paperclipai/paperclip · error · ServeParseError

TCP must be an object

Error message

TCP must be an object

What it means

Shape guard in parseServeStatus: the serve status JSON has a `TCP` field but it is not an object (e.g. an array or scalar). The parser tolerates extra top-level fields but strictly validates TCP/Web shapes it depends on, so a malformed TCP block is rejected.

Source

Thrown at packages/tailscale-https-broker/src/serve-config.ts:67

  }
  return assertCanonicalPort(Number(portText));
}

/**
 * Parse serve status JSON into a normalized, port-keyed model. Tolerates extra
 * top-level fields (Tailscale evolves its schema) but strictly validates the
 * `TCP` and `Web` shapes it depends on.
 */
export function parseServeStatus(json: unknown): ParsedServe {
  if (!isObject(json)) {
    throw new ServeParseError("serve status must be a JSON object");
  }
  const entries = new Map<number, ServeEntry>();

  const tcp = json.TCP;
  const httpsPorts = new Set<number>();
  if (tcp !== undefined && tcp !== null) {
    if (!isObject(tcp)) throw new ServeParseError("TCP must be an object");
    for (const [portKey, value] of Object.entries(tcp)) {
      if (!/^[0-9]+$/.test(portKey)) {
        throw new ServeParseError(`non-numeric TCP port: ${portKey}`);
      }
      const port = assertCanonicalPort(Number(portKey));
      if (!isObject(value)) throw new ServeParseError(`TCP[${portKey}] must be an object`);
      if (value.HTTPS === true) httpsPorts.add(port);
      if (!entries.has(port)) entries.set(port, { port, https: value.HTTPS === true, handlers: [] });
      else entries.get(port)!.https = value.HTTPS === true;
    }
  }

  const web = json.Web;
  if (web !== undefined && web !== null) {
    if (!isObject(web)) throw new ServeParseError("Web must be an object");
    for (const [hostKey, value] of Object.entries(web)) {
      const port = portFromWebKey(hostKey);
      if (!isObject(value)) throw new ServeParseError(`Web[${hostKey}] must be an object`);

View on GitHub (pinned to 120ae5428f)

Solutions

1. Fix the serve config so the TCP section is an object keyed by port.

When it happens

Trigger: Thrown at packages/tailscale-https-broker/src/serve-config.ts:67 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of paperclipai/paperclip@120ae5428f (2026-08-18). Data as JSON: /api/errors/53ff486442cd6ef4. Report an issue: GitHub.