First pass

docs/server-json/README.md

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+# server.json file
+
+There are a variety of use cases where a _static representation of an MCP server_ is necessary:
+- Discoverability on a centralized registry (i.e. our official Registry work)
+- Discoverability on a decentralized `.well-known` endpoint
+- As a response to an initialization call, so the client knows information about the MCP server to which it is connecting
+- As an input into crafting a [DXT file](https://www.anthropic.com/engineering/desktop-extensions)
+- Packaged in with the source code of an MCP server, so as to have a structured way context 
+
+All of these scenarios (and more) would benefit from an agreed-upon, standardized format that makes it easy to port around and maintain a consistent experience for consumers and developers working with the data. At the end of the day, it's all the same data (or a subset of it). MCP server maintainers should have to manage one copy of this file, and all these use cases can serve that file (or a programmatic derivative/subset of it).
+
+Please note: this is different from the file commonly referred to as `mcp.json`, which is _an MCP client's configuration file for **running** a specific set of MCP servers_. See [this issue](https://github.com/modelcontextprotocol/modelcontextprotocol/issues/292).
+
+References:
+- [schema.json](./schema.json) - The official JSON schema specification for this representation
+- [examples.md](./examples.md) - Example manifestations of the JSON schema