Rebase PR #2282 onto main (post-#2332) and unify feature flag
allowlists into a single source of truth.
- Add MCPAppsFeatureFlag, AllowedFeatureFlags, InsidersFeatureFlags,
and ResolveFeatureFlags in feature_flags.go
- AllowedFeatureFlags includes all user-controllable flags (MCP Apps +
granular), InsidersFeatureFlags only includes MCPAppsFeatureFlag
- HeaderAllowedFeatureFlags() now delegates to AllowedFeatureFlags
- Builder uses feature checker instead of insidersMode bool
- Remove InsidersOnly field from ServerTool and WithInsidersMode from
Builder
- HTTP feature checker uses ResolveFeatureFlags for per-request
resolution with insiders expansion
- Tool handlers check MCPAppsFeatureFlag via IsFeatureEnabled instead
of InsidersMode
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
The HTTP server now respects the same static CLI flags as the stdio
server: --toolsets, --tools, --exclude-tools, --read-only,
--dynamic-toolsets, and --insiders.
A static inventory is built once at startup from these flags, producing
a pre-filtered tool/resource/prompt universe. Per-request headers
(X-MCP-Toolsets, X-MCP-Tools, etc.) can only narrow within these
bounds, never expand beyond them. When no static flags are set, the
existing behavior is preserved — headers have full access to all
toolsets.
Fixes#2156
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Instead of new CLI flags (--server-name, --server-title), reuse the
existing string override mechanism that already supports tool title/
description overrides throughout the codebase.
Users can now configure the server name and title via:
- GITHUB_MCP_SERVER_NAME / GITHUB_MCP_SERVER_TITLE env vars
- "SERVER_NAME" / "SERVER_TITLE" keys in github-mcp-server-config.json
This is consistent with how all other user-visible strings are
overridden (e.g. GITHUB_MCP_TOOL_GET_ME_USER_TITLE). No new struct
fields or CLI flags are needed.
Co-authored-by: SamMorrowDrums <4811358+SamMorrowDrums@users.noreply.github.com>
Allows users running multiple GitHub MCP Server instances (e.g., for
github.com and GitHub Enterprise Server) to override the server name and
title in the MCP initialization response.
- Add --server-name / GITHUB_SERVER_NAME flag+env to override name
- Add --server-title / GITHUB_SERVER_TITLE flag+env to override title
- Defaults remain "github-mcp-server" and "GitHub MCP Server"
- Applies to both stdio and HTTP server modes
- Add tests for default and custom name/title
Co-authored-by: SamMorrowDrums <4811358+SamMorrowDrums@users.noreply.github.com>
Create a shared mcp.SchemaCache in RunHTTPServer and pass it through
to each per-request MCP Server via ServerOptions. This avoids repeated
JSON schema reflection and resolution when a new Server is created for
every request in stateless mode, matching the pattern used by the
remote server.
RossTarrant