Skill UI

EAS Observe is an Expo Application Services product that tracks startup, navigation, and custom-event performance from production Expo apps. It requires a development or production build and is not available in Expo Go. Users can add instrumentation to collect metrics, query data via CLI commands, and analyze dashboards to identify performance bottlenecks like slow startup or main-thread contention.

Guides using EAS Simulator to run remote iOS simulators and Android emulators from the CLI, AI agents, or browser previews. Covers access checks, authentication, setup, controllers, and session lifetime for cloud-based app testing.

This skill allows developers to query the health metrics of published EAS Updates directly from the command line. It provides data on crash rates, install counts, unique users, payload sizes, and the split between embedded and OTA users per channel. Useful for assessing update adoption, monitoring post-publish rollouts, and detecting regressions. It supports JSON output for automation.

Use when writing or reviewing Expo EAS workflow YAML: inspect current schema and job syntax, validate configuration, and separate draft edits from launching builds or submissions.

Use eBPF to trace syscalls, network flows, and application behavior with Cilium, Tetragon, and bpftrace for deep kernel-level observability and security enforcement without code changes.

This skill creates or audits ECL Agent Harness infrastructure to ensure AI agents work reliably within a codebase. It involves generating AGENTS.md, change tracking, lint checks, and CI gates. It helps convert workflow failures into documentation and validation rules. Suitable for repositories needing AI-agent collaboration infrastructure or auditing existing harnesses.

This skill provides a comprehensive guide for implementing editorial design styles in web and mobile applications. It focuses on magazine-inspired layouts featuring sophisticated serif and sans-serif typography pairings, large drop caps, pull quotes, and columnar structures. Ideal for creating elegant, print-like digital interfaces with warm backgrounds and ink-like text colors. Includes CSS, SwiftUI, and Flutter implementation examples.

Defensive guide for reviewing authorized EDR telemetry and offline forensic evidence, classifying hook and evasion observations, and assessing detection coverage without operational bypass steps.

A comprehensive guide for creating and managing AI agent skills using the SKILL.md standard. It explains progressive disclosure, anatomy, design patterns, and best practices for enhancing agent capabilities and workflows efficiently.

A token-efficient protocol for web research that guides URL, GitHub, search, multi-URL, and file access with layered fetching to avoid full-page waste.

MCP server exposing cognitive harness modes for reasoning, code, anti-deception, and memory, returning task-matched scaffolds that help agents avoid attention decay, reasoning errors, sycophancy, and hallucination drift.

Master secure Electron desktop application development covering multi-process architecture, IPC security, packaging, and auto-update. Learn to build production-ready apps with contextIsolation, preload scripts, and native OS integration while optimizing performance and bundle size.