
Joan developed MCP Bundles (MCPB) support for the modelcontextprotocol/registry repository, focusing on secure and verifiable package management. She introduced a new registry type for MCPB, extending the package model to store file hashes and enforce SHA-256 hashing for all bundles, ensuring integrity verification. Her work included implementing validation logic for MCPB URLs, specifically targeting GitHub and GitLab endpoints, and updating both documentation and schema definitions to reflect these enhancements. Using Go, YAML, and Markdown, Joan applied skills in backend development, data modeling, and schema design, delivering a robust feature with careful attention to security and maintainability.

In August 2025, delivered MCP Bundles (MCPB) support in the modelcontextprotocol/registry with a secure, verifiable packaging workflow. Implemented a new registry type for MCPB, extended the package model to store file hashes for integrity verification, added MCPB URL validation for GitHub and GitLab, and enforced SHA-256 hashing for all MCPB packages. Documentation and schema updates accompany the changes, aligned with the commit 57efb58143dadf35039aaf0f37a28d9d2d8f59e6.
In August 2025, delivered MCP Bundles (MCPB) support in the modelcontextprotocol/registry with a secure, verifiable packaging workflow. Implemented a new registry type for MCPB, extended the package model to store file hashes for integrity verification, added MCPB URL validation for GitHub and GitLab, and enforced SHA-256 hashing for all MCPB packages. Documentation and schema updates accompany the changes, aligned with the commit 57efb58143dadf35039aaf0f37a28d9d2d8f59e6.
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