Browse skills

Expert guidance for Ibis, the Python dataframe library that provides a pandas-like API but generates SQL for execution on any backend — DuckDB, PostgreSQL, BigQuery, Snowflake, Spark, and more. Helps developers write analytics code once and run it anywhere without rewriting SQL for each database.

You are an expert in ImageMagick, the powerful command-line tool for creating, editing, compositing, and converting images. You help developers automate image processing pipelines using ImageMagick's `convert`, `mogrify`, `composite`, and `identify` commands — batch resizing, format conversion, watermarking, thumbnail generation, PDF manipulation, and complex image compositing for web applications, print production, and data visualization.

Manage application secrets and environment variables with Infisical — open-source secrets management platform. Use when someone asks to "manage secrets", "Infisical", "centralize environment variables", "secrets manager", "replace .env files", "rotate API keys", or "sync secrets to CI/CD". Covers secret storage, team sharing, auto-rotation, CI/CD injection, and Kubernetes integration.

You are an expert in Instructor, the library for getting structured, validated output from LLMs. You help developers extract typed data from unstructured text using Pydantic models (Python) or Zod schemas (TypeScript), with automatic retries on validation failures, streaming partial objects, and support for OpenAI, Anthropic, Google, and local models — turning LLMs into reliable data extraction engines.

Expert guidance for Ionic, the open-source framework for building cross-platform mobile, desktop, and progressive web apps using web technologies (HTML, CSS, JavaScript/TypeScript). Helps developers build apps with Ionic's UI components, integrate with native device APIs via Capacitor, and deploy to iOS, Android, and web from a single codebase.

Builds and manages Jenkins CI/CD pipelines. Use when the user wants to write Jenkinsfiles, configure declarative or scripted pipelines, set up multibranch pipelines, manage Jenkins agents and nodes, configure shared libraries, integrate with Docker/Kubernetes/cloud providers, set up webhooks and triggers, manage credentials and secrets, or troubleshoot build failures. Trigger words: jenkins, jenkinsfile, jenkins pipeline, jenkins agent, jenkins node, jenkins shared library, jenkins docker, jenkins kubernetes, multibranch pipeline, jenkins credentials, jenkins webhook, jenkins groovy, jenkins blue ocean, jenkins job dsl.

Manage projects, issues, and workflows with Jira Cloud. Use when a user asks to set up Jira projects, create and manage issues, configure workflows, build Jira integrations, automate issue transitions, set up boards (Scrum/Kanban), manage sprints, use Jira REST API v3, create webhooks, build custom JQL queries, configure permissions and schemes, set up automation rules, or integrate Jira with CI/CD pipelines. Covers project administration, issue tracking, agile boards, API automation, and Atlassian Connect/Forge apps.

Optimize and transform images with imgix. Use when serving responsive images, implementing image CDN, adding real-time transformations, or optimizing Core Web Vitals with image delivery.

Build interactive CLI prompts with Inquirer.js. Use when creating interactive terminal UIs, multi-step wizards, form-like CLI inputs, or configuration generators with user input.

Configure Linux firewall with iptables/nftables. Use when a user asks to set up a firewall, block ports, allow specific traffic, configure NAT, or secure a Linux server network.

Istio service mesh for Kubernetes traffic management, security, and observability. Use when the user needs to configure traffic routing, mTLS, circuit breaking, fault injection, or observability for microservices.

Build and manage monorepos with Nx. Use when a user asks to set up a monorepo, manage multiple packages/apps, cache builds, run affected tests, or migrate from Lerna.

Build job queues and background worker systems using BullMQ, Celery, or Sidekiq. Use when you need to offload slow tasks from request handlers — email sending, PDF generation, image processing, data exports, or any work that takes more than a few hundred milliseconds. Covers job priorities, concurrency control, scheduled jobs, progress tracking, and graceful shutdown. Trigger words: background job, worker, queue, async task, BullMQ, Celery, cron job, scheduled task, job retry.

Assists with interactive data analysis, visualization, and reproducible research using Jupyter notebooks. Use when building notebooks that combine code with rich output, managing kernels, converting to reports, or parameterizing notebooks for batch execution. Trigger words: jupyter, notebook, jupyterlab, ipynb, nbconvert, papermill.

When the user needs to generate, validate, refresh, or debug JSON Web Tokens. Use when the user mentions "JWT," "access token," "refresh token," "token rotation," "token expiration," "token validation," "bearer token," or "decode JWT." Handles secure token lifecycle including signing, verification, refresh rotation, and revocation. For full auth system design, see auth-system-setup.

Analyzes Kubernetes cluster resource allocation versus actual usage to find waste and generate right-sizing recommendations. Use when someone asks about Kubernetes costs, overprovisioned pods, resource requests/limits tuning, cluster efficiency, or cloud bill reduction for K8s workloads. Trigger words: k8s costs, pod resources, right-size, overprovisioned, resource waste, cluster optimization, CPU/memory requests.

Build event-driven systems with Apache Kafka. Use when a user asks to set up message streaming, implement event sourcing, build pub/sub systems, process real-time data streams, or connect microservices with async messaging.

Deploy web applications to any server with Kamal — zero-downtime Docker deployments without Kubernetes. Use when someone asks to "deploy to a VPS", "deploy without Kubernetes", "Kamal deploy", "simple Docker deployment", "deploy Rails/Node/Python to a server", "zero-downtime deployment to bare metal", or "replace Heroku with a VPS". Covers Docker-based deployment, zero downtime with Traefik, multi-server, secrets, and accessory services.

Expert guidance for KeystoneJS, the open-source headless CMS and application platform built on Node.js, GraphQL, and Prisma. Helps developers define content schemas, build admin interfaces, implement access control, and create custom GraphQL APIs for content-driven applications.

You are an expert in Knex.js, the flexible SQL query builder for Node.js that supports PostgreSQL, MySQL, SQLite, and MSSQL. You help developers write type-safe queries with a chainable API, manage database migrations and seeds, build complex joins and subqueries, and use transactions — providing direct SQL control without the overhead of a full ORM.