TL;DR. Where the rest of Landscapes line up the convergence of moving trends, this bucket holds the standalone pieces those trends stand on. A foundation does not branch every week — so it belongs as a single piece, not a category (a space where the branching fans out in every direction).
What to call this
Definition — where other categories deal with a trend branching right now, this one holds the stable foundation that branching presupposes — for topics that don't form their own category. For a topic to become a category, multiple signals have to fan out in every direction at the same moment. A foundation is the opposite — it hardens into a standard and moves less. So a single post is enough; forcing it into a category would overlap, over the same resources, with agent-governance (registries) and research/prompt-injection (injection).
What it currently holds
- MCP — the communication standard between agents and external tools/data. agent-governance and agent-skill all sit on this protocol. The standard solved connectability, and the operations, security, and skills on top of it branched off into their own categories.
- A2A — the standard for communication between agents. Where MCP connects an agent to tools, A2A connects it to other agents — the counterpart on the same Linux Foundation track. The discovery and trust operations on top of it are handled by agent-governance.