prompts/list returns empty — HubspotSalesCoachPrompt and feedback prompt defined but never registered

[ross-makeacompany]

The README advertises prompts (e.g. "use the prompt Provide feedback for HubSpot MCP tools from your preferred client application") and the codebase ships dist/prompts/hubspotSalesCoachPrompt.js defining HubspotSalesCoachPrompt. But dist/prompts/promptsRegistry.js is literally:

export {};

So registerPrompt(...) is never called for any of these prompts. As a result, MCP clients calling prompts/list get an empty array, and the prompts described in the README aren't discoverable.

Repro (against @hubspot/mcp-server@0.4.0):

mkdir t && cd t && npm init -y && npm install @hubspot/mcp-server
(
  echo '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"protocolVersion":"2025-06-18","capabilities":{},"clientInfo":{"name":"x","version":"0"}}}'
  sleep 0.4
  echo '{"jsonrpc":"2.0","method":"notifications/initialized"}'
  sleep 0.3
  echo '{"jsonrpc":"2.0","id":2,"method":"prompts/list"}'
  sleep 0.5
) | PRIVATE_APP_ACCESS_TOKEN=dummy node node_modules/@hubspot/mcp-server/dist/index.js

tools/list works (returns 21 tools); prompts/list returns {"prompts":[]}.

Suggested fix: have promptsRegistry.js import and registerPrompt(new HubspotSalesCoachPrompt()) (and the feedback prompt) at module load time, matching the pattern that presumably exists for tools in toolsRegistry.ts.