CLI Tools

Run Earthly E2E validation for YAML schema contracts. Use when validating YAML schema changes, testing schema contracts against live ClickHouse, or regenerating Python types, DDL, and docs from YAML. For SQL schema design and optimization, use clickhouse-architect skill instead.

Use when creating or editing any bash script (.sh) - ensures shellcheck passes after every edit with zero warnings

List and get Linear projects via CLI (read-only operations)

Design and review command-line interfaces (CLI tools) with human-first UX and UNIX composability: arguments/flags, help text, stdout/stderr, exit codes, interactivity, configuration, errors, telemetry, and distribution.

Play .cast terminal recordings in iTerm2 with full CLI controls. TRIGGERS - asciinema, .cast file, terminal recording, play cast, recording playback, play recording. Uses AskUserQuestion for speed/options selection, spawns clean iTerm2 window via AppleScript.

Control a Playwright browser via CLI - navigate, interact, and screenshot

Essential patterns, idioms, and gotchas for writing Nushell code. Use when writing Nushell scripts, functions, or working with Nushell's type system, pipelines, and data structures. Complements plugin development knowledge with practical usage patterns.

Transform predictable story elements into fresh, original versions. Use when something feels generic, when feedback says "I've seen this before," when elements orbit the protagonist too conveniently, or when you want to make a familiar trope feel new. Applies the 8-step CTF process and Orthogonality Principle.

Interactive HTTPS proxy for API security testing with traffic interception, modification, and replay capabilities. Supports HTTP/1, HTTP/2, HTTP/3, WebSockets, and TLS-protected protocols. Includes Python scripting API for automation and multiple interfaces (console, web, CLI). Use when: (1) Intercepting and analyzing API traffic for security testing, (2) Modifying HTTP/HTTPS requests and responses to test API behavior, (3) Recording and replaying API traffic for testing, (4) Debugging mobile app or thick client API communications, (5) Automating API security tests with Python scripts, (6) Exporting traffic in HAR format for analysis.

Configure iTerm2 workspace layouts with TOML-based configuration. Use when user mentions iTerm2 layout, workspace tabs, layout.toml, AutoLaunch script, or configuring terminal workspaces.

Use the Gemini CLI to search the web for current information. Use this skill whenever the user explicitly asks to "ask gemini" or wants to query Gemini with web search capabilities.

Network protocol analyzer and packet capture tool for traffic analysis, security investigations, and forensic examination using Wireshark's command-line interface. Use when: (1) Analyzing network traffic for security incidents and malware detection, (2) Capturing and filtering packets for forensic analysis, (3) Extracting credentials and sensitive data from network captures, (4) Investigating network anomalies and attack patterns, (5) Validating encryption and security controls, (6) Performing protocol analysis for vulnerability research.

Use the Gunshi library to create command-line interfaces in JavaScript/TypeScript.

Comprehensive guide for creating and managing MkDocs documentation projects with Material theme. Includes official CLI command reference with complete parameters and arguments, and mkdocs.yml configuration reference with all available settings and valid values. Use when working with MkDocs projects including site initialization, mkdocs.yml configuration, Material theme customization, plugin integration, or building static documentation sites from Markdown files.

Customize Zellij terminal workspace layouts, panes, tabs, and session configurations

Generate DBeaver configurations from Pydantic ClickHouse connection models. Use when user mentions "DBeaver config", "ClickHouse connection setup", "database client configuration", "generate connection JSON", "mise SSoT connection", or needs consistent connection configuration across development tools.

Run PostgreSQL queries and meta-commands via CLI

Quality gates for frontend code. ALWAYS use after writing React/Next.js code and before delivery. Covers: ESLint linting, TypeScript type-checking, Prettier formatting, browser console debugging. Catches errors before they reach users.

Create and update Linear project milestones via CLI (write operations)

AI agent development standards including frontmatter structure, naming conventions, tool access patterns, model selection, and Bash-only file operations for .claude/ folders