.ts typescript files get detected as video/mp2t

[joidegn]

I have been using the mcp server pretty extensively to power coding with Claude.

One issue I have seen claude run into a lot is that .ts files get identified as video/mp2t.

For example here from the logs:

==> /Users/johannesdegn/Library/Logs/Claude/mcp.log <==
2025-04-29T13:27:51.014Z [info] [filesystem] Message from server: {"jsonrpc":"2.0","id":227,"result":{"content":[{"type":"text","text":"Binary file: /Users/johannesdegn/subledger/web/projects/accounting/src/page/Reconciliations/store.ts (video/mp2t, 1649 bytes)"},{"type":"resource","resource":{"uri":"file:///Users/johannesdegn/subledger/web/projects/accounting/src/page/Reconciliations/store.ts","mimeType":"video/mp2t","blob":"<the file blob>"}}]}}

This is because mime.TypeByExtension(ext) identifies .ts files like that. I hacked it by adding this just to solve my direct use case in detectMimeType:

		if mimeType != "" && mimeType != "video/mp2t" {
			return mimeType
		}

Im not sure what a proper solution should be, just thought I'd let you know

Here is detectMimeType with this little hack.

// detectMimeType tries to determine the MIME type of a file
func detectMimeType(path string) string {
	// First try by extension
	ext := filepath.Ext(path)
	if ext != "" {
		mimeType := mime.TypeByExtension(ext)
		if mimeType != "" && mimeType != "video/mp2t" {
			return mimeType
		}
	}

	// If that fails, try to read a bit of the file
	file, err := os.Open(path)
	if err != nil {
		return "application/octet-stream" // Default
	}
	defer file.Close()

	// Read first 512 bytes to detect content type
	buffer := make([]byte, 512)
	n, err := file.Read(buffer)
	if err != nil {
		return "application/octet-stream" // Default
	}

	// Use http.DetectContentType
	return http.DetectContentType(buffer[:n])
}

[ezynda3]

If you create a PR for this I would be happy to merge it :)

[joidegn]

Maybe like this?

#14