/**
* StdioLogger - minimal logger for stdio transport
*
* Only writes errors to stderr, all other log levels are no-ops
* This is required because MCP protocol over stdio requires only JSON-RPC messages on stdout
*/
/**
* Minimal logger for stdio transport
* Only errors are written to stderr, all other methods are no-ops
*/
export class StdioLogger {
info(_message: string, ..._args: any[]): void {
// No-op for stdio - MCP protocol requires only JSON-RPC messages on stdout
}
error(message: string, ...args: any[]): void {
// Write errors to stderr for stdio transport
const errorMsg =
args.length > 0
? `${message} ${args.map((a) => (a instanceof Error ? a.message : JSON.stringify(a))).join(' ')}`
: message;
process.stderr.write(`[ERROR] ${errorMsg}\n`);
}
warn(_message: string, ..._args: any[]): void {
// No-op for stdio
}
debug(_message: string, ..._args: any[]): void {
// No-op for stdio
}
}
