Claude Code Skills · page 135

Perform systematic exploratory data analysis to understand dataset structure, distributions, relationships, and anomalies before modeling. Use when a dataset is new, its quality is unknown, or the user requests open-ended profiling; use data-analysis instead for a defined hypothesis or decision question.

Generate SQL queries from natural-language requirements using SELECT, JOIN, GROUP BY, window functions, CTEs, and subqueries. Use when the user needs a new query from a business question or schema; use query-optimization when an existing query or execution plan is slow.

Create, schedule, and verify database backups with support for full, incremental, and point-in-time recovery strategies. Use when the user requests database backup or provides relevant inputs for this workflow.

Create, execute, and roll back versioned database schema migrations using tools like Alembic, Prisma Migrate, Flyway, and Knex. Use when the user requests database migration or provides relevant inputs for this workflow.

Design normalized database schemas with tables, relationships, indexes, and constraints for any application domain. Use when the user requests database schema design or provides relevant inputs for this workflow.

Populate databases with realistic, reproducible test data for development, testing, and staging environments. Use when the user requests database seeding or provides relevant inputs for this workflow.

Diagnose and optimize existing slow SQL queries using execution plans, indexing strategies, query rewriting, and ORM tuning. Use when the user provides a query, performance symptom, or EXPLAIN plan; use sql-query-generation when creating a new query from requirements.

Audit web interfaces against WCAG 2.1 AA/AAA standards, identify violations, and produce actionable remediation reports with code fixes. Use when the user requests accessibility testing or provides relevant inputs for this workflow.

Design and build production-ready frontend interfaces with design systems, responsive layouts, accessible components, and dark mode support. Use when the user requests frontend design or provides relevant inputs for this workflow.

Design professional, scalable logos with complete brand identity deliverables including color palettes, typography, format variations, and usage guidelines. Use when the user requests logo design or provides relevant inputs for this workflow.

Visualize and map user flows with Mermaid diagrams, decision points, error states, and conversion metrics to optimize user journeys. Use when the user requests user flow mapping or provides relevant inputs for this workflow.

Create text-based wireframes at low, mid, and high fidelity with component inventories, interaction annotations, and responsive breakpoint specifications. Use when the user requests wireframing or provides relevant inputs for this workflow.

Set up a continuous integration and continuous delivery (CI/CD) pipeline for a software project, automating builds, tests, and deployments across environments. Use when the user requests ci cd or provides relevant inputs for this workflow.

Monitor cloud infrastructure and applications using metrics, logs, and traces to provide real-time observability into performance, health, and reliability. Use when the user requests cloud monitoring or provides relevant inputs for this workflow.

Set up and orchestrate multi-container Docker applications using docker-compose, including service configuration, networking, volumes, and environment management. Use when the user requests docker compose setup or provides relevant inputs for this workflow.

Define, deploy, and manage cloud infrastructure as code using tools like Terraform, Pulumi, CloudFormation, and CDK, ensuring consistency, repeatability, and version control. Use when the user requests infrastructure as code or provides relevant inputs for this workflow.

Deploy, manage, and scale applications on Kubernetes clusters using manifests, Helm charts, and autoscaling configurations. Use when the user requests kubernetes deployment or provides relevant inputs for this workflow.

Inspect, extract, OCR, create, merge, split, reorder, rotate, annotate, fill, redact, compress, secure, and verify PDF documents while preserving source files and visual fidelity. Use when working with one or more .pdf files; converting documents to or from PDF; extracting text, tables, images, metadata, forms, or page ranges; applying true redactions or signatures; diagnosing malformed, encrypted, scanned, or inaccessible PDFs; or validating that a PDF transformation preserved the intended content and layout.

Inspect, profile, clean, reconcile, analyze, visualize, and verify spreadsheet data while preserving formulas, formatting, types, and source files. Use when working with .xlsx, .xlsm, .xls, .ods, .csv, or .tsv files; answering questions from a workbook; auditing formulas or data quality; comparing sheets or versions; producing pivots, charts, forecasts, or summary workbooks; repairing malformed tables; or validating that spreadsheet edits and calculations are accurate.

Create and manage budgets with variance analysis and departmental allocation. Use when the user requests budget planning or provides relevant inputs for this workflow.

Classify expenses by category, department, and tax deductibility from transaction data. Use when the user requests expense categorization or provides relevant inputs for this workflow.

Build financial projections, P&L statements, DCF models, and valuation analyses from assumptions and historical data. Use when the user requests financial modeling or provides relevant inputs for this workflow.

Generate balance sheets, cash flow statements, P&L reports, and executive financial summaries. Use when the user requests financial report generation or provides relevant inputs for this workflow.

Extract, validate, and categorize invoice data against purchase orders and GL codes. Use when the user requests invoice processing or provides relevant inputs for this workflow.

Build evidence-oriented readiness checklists for frameworks such as SOC 2, HIPAA, PCI DSS, and GDPR, with gaps and remediation priorities. Use when the user needs an internal readiness assessment or control-mapping plan; do not use it to certify compliance or replace an auditor or counsel.

Analyze contracts for risks, obligations, key clauses, and generate structured risk reports with severity ratings. Use when the user requests contract review or provides relevant inputs for this workflow.

Build a preliminary, evidence-based EU AI Act readiness assessment across AI-system inventory, territorial scope, operator roles, prohibited-practice screening, risk classification, transparency, high-risk controls, general-purpose AI obligations, governance, and implementation milestones. Use when an organization needs to triage an AI use case, vendor, model, product, or portfolio for Regulation (EU) 2024/1689; prepare an AI inventory, gap register, implementation roadmap, or counsel briefing; assess provider, deployer, importer, distributor, product-manufacturer, authorised-representative, or GPAI-provider responsibilities; or re-check readiness after regulatory or product changes.

Analyze open-source license compatibility, obligations, and compliance risks across project dependencies. Use when the user requests license analysis or provides relevant inputs for this workflow.

Draft privacy-policy language and a review checklist tailored to a business model, data practices, and relevant jurisdictions. Use when the user requests a privacy policy or needs to map disclosures for GDPR, CCPA, or similar frameworks; do not use it to guarantee legal compliance.

Draft Terms of Service documents for web applications, SaaS platforms, and digital marketplaces. Use when the user requests terms of service generation or provides relevant inputs for this workflow.

Generate comprehensive marketing analytics reports by collecting KPIs, analyzing trends, and delivering actionable insights with attribution modeling and funnel analysis. Use when the user requests analytics reporting or provides relevant inputs for this workflow.

Develop and execute a content strategy that maps content to audience needs, funnel stages, and business goals through editorial planning and performance analysis. Use when the user requests content strategy or provides relevant inputs for this workflow.

Conduct comprehensive keyword research to identify high-value search terms, map search intent, and uncover content gaps for SEO and content marketing. Use when the user requests keyword research or provides relevant inputs for this workflow.

Optimize a webpage for search engines by analyzing on-page elements, improving technical performance, and implementing structured data for maximum visibility. Use when the user requests seo optimization or provides relevant inputs for this workflow.

Create, adapt, and schedule social media content across platforms with platform-specific formatting, engagement hooks, and strategic posting cadence. Use when the user requests social media posting or provides relevant inputs for this workflow.

Automatically organizes files in a directory into a clean structure based on configurable rules — by file type, date, project, or priority — with support for duplicate detection, naming conventions, and archival strategies. Use when the user requests file organization or provides relevant inputs for this workflow.

Schedules meetings with internal and external stakeholders by parsing natural language requests, resolving time zones, checking calendar availability, proposing optimal slots, and managing invitations and RSVPs. Use when the user requests meeting scheduler or provides relevant inputs for this workflow.

Publish short-form videos to TikTok, Instagram Reels, YouTube Shorts, X, and Facebook from AI agents through Taisly.

Generate a shields.io badge of your Claude Code carbon footprint for your READMEs

Generate shareable PNG report cards of your Claude Code carbon footprint

Post the development footprint of the current branch as a sticky PR comment

Display CO2 emissions report for Claude Code sessions

Update claude-carbon to the latest version and re-price history (CO2-only)

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Configure and build gz-sim from source using either CMake/Ninja directly or a colcon workspace. Trigger when the user asks to build, recompile, configure, or set up the gz-sim binary tree.

Scaffold a new Nav 2 plugin (controller, planner, behavior, smoother, goal-checker, progress-checker, costmap layer, or BT node). Wires pluginlib registration, parameter declaration on the lifecycle node, and a minimal integration test. Trigger when the user asks to write or extend a Nav 2 plugin.

Author a new skill under .claude/skills/<name>/SKILL.md with valid frontmatter, following the template conventions, and index it in CLAUDE.md + README.md.

Scaffold a Behavior Tree leaf node — plain BehaviorTree.CPP (SyncActionNode / StatefulActionNode / ConditionNode) or a BehaviorTree.ROS2 wrapper (RosActionNode / RosServiceNode / RosTopicPubNode / RosTopicSubNode) — with ports, factory/plugin registration, and XML v4 usage. Trigger when the user asks to write a behavior-tree node (not Nav 2-specific).

Author a new asset for this .claude/ template — a rule, skill, slash command, or sub-agent — following the project's conventions and wiring it into the CLAUDE.md / README.md indexes. Trigger when the user wants to add or extend a command, skill, agent, or rule (make the template itself extensible).

Concise reference for the gz-sim Entity-Component-System architecture — how Entities, Components, Systems, the ECM, the Server, and SimulationRunner fit together. Trigger when the user asks how gz-sim is organized, where to add code, or how the simulation loop runs.

Scaffold a new ECS component header under include/gz/sim/components/, wire its CMake listing, and (if needed) register it with ComponentFactory for serialization. Trigger when the user asks to add a new component or a per-entity data field.

Scaffold a new gz-sim system plugin under src/systems/<name>/ — header, source, CMake glue, plugin registration, and an integration test stub. Trigger when the user asks to create a new system, controller, or plugin that hooks into the simulation loop.

Scaffold a new ROS 2 package (ament_python or ament_cmake) inside a colcon workspace, restructured to follow this template's Clean Architecture layout. Trigger when the user asks to create a new ROS 2 package or to bootstrap a Clean-Architecture-compliant codebase.

Bootstrap a complete ROS 2 colcon workspace from scratch — directory layout, .gitignore, top-level README, this .claude/ config, an interfaces package and a first Clean Architecture package, and a bringup package. Trigger when the user asks to create a new workspace / start a new ROS 2 project from zero.

ROS2 bag recording and analysis utilities with Clean Architecture (Python & C++)

Scaffold a ros2_control hardware component (SystemInterface / ActuatorInterface / SensorInterface) and its bringup — the plugin (on_init/on_configure/on_activate, RT-safe read()/write()), URDF <ros2_control> wiring, controllers.yaml + launch, pluginlib export. Trigger when the user asks to integrate hardware or bring up a robot under ros2_control.

Scaffold or extend a ros2_control controller or broadcaster (ControllerInterface / ChainableControllerInterface) — base-class choice, command/state interface configuration, lifecycle, real-time-safe update(), generate_parameter_library, pluginlib export, tests. Trigger when the user asks to write a ros2_control controller or broadcaster.

ROS2 Diagnostics and Health Monitoring with Clean Architecture (Python & C++)

Clean Architecture compatible ROS2 launch files and parameter management (Python)

ROS2 Managed (Lifecycle) Node implementation with Clean Architecture (Python & C++)

ROS2 messaging patterns and best practices with Clean Architecture (Python & C++)

Guide for creating ROS2 nodes following Clean Architecture principles (Python & C++)

ROS2 Service and Action implementation with Clean Architecture (Python & C++)

ROS2 test strategies and patterns with Clean Architecture (Python & C++)

ROS2 TF2 and Transform management with Clean Architecture (Python & C++)

Bridge a VDA 5050 v3.0.0 fleet-control interface (MQTT/JSON) onto Nav 2 under Clean Architecture — domain entities, MQTT/Nav 2 adapters behind ports, order→NavigateThroughPoses mapping, state aggregation, action handlers. Trigger when the user asks to build or extend a VDA 5050 connector / fleet bridge.

Create personalized triathlon, marathon, and ultra-endurance training plans. Use when athletes ask for training plans, workout schedules, race preparation, or coaching advice. Can sync with Strava to analyze training history, or work from manually provided fitness data. Generates periodized plans with sport-specific workouts, zones, and race-day strategies.

Deprecated alias — use `/woz benchmark`.

Deprecated alias — use `/woz login`.

Deprecated alias — use `/woz logout`.

Search past Claude Code sessions to recall commands, solutions, and context from prior conversations. TRIGGER on 'remember when', 'last time', 'we did this before', 'how did we', or /woz-recall.

Show the WOZCODE savings report — calls saved, time saved, tokens saved, and lifetime totals.

Deprecated alias — use `/woz status`.

Deprecated alias — use `/woz update`.

Deprecated alias — use `/woz-feedback` (bug reports).

Send feedback or a bug report to the WOZCODE team. Bug reports are tagged for triage and auto-attach session context (session id, anonymous id, OS, arch, Node version).

Deprecated alias — use `/woz settings`.

Deprecated alias — use `/woz share`.

The WOZCODE knowledge base behind the /woz review reviewer. Subcommands — `tune` (end-to-end reviewer tuning), `backtest` (tuning building blocks), `architecture-doc-fetch` (fetch woz/architecture.md from the KB), `cross-repo` (cross-repo planning brief), and knowledge-base ops (`status`, `query`, `note`, `suppress`, `boost`, `ingest`, `refresh`, `ops`).

Deprecated alias — use `/woz-kb <op>` (e.g. `/woz-kb status`).

Deprecated alias — use `/woz review`.

Meihua Yishu (梅花易數) Plum Blossom I Ching divination skill. Use when users request divination, fortune telling, hexagram casting, or character analysis (測字). Triggers on: 占卜, 算卦, 問卦, 起卦, 解卦, 測字, 拆字, meihua, plum blossom, I Ching divination, 梅花易數.

WOZCODE utilities. Subcommands — login, logout, status, settings, update, share, review (deep multi-persona code review), benchmark (WOZCODE vs vanilla comparison). Invoke as `/woz <subcommand>`, e.g. `/woz login` or `/woz review`.

Find academic papers across 5 sources (OpenAlex / Semantic Scholar / CrossRef / PubMed / arXiv) with adjustable depth — Quick scan (5 min) to Audit prep (3 hr). Use when the user wants to find papers, run a literature search, gather references, or scope a research topic. Triggers on: search verbs ('find papers', 'literature search', 'papers about X'), review types ('scoping review', 'systematic review', 'SR prep', 'literature review', 'lit review', 'help me write a lit review'), Chinese ('找文献', '找论文', '论文搜索', '学术检索', '文献检索', '文献综述', '综述前期', '求文献'). Outputs Shadcn HTML report + BibTeX/RIS/CSV + PRISMA-S log. Do NOT use for: concept explanations ('what is X' / 'X 是什么'), writing requests ('help me write a paragraph' / '帮我写'), single-paper interpretation or PDF download with full bibliographic metadata (use paper-downloader-portable), or when the user already has a literature set ready (use literature-set-review).

Validates, parses, and sanitizes AI-generated outputs before they reach end users or downstream systems. Structured output enforcement, schema validation, and fallback handling.

Design stable, versioned, self-documenting APIs. Easy to use correctly, hard to use incorrectly. Apply Hyrum's Law from day one.

Automated quality gates from commit to production. Every merge to main is potentially shippable. No manual steps in the deployment path.

Get layered, context-aware explanations of unfamiliar code. Understand what it does, why it was written that way, and how to work with it safely.

Structured code review focusing on correctness, security, and maintainability. Correctness before style. Every reviewer comment must be actionable.

Load minimum necessary context into agent context windows. Prevents token bloat, reduces cost, and improves focus. Only load what the current task needs.

Systematic root cause analysis for production and development bugs. Hypothesis-driven debugging — never guess-and-check.