@sellable/install/bin/sellable-agent-runtime-helper.mjs

One-command installer for Sellable MCP in Claude Code, Codex, and Hermes

#!/usr/bin/env node

import { closeSync, constants, fstatSync, lstatSync, openSync, readFileSync } from "node:fs";
import { runRuntimeHelperRequest } from "../lib/sellable-agent/runtime-helper.mjs";

const requestIndex = process.argv.indexOf("--request");
const requestPath = requestIndex >= 0 ? process.argv[requestIndex + 1] : null;
if (!requestPath || process.argv.length !== 4) {
  process.stderr.write("usage: sellable-agent-runtime-helper --request /absolute/path\n");
  process.exitCode = 64;
} else {
  try {
    const configPath = "/etc/sellable-agent/runtime-helper.json";
    const before = lstatSync(configPath);
    if (before.isSymbolicLink() || !before.isFile() || before.uid !== 0 || (before.mode & 0o022) !== 0) {
      throw new Error("runtime helper config rejected");
    }
    const descriptor = openSync(configPath, constants.O_RDONLY | (constants.O_NOFOLLOW ?? 0));
    let bytes;
    try {
      const after = fstatSync(descriptor);
      if (!after.isFile() || after.uid !== 0 || after.dev !== before.dev || after.ino !== before.ino || (after.mode & 0o022) !== 0) {
        throw new Error("runtime helper config changed during open");
      }
      bytes = readFileSync(descriptor, "utf8");
    } finally {
      closeSync(descriptor);
    }
    const config = JSON.parse(bytes);
    const result = await runRuntimeHelperRequest({ requestPath, config });
    process.stdout.write(`${JSON.stringify(result)}\n`);
    if (!result.ok) process.exitCode = 1;
  } catch {
    process.stdout.write(`${JSON.stringify({ ok: false, code: "runtime_helper_config_rejected" })}\n`);
    process.exitCode = 1;
  }
}