Amazon & OpenAI unite on agent plugins — Anthropic is MIA

a coalition including amazon, cursor, microsoft, openai, and vercel published agent plugins v1.0.0, an open standard defining a universal package format for ai agent extensions. the specification allows developers to wrap agent skills and mcp server connections into a single directory structure compatible with all member platforms, eliminating the need to rebuild integrations for different proprietary formats. notably absent is anthropic, the creator of the underlying model context protocol and agent skills, which continues to pursue its own native plugin integration. this schism creates competing compatibility layers for agentic tooling, forcing the developer community to navigate fragmented standards.