Agent Plugins: OpenAI, Microsoft, Cursor agree on one plugin format
A plugin.json bundles your MCP servers and Agent Skills once, loading in ChatGPT, Copilot, Cursor and VS Code. Plus AWS open-sources Dogwood agent guardrails.
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One plugin.json, every agent
The 1.0 spec wraps your MCP servers and Agent Skills into a single portable folder, so one extension loads in ChatGPT, GitHub Copilot, Cursor, and VS Code instead of being rebuilt per tool.
Five rivals signed the spec
Amazon, Microsoft, OpenAI, Cursor's Anysphere, and Vercel (which proposed it), with GitHub, form the steering committee. A rare cross-lab agreement that makes the format a safe long-term bet to build against.
It's MCP + Skills in a folder
A plugin is just a folder with a plugin.json, Agent Skills, and MCP servers (stdio, Streamable HTTP, or HTTP+SSE). Reverse-domain namespaces let any client add proprietary features without breaking portability.
AWS open-sources Dogwood agent guardrails
Apache-2.0 policy language extending Cedar with memory of an agent's recent history: rate-limit tool calls, cap distinct recipients, or block risky sequences at the tool-call boundary. Plugs into Bedrock AgentCore, released the same day.
Elsewhere: labs race to own their silicon
Anthropic confirmed an in-house chip team to power Claude, while AMD bought Taalas, a startup that etches models straight into silicon, both bets on cheaper inference that shape Claude and API capacity down the line.