MartiX Skills

MartiX AI Skills and Plugins for GitHub Copilot CLI — marketplace-ready skill packages and plugin bundles for .NET, Power Platform, SharePoint, Markdown, and more.

Marketplace

This repository is a GitHub Copilot CLI plugin marketplace. The marketplace name is martix-skills.

Add the marketplace to your Copilot CLI:

copilot plugin marketplace add MartiXDev/skills

Quick Install

Install paths are preferred in this order:

1. Marketplace installs for normal Copilot CLI users.
2. Repo-root npx skills add ... --skill ... for standalone skill installs.
3. Direct repository-path installs for local validation or development.

Install a specific skill or plugin after adding the marketplace:

# Skills (standalone)
copilot plugin install martix-dotnet-csharp@martix-skills
copilot plugin install martix-essl@martix-skills
copilot plugin install martix-fastendpoints@martix-skills
copilot plugin install martix-fluent-ui@martix-skills
copilot plugin install martix-fluentvalidation@martix-skills
copilot plugin install martix-git@martix-skills
copilot plugin install martix-markdown@martix-skills
copilot plugin install martix-platform@martix-skills
copilot plugin install martix-power-platform@martix-skills
copilot plugin install martix-powershell@martix-skills
copilot plugin install martix-sharepoint-pnp@martix-skills
copilot plugin install martix-sharepoint-server@martix-skills
copilot plugin install martix-sharepoint-spfx@martix-skills
copilot plugin install martix-tunit@martix-skills
copilot plugin install martix-typescript@martix-skills

# Plugins (full bundles)
copilot plugin install martix-dotnet-library@martix-skills
copilot plugin install martix-git-automation@martix-skills
copilot plugin install martix-markdown-automation@martix-skills
copilot plugin install martix-webapi@martix-skills

For standalone skill installs, use repo-root skill selection:

npx skills add https://github.com/MartiXDev/skills --skill martix-dotnet-csharp
npx skills add https://github.com/MartiXDev/skills --skill martix-essl
npx skills add https://github.com/MartiXDev/skills --skill martix-fastendpoints
npx skills add https://github.com/MartiXDev/skills --skill martix-fluent-ui
npx skills add https://github.com/MartiXDev/skills --skill martix-fluentvalidation
npx skills add https://github.com/MartiXDev/skills --skill martix-git
npx skills add https://github.com/MartiXDev/skills --skill martix-markdown
npx skills add https://github.com/MartiXDev/skills --skill martix-platform
npx skills add https://github.com/MartiXDev/skills --skill martix-power-platform
npx skills add https://github.com/MartiXDev/skills --skill martix-powershell
npx skills add https://github.com/MartiXDev/skills --skill martix-sharepoint-pnp
npx skills add https://github.com/MartiXDev/skills --skill martix-sharepoint-server
npx skills add https://github.com/MartiXDev/skills --skill martix-sharepoint-spfx
npx skills add https://github.com/MartiXDev/skills --skill martix-tunit
npx skills add https://github.com/MartiXDev/skills --skill martix-typescript

For local validation or development, install directly from a repository path:

copilot plugin install MartiXDev/skills:plugins/martix-dotnet-library
copilot plugin install MartiXDev/skills:plugins/martix-git-automation
copilot plugin install MartiXDev/skills:plugins/martix-markdown-automation
copilot plugin install MartiXDev/skills:plugins/martix-webapi
copilot plugin install MartiXDev/skills:skills/martix-dotnet-csharp
copilot plugin install MartiXDev/skills:skills/martix-essl
copilot plugin install MartiXDev/skills:skills/martix-fastendpoints
copilot plugin install MartiXDev/skills:skills/martix-fluent-ui
copilot plugin install MartiXDev/skills:skills/martix-fluentvalidation
copilot plugin install MartiXDev/skills:skills/martix-git
copilot plugin install MartiXDev/skills:skills/martix-markdown
copilot plugin install MartiXDev/skills:skills/martix-platform
copilot plugin install MartiXDev/skills:skills/martix-power-platform
copilot plugin install MartiXDev/skills:skills/martix-powershell
copilot plugin install MartiXDev/skills:skills/martix-sharepoint-pnp
copilot plugin install MartiXDev/skills:skills/martix-sharepoint-server
copilot plugin install MartiXDev/skills:skills/martix-sharepoint-spfx
copilot plugin install MartiXDev/skills:skills/martix-tunit
copilot plugin install MartiXDev/skills:skills/martix-typescript

Plugin-to-Skill Matrix

Legend: 🟢 bundled in the plugin, 🔴 not bundled in that plugin.

Skill \ Plugin	martix-markdown-automation	martix-dotnet-library	martix-webapi	martix-git-automation
martix-dotnet-csharp	🔴	🟢	🟢	🔴
martix-essl	🔴	🔴	🔴	🔴
martix-fastendpoints	🔴	🔴	🟢	🔴
martix-fluent-ui	🔴	🔴	🔴	🔴
martix-fluentvalidation	🔴	🟢	🟢	🔴
martix-git	🔴	🔴	🔴	🔴
martix-markdown	🟢	🟢	🟢	🔴
martix-platform	🔴	🔴	🔴	🔴
martix-power-platform	🔴	🔴	🔴	🔴
martix-powershell	🔴	🟢	🔴	🔴
martix-sharepoint-pnp	🔴	🔴	🔴	🔴
martix-sharepoint-server	🔴	🔴	🔴	🔴
martix-sharepoint-spfx	🔴	🔴	🔴	🔴
martix-tunit	🔴	🟢	🟢	🔴
martix-typescript	🔴	🔴	🔴	🔴

Uninstall or Remove

Use the following commands to remove a plugin or one or more installed skills. For the authoritative CLI reference, see GitHub Copilot CLI plugin reference - GitHub Docs. For the standalone skills workflow, see vercel-labs/skills: The open agent skills tool - npx skills.

Remove a Copilot CLI plugin

copilot plugin uninstall martix-dotnet-library
copilot plugin uninstall martix-git-automation
copilot plugin uninstall martix-markdown-automation
copilot plugin uninstall martix-webapi

Remove one or more installed skills

npx skills list
npx skills remove martix-dotnet-csharp
npx skills remove martix-dotnet-csharp martix-markdown
npx skills remove --global martix-dotnet-csharp martix-essl \
  martix-fastendpoints martix-fluent-ui martix-fluentvalidation \
  martix-markdown martix-platform martix-power-platform martix-powershell \
  martix-sharepoint-pnp \
  martix-sharepoint-server martix-sharepoint-spfx martix-tunit martix-typescript
npx skills remove --all

Remove a marketplace registration

copilot plugin marketplace remove martix-skills

Repository Structure

.github/
  plugin/
    marketplace.json        # Marketplace definition (name: "martix-skills")
skills/
  martix-markdown/          # Markdownlint authoring and accessibility review
  martix-dotnet-csharp/     # .NET 10+ and C# 14+ modernization and review
  martix-fastendpoints/     # FastEndpoints startup, contracts, and AOT
  martix-fluentvalidation/  # FluentValidation authoring and testing
  martix-git/               # Safe Git and GitHub workflow guidance
  martix-tunit/             # TUnit test authoring and parallel execution
  martix-powershell/        # PowerShell cmdlet development
  martix-typescript/        # TypeScript 7 engineering and migration
  martix-fluent-ui/         # React-first Fluent UI v9 engineering
  martix-essl/              # Czech eSSL compliance and implementation
  martix-platform/          # MartiX.Platform architecture and .NET web apps
  martix-power-platform/    # Power Platform flows and custom connectors
  martix-sharepoint-server/ # SharePoint Server on-prem farm solutions
  martix-sharepoint-spfx/   # SharePoint Framework (SPFx) development
  martix-sharepoint-pnp/    # SharePoint PnP PowerShell, CLI for M365, PnPjs
plugins/
  martix-markdown-automation/ # Automatic Markdown check and fix workflow
  martix-dotnet-library/    # .NET library create, update, and review
  martix-git-automation/   # Report-first Git and GitHub workflow automation
  martix-webapi/            # .NET 10 web app planning and implementation

Each entry in skills/ is a standalone skill package with a plugin.json, root-level SKILL.md, AGENTS.md, and supporting rules, references, templates, assets, and metadata. Each entry in plugins/ is a plugin bundle with plugin.json and plugin-scoped agents, skills, hooks, or configuration as needed.

Maintainer Guides

For a compact entry point to the documentation tree, see the docs index. It is the detailed maintainer router for the canonical role-based documentation tree.

Guide	Purpose
Repository knowledge	Architecture, package rules, marketplace model, and current maintenance guidance.
Custom AI artifact rules	Rules for instructions, skills, plugins, agents, prompts, hooks, MCP/LSP, metadata, templates, and evals.
Custom AI artifact resources	Primary-source links for reviewing and refreshing artifact rules.
Execution and routing	Model-tier, routing, token-budget, decision-based task classification, /fleet, and worktree guidance.
Plugin bundle strategy	MartiX project-family bundles and skill-versus-plugin decision rules.
Parallel worktree guidance	Splitting package work across agents and worktrees.
Skills installation	Stable installation and verification mechanics for imported skills.
Skill portfolio coordination	Cross-skill routing and companion-skill handoff planning.
Recommended skills research	Dated external skill/plugin ecosystem shortlist.
Skill evaluation research	Dated evidence and quality criteria for skill evaluations.
Plugin layout policy	Machine-readable layout policy and validation assumptions.

Documentation Map

The docs index is the detailed maintainer map. Canonical documentation is organized by role, while package-scoped source research and implementation plans remain under docs/martix/:

Folder	Purpose
docs/policy/	Normative artifact rules and their primary-source registry.
docs/guides/	Operational maintainer procedures.
docs/architecture/	Stable package-boundary and composition decisions.
docs/knowledge/	Unified topic maps, source registries, current knowledge, and dated research.
docs/agents/	Issue tracking, triage, and agent-domain operating guidance.
docs/martix/martix-dotnet-csharp/	.NET/C# comparisons and plans.
docs/martix/martix-fastendpoints/	FastEndpoints improvement plan.
docs/martix/martix-fluentvalidation/	FluentValidation improvement plan.
docs/martix/martix-fluent-ui/	Fluent UI research and skill blueprint.
docs/martix/martix-essl/	Czech eSSL source research and compliance maps.
docs/martix/martix-markdown/	Markdown automation and package split rationale.
docs/martix/martix-csharp/	Planning artifacts for the standalone C# skill.
docs/martix/martix-power-platform/	Power Platform and custom connector source research.
docs/martix/martix-typescript/	TypeScript skill planning and source research.

Canonical package behavior lives in each skills/martix-* package, especially its SKILL.md, AGENTS.md, rules, references, metadata, and evals.

Which Doc Should I Read?

Task	Start with
Understand repository structure	Repository knowledge and Plugin layout policy
Create or update a skill, plugin, or AI artifact	Custom AI artifact rules
Decide skill versus plugin boundaries	Plugin bundle strategy
Assign model tier or split fleet work	Execution and routing
Coordinate multiple skills	Skill portfolio coordination