OpenAI Codex Launches a Plugin Marketplace

OpenAI added a plugin system to Codex that bundles skills, app integrations, and MCP server configs into installable packages shareable across teams and projects. The architecture is straightforward - a manifest file, optional skills directory, MCP configuration, and app mappings - with discovery through an official curated directory, repo-level marketplaces, or personal local registries. Public publishing isn't live yet, but the scaffolding is there. The move mirrors what Anthropic did with MCP and what IDE vendors have done with extension stores for years: once a coding agent gains traction, the next play is always a distribution layer. Whether developers actually build for Codex plugins or just keep shipping MCP servers that work everywhere remains the open question.