PDF Reader MCP Issues

[nathanael-lin]

Root Cause

• Repository Corruption: The entire sylphxltd/pdf-reader-mcp GitHub repository has been hijacked/corrupted
• Wrong Server Type: Contains Filesystem MCP server code instead of PDF reader code
• Both npm and GitHub affected: npm package @sylphlab/pdf-reader-mcp and GitHub source both corrupted

Evidence of Corruption

• Server identifies as "filesystem-mcp" version "0.4.0" instead of "pdf-reader-mcp"
• Error: "Unexpected token 'F', "[Filesystem"... is not valid JSON" from plain text output
• Git history shows repository was converted to filesystem MCP server:
  • da65234 - Changed package name to @shtse8/filesystem-mcp
  • d9b19c2 - Updated README for Filesystem MCP Server
  • 1c98d95 - Initial setup of Filesystem MCP Server

Technical Details

• JSON Parsing Error: Server outputs "[Filesystem MCP] Server running on stdio" as plain text
• Claude Desktop expects JSON-RPC: Plain text breaks JSON parser
• Source Code Corruption: Even building from source produces filesystem server
• Package Resolution Issue: npx @sylphlab/pdf-reader-mcp@latest executes wrong binary

Attempted Fixes (All Failed)
✗ Clear npm cache and reinstall
✗ Use npm exec instead of npx
✗ Uninstall and reinstall globally
✗ Build from source (source code also corrupted)
✗ Fix TypeScript compilation errors in corrupted code