@fusedashlabs/ui9000-workspace/dist/server/stdio.js

UI9000 workspace MCP. One tool, show_workspace, draws a chart from your table. Set TYPESAFE_API_KEY to let Jev choose the chart.

/**
 * stdio transport: newline-delimited JSON-RPC in, newline-delimited JSON out.
 * Nothing else may be written to stdout — a stray log breaks the frame stream.
 */
import { errorResponse, PARSE_ERROR } from './create-server.js';
const INTERNAL_ERROR = -32603;
export function connectStdio(server, streams = { input: process.stdin, output: process.stdout }) {
    const { input, output } = streams;
    let buffer = '';
    // One promise chain keeps replies in request order even when a handler awaits.
    let queue = Promise.resolve();
    const onData = (chunk) => {
        buffer += typeof chunk === 'string' ? chunk : chunk.toString('utf8');
        let newline = buffer.indexOf('\n');
        while (newline !== -1) {
            const line = buffer.slice(0, newline);
            buffer = buffer.slice(newline + 1);
            queue = queue
                .then(() => dispatch(server, line, output))
                .catch((error) => {
                const message = error instanceof Error ? error.message : 'Internal error';
                write(output, errorResponse(0, INTERNAL_ERROR, message));
            });
            newline = buffer.indexOf('\n');
        }
    };
    input.on('data', onData);
    input.setEncoding?.('utf8');
    return () => {
        input.off?.('data', onData);
        buffer = '';
    };
}
async function dispatch(server, line, output) {
    const text = line.trim();
    if (text === '')
        return;
    let message;
    try {
        message = JSON.parse(text);
    }
    catch {
        write(output, errorResponse(0, PARSE_ERROR, 'Request line is not valid JSON.'));
        return;
    }
    const response = await server.handle(message);
    if (response !== null)
        write(output, response);
}
function write(output, response) {
    output.write(`${JSON.stringify(response)}\n`);
}