npx -y @elastic/mcp-server-elasticsearch doesn't work on Linux

[pasky]

On Linux, npx tries to run the main script as executable file, but it is missing #!/usr/bin/env node on the first line, so shell tries to implement the executable file as a shell script rather than running it in node.

Therefore, you get this output:

/root/.npm/_npx/dbf1ae1819fe4520/node_modules/.bin/mcp-server-elasticsearch: 1: /app: Permission denied
/root/.npm/_npx/dbf1ae1819fe4520/node_modules/.bin/mcp-server-elasticsearch: 2: README.md: not found
/root/.npm/_npx/dbf1ae1819fe4520/node_modules/.bin/mcp-server-elasticsearch: 3: README.md: not found
/root/.npm/_npx/dbf1ae1819fe4520/node_modules/.bin/mcp-server-elasticsearch: 4: incident_agent/: Permission denied
/root/.npm/_npx/dbf1ae1819fe4520/node_modules/.bin/mcp-server-elasticsearch: 5: import: not found
...

This makes it problematic not just on Linux workstations, but also when running the MCP server from MCP client in a docker container.

[pasky]

https://docs.npmjs.com/cli/v9/configuring-npm/package-json#bin says

Please make sure that your file(s) referenced in bin starts with #!/usr/bin/env node, otherwise the scripts are started without the node executable!

[JoshMock]

0.3.1 has been published to npm with this fixed.