Initialize new repo with README and MAINTAINERS file

Author: D-McAdams

MAINTAINERS.md

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+# MCP Maintainers
+
+This document lists current maintainers of the Model Context Protocol ext-auth project.
+
+**Last updated:** October 14, 2025
+
+## Lead Maintainers
+
+- [Paul Carleton](https://github.com/pcarleton)
+
+## Core Maintainers
+
+- [Aaron Parecki](https://github.com/aaronpk)
+- [Darin McAdams](https://github.com/D-McAdams)
+- [Den Delimarsky](https://github.com/localden)
+

README.md

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+# MCP Authorization Extensions
+
+The Model Context Protocol (MCP) specification is defined in the [main specification repository](https://github.com/modelcontextprotocol/modelcontextprotocol/tree/main/docs/specification). This repository contains **extensions** to the core protocol that define additional authorization mechanisms.
+
+These extensions are:
+
+- **Optional** - Implementations can choose to adopt these extensions
+- **Additive** - Extensions do not modify or break core protocol functionality; they add new capabilities while preserving core protocol behavior
+- **Composable** - Extensions are modular and designed to work together without conflicts, allowing implementations to adopt multiple extensions simultaneously
+- **Versioned independently** - Extensions follow the core MCP versioning cycle but may adopt independent versioning as needed
+
+## Governance
+
+This repository follows the [Model Context Protocol Governance](https://modelcontextprotocol.io/community/governance) process, with a dedicated set of maintainers for authorization extensions. See [MAINTAINERS.md](./MAINTAINERS.md) for the list of maintainers specific to this repository.
+
+All decisions regarding authorization extensions follow the same governance model as the core specification, including:
+- Specification Enhancement Proposals (SEPs)
+- Community discussion and consensus building
+- Maintainer review and approval
+- Transparent decision-making
+
+## Policies
+
+This repository follows the Model Context Protocol project policies:
+
+- [Code of Conduct](https://github.com/modelcontextprotocol/modelcontextprotocol/blob/main/CODE_OF_CONDUCT.md)
+- [Contributing Guidelines](https://github.com/modelcontextprotocol/modelcontextprotocol/blob/main/CONTRIBUTING.md)
+- [Security Policy](https://github.com/modelcontextprotocol/modelcontextprotocol/blob/main/SECURITY.md)
+- [Antitrust Policy](https://github.com/modelcontextprotocol/modelcontextprotocol/blob/main/ANTITRUST.md)
+