Rename mcp.json to .mcp.json for Cursor plugin auto-discovery

The Cursor plugin spec requires the MCP config file to be named
.mcp.json (with a leading dot) for automatic discovery. Without
this, the MCP server configuration is silently ignored.

Also updates the validator script and plugin README to match.

Made-with: Cursor

Author: Rohan Shah

plugins/render/mcp.json plugins/render/.mcp.jsonplugins/render/mcp.json renamed to plugins/render/.mcp.json

@@ -8,7 +8,7 @@ Cursor plugin for deploying, debugging, and monitoring applications on [Render](
 - `skills/`: Deploy, debug, and monitor skills (synced from [render-oss/skills](https://github.com/render-oss/skills))
 - `agents/`: Render deployment assistant
 - `commands/`: Deploy to Render and check service status
-- `mcp.json`: Render MCP server configuration
+- `.mcp.json`: Render MCP server configuration
 - `hooks/`: Validates render.yaml after edits
 
 ## Skills sync

plugins/render/README.md

@@ -349,7 +349,7 @@ async function main() {
       addWarning(`${entry.name}: no hooks/hooks.json file found (only needed when using hooks).`);
     }
 
-    const mcpPath = path.join(pluginDir, "mcp.json");
+    const mcpPath = path.join(pluginDir, ".mcp.json");
     if (!(await pathExists(mcpPath))) {
       addWarning(`${entry.name}: no mcp.json file found (only needed when using MCP servers).`);
     }