v0.1.48

Published as @automattic/mcp-remote@0.1.48.

Changes

• --instructions-file flag (#2): load markdown/text from a local file and append it to the upstream server's InitializeResult.instructions, letting operators surface server-level guidance to MCP clients (e.g. Claude Code session context) without requiring an upstream change. If the upstream response already has instructions, the file is appended after a blank line; otherwise the file contents are used as-is. The path is resolved against cwd and read once at startup; a missing/unreadable path or missing flag value exits with an error.
• Fix id-0 correlation in the proxy (#2): the message transformer used if (!messageId), which treated JSON-RPC id 0 as absent. MCP SDK clients increment request ids from 0, so the very first request — typically initialize — bypassed correlation entirely, silently skipping both instructions injection and tools/list filtering. Replaced with explicit undefined/null checks and added regression tests for numeric id 0.

Spec reference: InitializeResult.instructions is a standard, optional field in the MCP 2025-06-18 lifecycle schema.

Install: npx @automattic/mcp-remote@0.1.48 https://remote.mcp.server/sse

v0.1.47

First release published under the @automattic scope on npm: @automattic/mcp-remote@0.1.47.

This is a maintained fork of the unmaintained geelen/mcp-remote (via anandnalya/mcp-remote). The package name and repository now point at Automattic, and the README documents the fork lineage. Original attribution is preserved in the package contributors and the MIT LICENSE.

Install: npx @automattic/mcp-remote https://remote.mcp.server/sse