Agent Plugins package your skills, tools, and more

Agent Plugins 1.0.0 is an open, vendor-neutral specification for bundling Agent Skills and MCP servers into portable directory-based plugins, intended to eliminate client-specific manifests and configuration differences that force developers to maintain duplicate packages. Governed by core maintainers from Amazon, Cursor, Google, Microsoft, OpenAI, and Vercel, the standard uses a minimal plugin.json manifest, fixed locations for skills and MCP declarations, explicit server transport types, independent component failure handling, and reverse-domain extension directories for client-specific features. It is designed only as a packaging format, deliberately leaving installation, permissions, security, distribution, and user experience to individual clients. The specification fits within a broader ecosystem in which Agentic Resource Discovery helps users find resources, AI Catalog describes them, and MCP and Agent Skills provide execution contracts. Google has begun supporting the format through Agents CLI and Data Agent Kit, enabling reusable skills and integrations for services such as BigQuery, Spanner, and Cloud SQL across compatible coding agents and IDEs.

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