Skip to content

[MCP] Add effective server name header to MDM config#91

Open
rwjblue-glean wants to merge 1 commit into
mainfrom
rwjblue/mcp-mdm-effective-server-name-header
Open

[MCP] Add effective server name header to MDM config#91
rwjblue-glean wants to merge 1 commit into
mainfrom
rwjblue/mcp-mdm-effective-server-name-header

Conversation

@rwjblue-glean

@rwjblue-glean rwjblue-glean commented Jun 18, 2026

Copy link
Copy Markdown
Member

BLUF: MDM-generated MCP configs now carry Cursor's effective server-name header.

This updates mcp-config.json generation to include X-Glean-MCP-Server-Name: extension-${serverName} alongside the existing MDM metadata header, preserves optional per-server headers in the config schema, and passes those headers through when configuring supported MCP host tools. This pairs with the server-side consumer of the header, askscio/scio#254253 (client-aware tool-name length budgets), part of the PACT-299 re-land. (It originally referenced #251984/#251985, which were reverted and re-landed as that stack.)

Validation:

  • bunx vitest run src/config.spec.ts src/config-writer.spec.ts src/hosts/index.spec.ts
  • bunx vitest run
  • bunx tsc --noEmit
  • ./build.sh

@rwjblue-glean rwjblue-glean marked this pull request as ready for review July 1, 2026 21:18
@rwjblue-glean rwjblue-glean requested a review from a team as a code owner July 1, 2026 21:18
@rwjblue-glean

Copy link
Copy Markdown
Member Author

CI should be fixed by #92

@rwjblue-glean rwjblue-glean force-pushed the rwjblue/mcp-mdm-effective-server-name-header branch from 17f7b13 to ff495d5 Compare July 1, 2026 21:55
@rwjblue-glean

Copy link
Copy Markdown
Member Author

discussed today; going to refactor this to leverage the existing metadata fields

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

None yet

Projects

None yet

Development

Successfully merging this pull request may close these issues.

2 participants