OpenAI Releases AgentPlugins Standard v1.0.0

OpenAI today released AgentPlugins, a standardized packaging specification for AI agent plugins. This open, vendor-neutral standard aims to enable cross-client portability of reusable components through a unified format. The company simultaneously launched version 1.0.0 of the specification, which defines shared formats such as AgentSkills and MCP Servers, allowing clients to discover and load components according to consistent rules. According to the specification, an agent plugin directory must include a manifest file containing web links that identify the plugin and its target Agent plugin version. The skills/ directory contains AgentSkills conforming to the AgentSkills specification, while the web links describe stdio, Streamable HTTP, or traditional HTTP+SSE MCP servers. The standard seeks to address the current fragmentation where different AI agent clients each use their own proprietary plugin formats. Under existing conditions, even when plugins share identical underlying components, developers often need to repackage or duplicate those components for different clients. AgentPlugins establishes a minimal interoperability foundation for components intended to be portable across clients, using a predictable directory structure for shared elements, while leaving distribution, installation, permissions, user experience, and client-specific capabilities under the control of individual clients.