Scripting

Performs structural code search and refactoring using AST-based patterns. Use when searching for code patterns, refactoring code structurally, finding function calls, class definitions, or when the user mentions "ast-grep", "structural search", "code pattern", or needs to find/replace code that's difficult with regex.

Perform comprehensive dead code and clean-up analysis in Python projects using static analysis, coverage, dependency checks, and security scanning. Use when asked to clean up code, find unused code, analyze dependencies, or improve code quality.

Use when the user asks to "refactor shell script", "fix bash style", "apply Google style guide to shell", "review shell script style", "format bash script", or when writing, reviewing, or refactoring shell/bash scripts. Provides Google Shell Style Guide rules for formatting, quoting, naming, control flow, and common anti-patterns.

Use when you want to capture project-specific patterns as reusable skills - generates custom skills based on codebase patterns, common workflows, and team conventions discovered during analysis. Creates skills for patterns, testing, deployment, debugging, and setup. Do NOT use for generic skills that would work across any project - those belong in popkit core, not project-specific generation.

This skill should be used when creating, modifying, or debugging Claude Code hooks. Triggers on phrases like "create a hook", "add a hook", "make a PreToolUse hook", "automate before tool runs", "block tool execution", "validate tool input", "log tool output", "hook for Write/Edit/Bash", "PostToolUse handler", "session start hook", or when working with files in .claude/hooks/ directory.

Set up Ruby Sinatra development environment for beginners

Active Directory operational hygiene analyzer for OpsIdentity project. Detects administrative disorder, architectural debt, and suboptimal configurations—not offensive security. Use when (1) improving OpsIdentity PowerShell collection functions, (2) adding AI analysis prompts to server.js, (3) analyzing coverage gaps against 87 industry metrics, (4) implementing smart filtering or anti-hallucination rules. Triggers on AD health, GPO analysis, replication, trusts, token size, FSMO, site topology, DNS/DHCP hygiene, or requests to analyze existing OpsIdentity code.

Write gdUnit4 test code with type-specific assertions, signal testing, and scene runner support. Use when creating or updating tests for GDScript files.

MCP ツールを TypeScript コードとして実行し、トークン消費を最大 98.7% 削減します。Serena MCP ツール呼び出しが必要な場合、大規模データセット処理、コードベース全体への操作、バッチ処理、プライバシーに配慮したデータ処理が必要な場合に使用してください。

Diagnoses JavaScript errors, asset loading failures, p5.js conflicts, game logic bugs, and performance issues. Use when encountering errors, crashes, console warnings, sprites not loading, enemies stuck, towers not working, or any unexpected behavior.

Use Elsevier APIs (Scopus search / abstract / author / trends / institution / open access) via simple CLI scripts.

Use when maintaining a fork of a Python package without GitHub access, importing upstream releases from PyPI tarballs, or merging upstream updates into a fork using vendor branch strategy

VS Code language diagnostics and Jupyter code execution using IDE MCP. Use for checking type errors, running Python code in notebooks, or getting real-time code analysis. Triggers on requests for diagnostics, type checking, or notebook execution.

Browser automation with Selenium WebDriver for Python. (project)

NCBI BLAST sequence similarity search using BioPython. Use when a user wants to run BLAST programmatically with blastn/blastp and retrieve results in JSON format.

This skill analyzes code for design quality improvements across 8 dimensions: Naming, Object Calisthenics, Coupling & Cohesion, Immutability, Domain Integrity, Type System, Simplicity, and Performance. Ensures rigorous, evidence-based analysis by: (1) Understanding code flow first via implementation-analysis protocol, (2) Systematically evaluating each dimension with specific criteria, (3) Providing actionable findings with file:line references. Triggers when users request: code analysis, design review, refactoring opportunities, code quality assessment, architecture evaluation.

Write and debug Nushell scripts, pipelines, and commands. Also build Nushell plugins in Rust. Use when working with .nu files, writing Nushell code, converting bash to Nushell, creating custom Nushell commands/plugins, or when the user mentions nushell.

Run code on cloud GPUs with GPU CLI. Use when user wants to run Python/ML code on remote GPUs, install GPU CLI, configure gpu.toml, troubleshoot pods, or manage cloud GPU resources via RunPod.

Use when setting up git pre-commit and pre-push hooks - provides simple shell script approach and pre-commit framework method, both calling justfile commands for DRY principle

Generate properly formatted Conventional Commits messages with Claude Code footer. Use when creating git commits, writing commit messages, or the user mentions "commit", "git commit", or wants to save changes.