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Build production React Native apps with Expo, navigation, native modules, offline sync, and cross-platform patterns. Use when developing mobile apps, implementing native integrations, or architecting …
Use when developing embedded/no_std Rust. Keywords: embedded, no_std, microcontroller, MCU, ARM, RISC-V, bare metal, firmware, HAL, PAC, RTIC, embassy, interrupt, DMA, peripheral, GPIO, SPI, I2C, UART…
Backtest crypto and traditional trading strategies against historical data. Calculates performance metrics (Sharpe, Sortino, max drawdown), generates equity curves, and optimizes strategy parameters. …
ClickHouse database patterns, query optimization, analytics, and data engineering best practices for high-performance analytical workloads.
Use Antithesis documentation efficiently for product, workflow, and integration questions. Prefer the snouty docs CLI when available, and otherwise request markdown versions of documentation pages dir…
Best practices for Python development including PEP 8, modern Python 3.10+ features, and package management.
World-class application security - OWASP Top 10, secure coding patterns, and the battle scars from security incidents that could have been preventedUse when "security, secure, vulnerability, injection…
Ruthlessly audit project features for justification. Challenge every feature to prove its value with evidence or face removal. Uses MCP tools for research.
Develop native iOS apps with Swift. Covers MVVM architecture, SwiftUI, URLSession for networking, Combine for reactive programming, and Core Data persistence.
Automate Gradle tasks for Android projects - build, test, coverage, clean. Use when building APKs, running unit tests, generating coverage reports, or checking dependencies.
Git commit message conventions. Focus on the formatting and style consistency of commit messages. Prefer to learn and follow the existing commit history style of the project, and if there is no clear …
Java coding standards for Spring Boot services: naming, immutability, use of Optional, streams, exceptions, generics, project layout.
Project optimization utilities. Use when users want to optimize textures, meshes, or improve performance. Triggers: optimize, compression, texture size, mesh compression, performance, LOD, Unity优化, Un…
Comprehensive WCAG accessibility auditing with multi-tool testing (axe-core + pa11y + Lighthouse), TRUE PARALLEL execution with Promise.allSettled, graceful degradation, retry with backoff, context-aw…
World-class application security - OWASP Top 10, secure coding patterns, and the battle scars from security incidents that could have been preventedUse when "security, secure, vulnerability, injection…
This skill should be used when the user asks to 'verify sources', 'check citations', 'fact-check footnotes', 'verify quotes', 'source check', 'are my cites real', 'check for hallucinated citations', o…
Build and deploy the same feature consistently across web, mobile, and desktop platforms using API-first architecture and parallel implementation strategies.
Implements state management with ChangeNotifier and Provider in Flutter. Use when setting up ChangeNotifier models, providing them to the widget tree, consuming state with Consumer or Provider.of, or …
Run Codex CLI for code analysis and automated edits. Use when users ask to run `codex exec`/`codex resume`, continue a prior Codex session, or delegate software engineering work to OpenAI Codex.
Vue Test Utils patterns - mount, shallowMount, wrapper API, trigger, setValue, flushPromises, testing composables, Pinia store mocking
Master modern SQL with cloud-native databases, OLTP/OLAP optimization, and advanced query techniques. Expert in performance tuning, data modeling, and hybrid analytical systems.
QA Tester Agent. Responsible for writing, executing, and validating tests. It is used when there are requests related to testing, validation, unit tests, integration tests, E2E.
Systematic debugging approaches for isolating and fixing software defects. Use when something isn't working and the cause is unclear.
Flag Elastic-internal jargon in documentation and suggest plain-language replacements. Use when reviewing, writing, or editing docs to catch terms that external readers would not understand.