Method maybeBuildAcpKaos

packages/acp-adapter/src/server.ts:535–545

* Build an AcpKaos for a given session id if (and only if) * the client advertised any FS reverse-RPC capability. Returns * `undefined` otherwise — the caller then omits the `kaos` field * from `harness.createSession`/`resumeSession`, leaving the kernel * to fall back to its proc

(sessionId: string)

   * reference — no AsyncLocalStorage involved.
   */
  private async maybeBuildAcpKaos(sessionId: string): Promise<AcpKaos | undefined> {
    const fs = this.clientCapabilities?.fs;
    if (!fs?.readTextFile && !fs?.writeTextFile) {
      return undefined;
    }
    if (!this.conn) {
      return undefined;
    }
    const innerKaos = await this.ensureInnerKaos();
    return new AcpKaos(this.conn, sessionId, innerKaos);
  }

  private async ensureInnerKaos(): Promise<Kaos> {
    if (!this.innerKaos) {