Function run

src/commands/text/chat.ts:179–325

(config: Config, flags: GlobalFlags)

    'mmx text chat --message "Hello" --output json',
  ],
  async run(config: Config, flags: GlobalFlags) {
    const { system, messages: parsedMessages } = parseMessages(flags);
    let messages = parsedMessages;

    if (messages.length === 0) {
      if (isInteractive({ nonInteractive: config.nonInteractive })) {
        const hint = await promptText({
          message: 'Enter your message:',
        });
        if (!hint) {
          process.stderr.write('Chat cancelled.\n');
          process.exit(1);
        }
        messages = [{ role: 'user', content: hint }];
      } else {
        failIfMissing('message', 'mmx text chat --message <text>');
      }
    }

    const model = (flags.model as string)
      || config.defaultTextModel
      || 'MiniMax-M2.7';
    const format = detectOutputFormat(config.output);
    const shouldStream = flags.stream === true || (
      flags.stream === undefined
      && format !== 'json'
      && process.stdout.isTTY
    );

    const body: ChatRequest = {
      model,
      messages,
      max_tokens: (flags.maxTokens as number) ?? 4096,
      stream: shouldStream,
    };

    if (system) body.system = system;
    if (flags.temperature !== undefined) body.temperature = flags.temperature as number;
    if (flags.topP !== undefined) body.top_p = flags.topP as number;

    if (flags.tool) {
      const tools = (flags.tool as string[]).map(t => {
        try {
          return JSON.parse(t);
        } catch {
          // Not JSON — treat as file path
          try {
            const raw = readFileSync(t, 'utf-8');
            return JSON.parse(raw);
          } catch {
            throw new CLIError(
              `Invalid tool definition: "${t}" is neither valid JSON nor a readable file.`,
              ExitCode.USAGE,
            );
          }
        }
      });
      body.tools = tools;