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Interactive visualization library. Use when you need hover info, zoom, pan, or web-embeddable charts. Best for dashboards, exploratory analysis, and presentations. For static publication figures use matplotlib or scientific-visualization.

Standardize and validate SKILL.md files against the Agent Skills specification (agentskills.io). Use when creating new skills, auditing existing skills for spec compliance, converting legacy skill formats to standard structure, or improving descriptions for reliable triggering. Triggers on: "validate skill", "create SKILL.md", "standardize skill format", "check skill spec", "skill frontmatter", "i

Search logs and codebases for error patterns, stack traces, and

iTerm2 terminal emulator and tmux multiplexer expertise. USE WHEN user mentions iTerm2, tmux, terminal sessions, split panes, window management, OR terminal productivity on macOS.

Obtenha as melhores práticas para desenvolver aplicações com Spring Boot.

Live developer experience audit. Uses the browse tool to actually TEST the developer experience: navigates docs, tries the getting started flow, times TTHW, screenshots error messages, evaluates CLI help text. Produces a DX scorecard with evidence. Compares against /plan-devex-review scores if they exist (the boomerang: plan said 3 minutes, reality says 8). Use when asked to "test the DX", "DX aud

Rigorous visual validation expert specializing in UI testing,

Comprehensive SecOps skill for application security, vulnerability management, compliance, and secure development practices. Includes security scanning, vulnerability assessment, compliance checking, and security automation. Use when implementing security controls, conducting security audits, responding to vulnerabilities, or ensuring compliance requirements.

Gera automaticamente changelogs a partir de commits Git, seguindo commits convencionais, versionamento semântico e outras boas práticas.

Mobile game development principles. Touch input, battery, performance, app stores.

Build production-ready Node.js backend services with Express/Fastify, implementing middleware patterns, error handling, authentication, database integration, and API design best practices. Use when creating Node.js servers, REST APIs, GraphQL backends, or microservices architectures.

Write idiomatic C++ code with modern features, RAII, smart