My personal collection of GitHub Copilot customizations — prompts, instructions, agents, and installable plugins — tailored to my specific workflows and preferences.
Inspired by github/awesome-copilot.
agentic/
├── AGENTS.md # Repo-specific rules for future Codex/Copilot work
├── .claude-plugin/
│ └── marketplace.json # Canonical marketplace catalog (Claude & Copilot)
├── .github/
│ ├── copilot-instructions.md # Global Copilot instructions for this repo
│ └── plugin/
│ └── marketplace.json # Compatibility copy of marketplace catalog
└── plugins/
├── README.md # How plugin packages are organized
├── devcontainer/
│ ├── .claude-plugin/
│ │ └── plugin.json
│ ├── .plugin/
│ │ └── plugin.json
│ └── skills/
│ └── devcontainer/
│ ├── SKILL.md
│ └── references/
├── engineering-workflow/
│ ├── .claude-plugin/
│ │ └── plugin.json
│ ├── .plugin/
│ │ └── plugin.json
│ └── agents/
│ ├── distiller.agent.md
│ ├── implementer.agent.md
│ └── technical-analyst.agent.md
├── synouser/
│ ├── .claude-plugin/
│ │ └── plugin.json
│ ├── .plugin/
│ │ └── plugin.json
│ └── skills/
│ └── synouser/
│ └── SKILL.md
└── ugacltool/
├── .claude-plugin/
│ └── plugin.json
├── .plugin/
│ └── plugin.json
└── skills/
└── ugacltool/
└── SKILL.md
| Folder | Purpose | File type |
|---|---|---|
.claude-plugin/ | Canonical marketplace catalog (Claude & Copilot compatible) | marketplace.json |
.github/plugin/ | Compatibility copy of marketplace catalog for Copilot users | marketplace.json |
plugins/ | Installable plugins with bundled skills and agents | **/*.md, **/*.json |
Plugins can be installed from plugins/<name>/ directly or exposed through the canonical /.claude-plugin/marketplace.json (compatible with both Claude Code and GitHub Copilot CLI). A compatibility copy is maintained at .github/plugin/marketplace.json for Copilot users.
Based on adoption, maintenance, documentation, and repository signals. Not a security audit or endorsement.
npx claudepluginhub sliekens/agentic --plugin ugacltoolSynology utilities for managing local users and groups.
Workflow agents for prompt distillation, technical design analysis, and implementation.
Create, update, validate, operate, and troubleshoot Dev Container setups, including `devcontainer.json`, local or published Dev Container Features, and `devcontainer` CLI workflows.
Ultra-compressed communication mode. Cuts ~75% of tokens while keeping full technical accuracy by speaking like a caveman.
Frontend design skill for UI/UX implementation
Comprehensive UI/UX design plugin for mobile (iOS, Android, React Native) and web applications with design systems, accessibility, and modern patterns
Memory compression system for Claude Code - persist context across sessions
Marketing skills for AI agents — conversion optimization, copywriting, SEO, paid ads, ad creative, and growth
Standalone image generation plugin using Nano Banana MCP server. Generates and edits images, icons, diagrams, patterns, and visual assets via Gemini image models. No Gemini CLI dependency required.
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