prompt with template that get user message as input do not supported, so long for @openspec

[arielw3]

Checks

• I have searched github.com/aws/amazon-q-developer-cli/issues and there are no duplicates of my issue
• I have run q doctor in the affected terminal session
• I have run q restart and replicated the issue again

Operating system

macOS 15.6.0 (24G84)

Expected behaviour

@openspec-proposal "my text"

Actual behaviour

@openspec-proposal --> get not parameters subtitution

Steps to reproduce

install open-spec, do openspec init, try @openspec-proposal prompt

Environment

<This will be visible to anyone. Do not include personal or sensitive information>

[q-details]
version = "1.19.2"
hash = "a27549280100ff844ee50882676d5c9ca74d309a"
date = "2025-10-28T03:24:23.387223Z (10d ago)"