• perplexity-search
• plotly
• polars
• pptx-posters
• protocolsio-integration
• pubchem-database
• pubmed-database
• pufferlib
• pydeseq2
• pydicom
• pyhealth
• pylabrobot
• pymatgen
• pymc
• pymoo
• pyopenms
• pysam
• pytdc
• pytorch-lightning
• qiskit
• qutip
• rdkit
• reactome-database
• research-grants
• research-lookup
• rowan
• scanpy
• scholar-evaluation
• scientific-brainstorming
• scientific-critical-thinking
• scientific-schematics
• scientific-slides
• scientific-visualization
• scientific-writing
• scikit-bio
• scikit-learn
• scikit-survival
• scvi-tools
• seaborn
• shap
• simpy
• stable-baselines3
• statistical-analysis
• statsmodels
• string-database
• sympy
• torch_geometric
• torchdrug
• transformers

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