Data & AI

This skill should be used when the user asks about "workflow XML", "planner", "agent dependencies", "workflow parsing", "task orchestration", or needs to understand the workflow system in XSky.

Creates, updates, and maintains CHANGELOG.md files following Common Changelog and Keep a Changelog standards. Use when creating changelogs, adding release entries, updating unreleased sections, validating changelog format, or user mentions 'changelog', 'release notes', 'version history', 'add to changelog', 'update changelog', 'create changelog', 'change log format', or needs to document version changes.

Comprehensive system design skill for creating professional software architecture specifications. Use this skill when asked to design systems (e.g., "Design a chat application", "Design an e-commerce platform", "Create system architecture for X"). Generates complete technical specifications with architecture diagrams, database schemas, API designs, scalability plans, security considerations, and deployment strategies. Creates organized spec folders with all documentation following professional software engineering standards, from high-level overview down to detailed implementation specifications.

Supervised fine-tuning using SFTTrainer, instruction formatting, and multi-turn dataset preparation with triggers like sft, instruction tuning, chat templates, sharegpt, alpaca, conversation_extension, and SFTTrainer.

Generate enterprise-grade web applications using Backstage Design System. Create admin dashboards, developer tools, and internal applications with modern React components, dark/light themes, and responsive design patterns based on Radix UI and Tailwind CSS.

Extracts and analyzes competitor ads from ad libraries (Facebook, LinkedIn, TikTok, Google). Use when researching competitor messaging, creative patterns, campaign strategies, or ad inspiration. Ch...

Use when reviewing code for Architecture Decision Record (ADR) compliance during refactoring or code review - checks code against all project ADRs and reports violations with specific fixes

Use when writing HTML/JSX with Tailwind CSS for common UI patterns like heroes, forms, lists, navbars, modals, cards, or any standard web component

Market data retrieval with OpenAlgo - real-time quotes, historical OHLCV, market depth, option chains, WebSocket streaming, and symbol search

Implement RxJS patterns for reactive programming in Angular. Use this skill when working with Observables, operators, subscriptions, async data flows, and error handling. Covers common patterns like combineLatest, switchMap, debounceTime, catchError, retry logic, and integration with Angular Signals using toSignal() and toObservable(). Ensures proper subscription cleanup with takeUntilDestroyed().

Workflow for parent agents completing child tasks including pulling changes, merging branches, deleting worker branches, and marking tasks complete

Data visualization with OpenAlgo - candlestick charts, options payoff diagrams, P&L dashboards, and real-time Streamlit dashboards

Create or update Claude Code skills. Use when: user wants to create a skill, add a new skill, update skill, or mentions SKILL.md. Includes Skill Chaining documentation.

Execute systematic feature development using EPIC methodology (Explore, Research, Plan, Validate, Implement, Review, Iterate). Use when building features, implementing complex tasks, or following structured development workflows. Delegates exploration, research, planning, validation, and review to specialized agents.

Write and maintain self-contained ExecPlans (execution plans) that a novice can follow end-to-end; use when planning or implementing non-trivial repo changes.

Enterprise Neon Serverless PostgreSQL Platform with AI-powered database architecture, Context7 integration, and intelligent branching orchestration for scalable modern applications

Reference for configuring tool permissions when launching Claude Code agents. Use when setting up --allowedTools flags, restricting file access, or configuring agent permissions.

Use when errors occur deep in execution and you need to trace back to find the original trigger - systematically traces bugs backward through call stack, adding instrumentation when needed, to identify source of invalid data or incorrect behavior

Creates README.md navigation maps for agent consumption. README IS the map - no human READMEs exist. Use when mapping directories, creating navigation structures, or preparing codebases for agentic workflows.

Schedule a delayed or interval-based action with minimal heartbeats. Use to wait before running a check (e.g., GH Actions, PR status, CI pipeline) or to poll on a bounded interval. Trigger on: "wait", "delay", "poll", "check later", "retry after", "schedule check".