Agent skills
Skills you can use with AI coding agents, indexed from public GitHub repositories.
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gg
Search the web using Google Gemini AI, combining search results with AI-generated answers. Core Scenario: When the user needs real-time information from the web with AI-summarized responses and source citations.
x-cmd/skill 19
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mosh
Enhanced interface for Mosh (Mobile Shell), a robust SSH replacement for unstable networks. Core Scenario: When the user needs a persistent, roaming remote terminal connection over UDP.
x-cmd/skill 19
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yq
Portable command-line YAML, JSON, and XML processor with an interactive REPL for exploring data. Core Scenario: When the user needs to query, extract, or interactively browse YAML configurations or structured data.
x-cmd/skill 19
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x-env
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.
x-cmd/skill 19
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cd
Enhanced cd command with history navigation, fuzzy search, and directory aliases. Core Scenario: When the user needs to quickly jump between historical paths or search for subdirectories using keywords.
x-cmd/skill 19
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speckit
Enhancement module for Spec Kit, helping users set up and use the Specify CLI for spec-driven development. Core Scenario: When the user wants to initialize a Specify project to formalize the "Requirement → Plan → Task → Implementation" flow.
x-cmd/skill 19
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gitconfig
Manage Git configurations using YAML files for structured and portable setup. Core Scenario: When the user needs to apply complex Git configurations or migrate settings via YAML.
x-cmd/skill 19
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sd
Modern finding and replacing tool with intuitive regex syntax and interactive FZF preview. Core Scenario: When the user needs a faster, more readable alternative to sed for text substitutions.
x-cmd/skill 19
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tee
Redirect output to files and stdout while preserving the original command's exit code. Core Scenario: When the user needs to log command output to a file without losing the ability to check the success of the command.
x-cmd/skill 19
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raku
Enhanced Raku language module for executing Raku (formerly Perl 6) scripts. Core Scenario: When the user needs to run Raku scripts or manage the Raku environment.
x-cmd/skill 19
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sed
Enhanced stream editor with interactive preview of search and replace operations using FZF. Core Scenario: When the user needs to perform text substitutions and wants to see the effects before applying changes.
x-cmd/skill 19
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pwsh
PowerShell enhancement module providing interactive REPL and system management tools. Core Scenario: When the user needs to manage system resources (disk, IP, processes) or use PowerShell via x-cmd.
x-cmd/skill 19
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mankier
Command-line client for ManKier.com, offering manual page queries and detailed command explanation. Core Scenario: When the user needs to explain shell commands or fetch specific sections of online manual pages.
x-cmd/skill 19
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gh
Enhanced GitHub CLI for managing repositories, issues, PRs, actions, and GitHub Models. Core Scenario: When the user needs to automate GitHub workflows, manage secrets, or use GitHub's AI models via CLI.
x-cmd/skill 19
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deno
Enhanced Deno module for running modern JavaScript and TypeScript with zero setup. Core Scenario: When the user needs to execute TypeScript scripts or manage Deno-based applications.
x-cmd/skill 19
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uninstall
Unified software uninstaller for various package managers (brew, scoop, apt, etc.). Core Scenario: When the user needs to uninstall software regardless of the package manager used.
x-cmd/skill 19
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pufferlib
High-performance reinforcement learning framework optimized for speed and scale. Use when you need fast parallel training, vectorized environments, multi-agent systems, or integration with game environments (Atari, Procgen, NetHack). Achieves 2-10x speedups over standard implementations. For quick prototyping or standard algorithm implementations with extensive documentation, use stable-baselines3 instead.
x-cmd/skill 19
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fluidsim
Framework for computational fluid dynamics simulations using Python. Use when running fluid dynamics simulations including Navier-Stokes equations (2D/3D), shallow water equations, stratified flows, or when analyzing turbulence, vortex dynamics, or geophysical flows. Provides pseudospectral methods with FFT, HPC support, and comprehensive output analysis.
x-cmd/skill 19
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metabolomics-workbench-database
Access NIH Metabolomics Workbench via REST API (4,200+ studies). Query metabolites, RefMet nomenclature, MS/NMR data, m/z searches, study metadata, for metabolomics and biomarker discovery.
x-cmd/skill 19
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geniml
This skill should be used when working with genomic interval data (BED files) for machine learning tasks. Use for training region embeddings (Region2Vec, BEDspace), single-cell ATAC-seq analysis (scEmbed), building consensus peaks (universes), or any ML-based analysis of genomic regions. Applies to BED file collections, scATAC-seq data, chromatin accessibility datasets, and region-based genomic feature learning.
x-cmd/skill 19
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zinc-database
Access ZINC (230M+ purchasable compounds). Search by ZINC ID/SMILES, similarity searches, 3D-ready structures for docking, analog discovery, for virtual screening and drug discovery.
x-cmd/skill 19
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astropy
Comprehensive Python library for astronomy and astrophysics. This skill should be used when working with astronomical data including celestial coordinates, physical units, FITS files, cosmological calculations, time systems, tables, world coordinate systems (WCS), and astronomical data analysis. Use when tasks involve coordinate transformations, unit conversions, FITS file manipulation, cosmological distance calculations, time scale conversions, or astronomical data processing.
x-cmd/skill 19
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pyhealth
Comprehensive healthcare AI toolkit for developing, testing, and deploying machine learning models with clinical data. This skill should be used when working with electronic health records (EHR), clinical prediction tasks (mortality, readmission, drug recommendation), medical coding systems (ICD, NDC, ATC), physiological signals (EEG, ECG), healthcare datasets (MIMIC-III/IV, eICU, OMOP), or implementing deep learning models for healthcare applications (RETAIN, SafeDrug, Transformer, GNN).
x-cmd/skill 19
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research-lookup
Look up current research information using Perplexity Sonar Pro Search or Sonar Reasoning Pro models through OpenRouter. Automatically selects the best model based on query complexity. Search academic papers, recent studies, technical documentation, and general research information with citations.
x-cmd/skill 19