Kibana Build details:

VERSION: 9.1.0 BC6
BUILD: 88250
COMMIT: 9f30374092edd41719399f7ef81cb7ae78d8a3ab

Host OS and Browser version: Windows, All

Preconditions:

1. 9.1.0 BC6 Kibana cloud environment should be available.
2. 8.17.9 or below agent version should be installed.

Steps to reproduce:

1. Navigate to CLI.
2. Run agent uninstall commandsudo elastic-agent uninstall.
3. Observe error on running uninstall command: Error: error uninstalling agent: error uninstalling components: error applying dynamic inputs: error unpacking subarray in config for skip key inputs: expected ',' when parsing '${host.os_version} != "12 (bookworm)" and (${host.os_platform} != "amzn" or ${host.os_version} != "2023") and (${host.os_platform} != "sles" and startsWith(${host.os_version}, "15") == false)' accessing 'inputs.0'

Expected Result:
On Kibana version 9.1.0, agents running versions below 8.17.9 using System integration should be uninstalled.

Whats working fine:
Agents running versions above 8.17.9 using System integration are uninstalled successfully.

Screen-shot: