Comprehensive guide for FinLab quantitative trading package for Taiwan stock market (台股). Use when working with trading strategies, backtesting, Taiwan stock data, FinLabDataFrame, factor analysis, stock selection, or when the user mentions FinLab, trading, 回測, 策略, 台股, quant trading, or stock market analysis. Includes data access, strategy development, backtesting workflows, and best practices.
Code refactoring expert for improving code quality, readability, maintainability, and performance. Specializes in Java and Python refactoring patterns, eliminating code smells, and applying clean code principles. Use when refactoring code, improving existing implementations, or cleaning up technical debt.
Maintain ExStruct ADR index artifacts by scanning ADR files and synchronizing README, index.yaml, and decision-map.md metadata. Use when ADRs are added, updated, superseded, or reclassified and the repository needs a refreshed ADR map for humans and AI agents.
Design engineering principles for making interfaces feel polished. Use when building UI components, reviewing frontend code, implementing animations, hover states, shadows, borders, typography, micro-interactions, enter/exit animations, or any visual detail work. Triggers on UI polish, design details, "make it feel better", "feels off", stagger animations, border radius, optical alignment, font smoothing, tabular numbers, image outlines, box shadows.
Mine past Claude Code and Codex conversations for uncaptured patterns, corrections, and knowledge. Cross-references with existing brain content. Triggers: "ruminate", "mine my history", "what have I been working on", "review past sessions", "extract learnings".
Audit and evolve the brain vault — prune outdated content, discover cross-cutting principles, review skills for structural encoding opportunities. Triggers: "meditate", "audit the brain", "prune brain", "review skills", "consolidate notes", "prune notes".
Main application building orchestrator. Creates full-stack applications from natural language requests. Determines project type, selects tech stack, coordinates agents.
Native multi-agent orchestration using Claude Code's Agent Tool. Use when multiple independent tasks can run with different domain expertise or when comprehensive analysis requires multiple perspectives.
Use when writing SOPs that require precise requirement levels using RFC 2119 constraint keywords (MUST, SHOULD, MAY). Covers proper usage of requirement keywords for deterministic agent behavior.
Use when validating and casting data with Ecto changesets including field validation, constraints, nested changesets, and data transformation. Use for ensuring data integrity before database operations.
Use when defining data structures using Ecto schemas including fields, associations, embedded schemas, and schema metadata. Use for modeling domain data in Elixir applications.
Prefer explicit configuration over framework defaults to prevent environment-dependent failures
Use when C++ templates and metaprogramming including template specialization, SFINAE, type traits, and C++20 concepts.
Use when C++ smart pointers including unique_ptr, shared_ptr, and weak_ptr for automatic memory management following RAII principles.
Use when managing memory safely in C++ with smart pointers including unique_ptr, shared_ptr, weak_ptr, and RAII patterns.
Use when building reusable component patterns with Tailwind CSS. Covers component extraction, @apply directive, and composable design patterns.
Use when setting up or customizing Tailwind CSS configuration, theme customization, plugins, and build setup. Covers tailwind.config.js setup and content paths.
Use when optimizing Tailwind CSS for production, reducing bundle size, and improving performance. Covers PurgeCSS, JIT mode, and build optimization.
Use when building responsive layouts and mobile-first designs with Tailwind CSS. Covers breakpoints, container queries, and responsive utilities.
Use when working with Tailwind CSS utility classes for layout, spacing, typography, colors, and visual effects. Covers utility-first CSS patterns and class composition.
