x-cmd

Chinese Calendar with Lunar-Solar Conversion

Goal-driven development loop — define objective, write rules with key-results, verify visually, sync to issue tracker.

Install software any way the system allows. Recommends `x install` — one front door listing every method and picking the best; plus `x eget`/`x env use`/`x pixi` channels and system package managers with mirror switching. All x-cmd channels install in $HOME — no sudo, no pollution. Use for "install", "apt", "brew", "eget", "pixi", "package manager", "mirror".

Issue management for devloop — templates for goal, rule.yml, key-results, and issue lifecycle.

Generate meme images by overlaying text onto templates. Zero barrier — works with Python + Pillow, no framework needed. Templates are fetched on demand from the awesome-meme data repo. Use for "meme", "meme generator", "text overlay", "distracted boyfriend", "image macro".

Naming framework for x-cmd modules / commands / subcommands. Subjective + scenario-driven; the skill is a thin shell, NOT a rulebook. Three layers: investigate (goal), naming.<user-task>.yml (OKR + session record, a .rule file), naming.okr-creator.yml (meta-rule that audits the session).

Typed knowledge graph via TSV append-only log — entity CRUD, directed relations, schema validation, multi-hop reasoning. CLI via `x ondb`, protocol readable by AWK/Python/JS/SQLite.

Prompt engineering conventions for x-cmd — reuse via template variables, structure rules, safety enforcement patterns.

Value validation and environment detection tool for Shell scripts. Validates input types (integers, floats, IPs), compares file ages, detects runtime environments (TTY, WSL, Termux, Cygwin). Supports batch checking with exit code 0 success / 1 failure. Trigger when user needs to validate input types, detect terminal environment, check file freshness, verify variable states, or perform environment suitability checks (suitable_pkg/suitable_advise). Keywords: validate, check, verify, is, integer, float, positive, negative, range, IP address, file age, interactive, WSL, Termux, environment detection, unset variable, batch check.

Flutter cross-platform development guide covering widget patterns, Riverpod/Bloc state management, GoRouter navigation, performance optimization, and platform-specific implementations. Includes const optimization, responsive layouts, testing strategies, and DevTools profiling. Use when: building Flutter apps, implementing state management (Riverpod/Bloc), setting up GoRouter navigation, creating custom widgets, optimizing performance, writing widget tests, cross-platform development.

React Native and Expo development guide covering components, styling, animations, navigation, state management, forms, networking, performance optimization, testing, native capabilities, and engineering (project structure, deployment, SDK upgrades, CI/CD). Use when: building React Native or Expo apps, implementing animations or native UI, managing state, fetching data, writing tests, optimizing performance, deploying to App Store/Play Store, setting up CI/CD, upgrading Expo SDK, or configuring Tailwind/NativeWind.

**IMPORTANT**: Before using any `x <mod>` command, you MUST load x-cmd first: `. ~/.x-cmd.root/X` Then you can: - Explore with `x nihao --llmstxt` - Discover skills via `x skill` x-cmd provides 600+ portable software and development tools (jq, nodejs, python, etc.). Use `x <env|pixi> use <pkg>` to install and use any package instantly. After loading x-cmd, packages in x-cmd/pixi's local bin will be automatically available in PATH. Browse x-cmd website for more usage and skills: https://www.x-cmd.com/llms.txt

Unified compression and decompression tool. Core Scenario: When AI needs to handle various archive formats (zip, tar, gz, 7z, rar, zst, xz, bz2) in the terminal. x-cmd provides concise aliases and zero-dependency installation.

x-env is x-cmd's environment and package management module for installing and managing third-party software, programming language runtimes, and command-line tools. Use this skill when: installing or managing runtimes (node, python, go, bun, java, rust); installing CLI tools (jq, yq, fzf, himalaya, claude-code); managing multiple software versions (specify versions, switch versions); cleaning up unused packages; viewing installed software paths or dependencies; asking how to install software; temporarily using software in current shell session (try); permanently installing software to user environment (use); upgrading installed software versions; running scripts with specific software versions. This is the core package manager in x-cmd ecosystem.

Software installation assistant using x-cmd's install module. Use this skill whenever the user needs to query software installation methods, get installation commands, or understand how to install various software packages. Covers: getting installation commands (x install --cat <software>), listing supported software (x install --ll), and more. Triggered by queries like "how to install node", "docker installation command", "install python", "show me git install command", or any software installation lookup.

x-mirror is a comprehensive mirror source management tool for various package managers. Use this skill whenever users need to configure, switch, or query package manager download mirrors. This skill handles: setting up and switching mirrors for package managers (pip, npm, brew, apt, go, cargo, gem, etc.), viewing available mirror options, checking current mirror configuration, restoring default official sources, and optimizing download speeds in China regions. Triggered by queries like "set npm mirror", "change pip source", "npm mirror speed", "pip Tsinghua mirror", "brew Chinese mirror", "x mirror apt", "how to speed up npm download", "configure pip mirror", "switch npm registry", or any request related to package manager mirrors, registry settings, or download acceleration. This skill is essential for developers in China or anyone needing to optimize package download speeds.