Agent Plugins 1.0, an open standard that packages agent skills and MCP servers into one installable plugin, was published on August 6 with AWS, Anysphere, Microsoft, OpenAI, and Vercel, with Google joining as a core maintainer on the same day. The standard is governed independently of any single vendor. Support is generally available in VS Code, Copilot CLI, the GitHub Copilot SDK, and the GitHub Copilot app, on all Copilot plans. Users can install spec plugins from a marketplace, such as the Awesome Copilot marketplace, available by default in VS Code, Copilot CLI, and the Copilot app. Compatible clients can discover the skills and MCP server configuration they support from the same package, and existing GitHub Copilot plugins that don’t target Agent Plugins 1.0 remain supported with no migration required. For plugin maintainers, adopting the spec involves adding schema to plugin.json, keeping skills under skills/ and MCP configuration in mcp.json, and moving Copilot-specific files into the com.github.copilot/ directory. Copilot Business and Enterprise customers can use existing enterprise managed settings across VS Code, Copilot CLI, the GitHub Copilot app, and Copilot cloud agent, using enabledPlugins, extraKnownMarketplaces, and strictKnownMarketplaces in managed-settings.json.