開發

Use when designing database schema, writing migrations, or making data storage decisions - enforces UUIDs, account_id multi-tenancy, state-as-records, no foreign keys, and proper index patterns

Execute agentic coding tools directly via bash commands with output capture. Use this when the user requests to run AI agents (Gemini, Claude Code, etc.) and get their results directly.

Use when spawning Codex agents via Otto to delegate implementation work.

Write minimal, strategic tests focused on core user flows and critical paths during feature development, deferring comprehensive edge case testing. Use this skill when writing unit tests, integration tests, or end-to-end tests, creating test files (*.test.ts, *.spec.js, __tests__/*), testing critical user workflows, focusing on behavior rather than implementation details, using descriptive test names, mocking external dependencies (databases, APIs, file systems), ensuring tests run quickly, testing business-critical functionality, or determining which tests to write during development versus dedicated testing phases. Apply this skill when completing features at logical milestones, writing tests for primary user flows, or balancing feature development speed with adequate test coverage.

Verify and test Angular 18 frontend changes using Chrome DevTools MCP. Automatically check console errors, network requests, and visual rendering after implementing tasks or when fixing UI bugs. Use when creating components, debugging visual issues, validating API integration, or ensuring UI requirements are met. File types: .ts, .html, .css, .scss

WHEN: Pandas/NumPy code review, data processing, vectorization, memory optimization WHAT: Vectorization patterns + Memory efficiency + Data validation + Performance optimization + Best practices WHEN NOT: Web framework → fastapi/django/flask-reviewer, General Python → python-reviewer

Use when designing interfaces, data visualizations, documentation, or any output where clarity and visual hierarchy matter - applies Swiss design principles of reduction, grid structure, hierarchy, and typography

Generate comprehensive pull request descriptions with summaries and test plans. Use when creating PR descriptions or documenting code changes.

TypeScript best practices and patterns

Use PROACTIVELY when debugging React Native apps. Reads console logs and executes JavaScript in running apps via Metro bundler. Invoke for: app crashes, state inspection, API debugging, error investigation, or running diagnostic code. Requires Metro running (port 8081).

React Native component patterns and best practices. Use when building RN components, handling platform differences, or implementing common mobile UI patterns.

Guidelines for writing effective Clojure docstrings with markdown formatting, wikilinks, code examples, and tables. Always use this skill when writing or reviewing docstrings in Clojure code, or when asked about docstring formatting and style. Triggers on (1) writing new functions/vars/namespaces with docstrings, (2) updating existing docstrings, (3) questions about docstring best practices, (4) reviewing code with docstrings.

Export Mermaid diagrams from documents to PNG images. MUST be run immediately after creating or editing any Mermaid diagram, BEFORE committing. Processes .md, .html, .mdx, .rst, .adoc files.

Career Advisor agent for PhD application planning and career management. Helps with university research, application tracking, professor matching, and career documentation.

Safe refactoring of Jupyter notebook code into Python modules

Create traceable specifications from architecture. Use after architecture is approved to define invariants, edge cases, and acceptance criteria.

Applying consistent visual design to HTML tools in this repository. Use when creating new tools, updating UI components, or adding buttons/icons/controls. Based on Vercel Geist design system with Claude app influences.

Expert guidance for Rust development with modern patterns

Apply Single Responsibility Principle when writing code. Keep modules focused, cohesive, and loosely coupled. Guide splitting classes with too many methods. Ensure code is reusable and testable.

Comprehensive manual for Telegram Mini Apps SDK. Use when developers need guidance on creating web applications inside Telegram, working with WebApp API, managing user data, handling authentication via initData, implementing buttons and events, working with storage, and integrating with Telegram ecosystem features.