Design

AI agent that analyzes operational signals (metrics, logs, traces, alerts, SLO/SLI reports) from observability platforms (Prometheus, Datadog, New Relic, CloudWatch, Grafana, Elastic) and produces practical, risk-aware triage and recommendations. Use when reviewing system health, investigating performance issues, analyzing monitoring data, evaluating service reliability, or providing SRE analysis of operational metrics. Distinguishes between critical issues requiring action, items needing investigation, and informational observations requiring no action.

TestFlight and App Store distribution guide. Use when preparing app for TestFlight, creating production builds, or submitting to App Store Connect.

Rapid task execution without hesitation or deterrence. Expert in overcoming blockers, making quick decisions, and maintaining forward momentum. Use for urgent tasks, breaking through impediments, decisive action. Activates on 'swift', 'execute quickly', 'undeterred', 'overcome blocker', 'just do it'. NOT for strategic planning, careful analysis, or research tasks.

Automatically designs, initializes, implements, validates, and packages new skills from a single high-level request. Use when the user gives a short, possibly vague description like "社内Redshift向けのSQLヘルパースキル作って" and wants a complete, production-ready .skill file generated with minimal manual intervention.

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 (weekly sprint reports, finance reports, project updates, design news, etc.).

Maintain or change the devcontainer environment for this repo. Use when editing .devcontainer files, changing toolchains, or requesting environment rebuilds.

Use when designing system architecture, creating design documents, planning technical architecture, or making high-level design decisions. Apply when user mentions system design, architecture, technical design, design docs, or asks to architect a solution. Use proactively when a feature requires architectural planning before implementation.

4-layer knowledge capture system for development sessions. Use when user says /mem (quick capture), /distill (extract patterns), /td (post-task retrospective with Before/After context), or /improve (work on pending items). Manages docs/learnings/, docs/knowledge-base/, and docs/retrospective/ directories.

Guidelines for writing effective tests in this project

Guides creation of new MCP tool packages in @j0kz/mcp-agents monorepo following modular architecture with constants/, helpers/, utils/ extraction, tools.json registration, and version.json synchron...

Create design documents for Stapledons Voyage game features. Use when user asks to create a design doc, plan a feature, or document game mechanics. Handles both planned/ and implemented/ docs.

This skill should be used when the user asks to "create a skill", "add a new skill", "write a skill", "make a skill", "build a skill for Claude", or mentions creating Claude Code skills, skill development, or SKILL.md files. Provides guidance for creating well-structured Claude Code skills with proper triggers and progressive disclosure.

Generate slide deck presentations from prompts. Triggers on "create presentation", "generate slides", "build deck", "presentation about"

Professional CV and resume builder transforming career narratives into ATS-optimized, multi-format resumes. Integrates with career-biographer for data and competitive-cartographer for positioning. Generates PDF, DOCX, LaTeX, JSON Resume, HTML, and Markdown. Activate on 'resume', 'CV', 'ATS optimization', 'job application'. NOT for cover letters, portfolio websites (use web-design-expert), LinkedIn optimization, or interview preparation.

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.

Master backend development, API design, server architecture, database integration, authentication, microservices, and production patterns. Includes Node.js, GraphQL, Spring Boot, ASP.NET Core, and PHP frameworks.

Content schema design and MDX configuration patterns for knowledge bases. Use when designing content structure, configuring MDX processing, or setting up frontmatter schemas.

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.

Create new workflow nodes for the Workscript engine or refactor existing nodes. Generate complete, production-ready node implementations following the single-edge return pattern. Use when creating new nodes, developing custom integrations, building data manipulation nodes, refactoring existing nodes, or implementing workflow capabilities.

Check if requested changes are within current feature scope. Use when user requests new functionality or changes during implementation that might be scope creep. Compares requests against feature requirements and suggests adding out-of-scope items to backlog.