Agent Skills in Practice: Managing a Growing Catalog with MCPbundler

Agent Skills in Practice: Managing a Growing Catalog with MCPbundler

Agent skills are modular, reusable packages that bundle instructions and resources for specialized tasks. With adoption accelerating across tools such as GitHub Copilot, VS Code and Claude Code, managing skills across multiple clients becomes challenging. When a skill exists in one environment but not another, the workflow breaks. MCPbundler solves this by centralizing your skill catalog and ensuring consistent availability across tools.

Summary

In the video, we walk through how a single skills catalog can be shared across Codex and other tools, even when native support is uneven. MCPbundler acts as a control plane: it discovers skills from multiple locations, groups them, and exposes them as MCP tools when needed. The result is a portable, curated set of capabilities you can turn on or off per workflow.

Agent skills need structure, not just files

• Modular, reusable packages of instructions, scripts and resources for specialized tasks.
• Clear inputs and outputs.
• Deterministic behaviour.
• Permissioned access to external resources.
• Auditable execution.
• Open, tool agnostic format so the same skill can serve multiple clients such as GitHub Copilot and other agent platforms.
• Governance prevents duplicated folders, mismatched versions and uncertainty about approved skills.

MCPbundler as the skills control plane

• Skills live in a dedicated tab where you can add sources from global directories, project folders or custom paths.
• Centralizes management of MCP servers and skills on macOS.
• Installs skills from marketplaces or GitHub links.
• Synchronizes skills across clients like Claude, Codex, AMP and Goose.
• Organizes skills into folders.
• Allows enabling or disabling of skills or entire toolsets in bulk.
• Enables preview of a skill before enabling it to keep context lean.
• Exposes selected skills as MCP tools for tools without native skills support.
• Ensures consistent capabilities across all tools and keeps the catalog portable and curated.

A practical workflow to keep skills usable

• Start with a base location for your canonical catalog.
• Add a project‑specific location when you want to experiment.
• Pull skills from a marketplace or point MCPbundler at a GitHub URL that contains a folder with SKILL.md.
• If a skill arrives as a local download, add it manually and preview it before enabling.
• Create a temporary folder like “testing” to try new skills without contaminating your main set.
• When a skill proves useful, move it into a shared folder and enable it where needed.
• When a skill does not, disable or remove it to stop it appearing across clients.
• This keeps the catalog tidy, and the same skills follow you from tool to tool.

Conclusion

Agent skills are only valuable when they stay in sync with how you actually work. MCPbundler turns scattered skills into a managed capability set, so teams can share knowledge without fighting tool boundaries. Keep the catalog clean, preview before you enable, and let MCPbundler do the synchronization heavy lifting.