Function classifyFrame

apps/kimi-web/src/api/daemon/agentEventProjector.ts:1369–1396

(rawType: string, payload: unknown)

 *   3) genuine protocol "event.*" events: event.message.created, event.session.*, …
 */
export function classifyFrame(rawType: string, payload: unknown): FrameRoute {
  if (CONTROL_FRAME_TYPES.has(rawType)) return { route: 'ignore' };

  const hasPrefix = rawType.startsWith('event.');
  const name = hasPrefix ? rawType.slice('event.'.length) : rawType;

  // Ambiguous delta events: disambiguate by payload shape regardless of prefix.
  if (AMBIGUOUS_DELTA_NAMES.has(name)) {
    if (deltaIsRawAgentCore(payload)) return { route: 'agent', agentType: name };
    // Object delta or protocol-shaped payload → projected protocol event.
    return { route: 'protocol' };
  }

  // Unprefixed frames are raw agent-core (real daemon) when we know the name.
  if (!hasPrefix) {
    if (KNOWN_AGENT_CORE_TYPES.has(name)) return { route: 'agent', agentType: name };
    // Unknown unprefixed name with no protocol meaning → still try the projector
    // (it safely no-ops on unknown types and advances nothing).
    return { route: 'agent', agentType: name };
  }

  // Prefixed frames: genuine protocol events take priority.
  if (PROTOCOL_EVENT_NAMES.has(name)) return { route: 'protocol' };
  // Prefixed agent-core event (e.g. event.turn.started) → strip + project.
  if (KNOWN_AGENT_CORE_TYPES.has(name)) return { route: 'agent', agentType: name };
  // Unknown "event.*" → let toAppEvent() record it as an unknown protocol event.
  return { route: 'protocol' };
}

/**
 * True when an assistant.delta / thinking.delta payload is in the RAW agent-core