kiro cli autocomplete not working in antigravity terminal

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 26.5.0 (25F71)

Expected behaviour

When starting to type, for example, "cd" or "git" inside a repo, auto-complete selection should appear.

Actual behaviour

Nothing appears. Auto-complete is not working.

Steps to reproduce

1. Open Antigravity and open any project.
2. Open the terminal.
3. Start typing. For example, "cd", "git" or "npm"
4. Type space
5. Nothing happen

Environment

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

[q-details]
version = "2.8.1"
hash = "43ca6648d9e72889f9b499548df52a230d216456"
date = "2026-06-17T23:47:37.987102Z (10h ago)"
variant = "full"

[system-info]
os = "macOS 26.5.0 (25F71)"
chip = "Apple M1 Pro"
total-cores = 10
memory = "32.00 GB"

[environment]
os = "Mac"
shell-path = "/bin/zsh"
shell-version = "5.9"
terminal = "VSCode"
install-method = "unknown"

[env-vars]
PATH = "/Users/USER/.rvm/gems/ruby-3.4.8/bin:/Users/USER/.rvm/gems/ruby-3.4.8@global/bin:/Users/USER/.rvm/rubies/ruby-3.4.8/bin:/Users/USER/.antigravity-ide/antigravity-ide/bin:/Users/USER/.antigravity/antigravity/bin:/Users/USER/.nvm/versions/node/v20.15.1/bin:/usr/local/bin:/System/Cryptexes/App/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/local/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/appleinternal/bin:/pkg/env/global/bin:/Library/Apple/usr/bin:/opt/homebrew/bin:/Users/USER/.rvm/gems/ruby-3.4.8/bin:/Users/USER/.rvm/gems/ruby-3.4.8@global/bin:/Users/USER/.rvm/rubies/ruby-3.4.8/bin:/Users/USER/.antigravity-ide/antigravity-ide/bin:/Users/USER/.antigravity/antigravity/bin:/Users/USER/.nvm/versions/node/v20.15.1/bin:/Users/USER/.local/bin:/Users/USER/Library/Android/sdk/emulator:/Users/USER/Library/Android/sdk/platform-tools:/Applications/Antigravity.app/Contents/Resources/app/bin:/Users/USER/.rvm/bin:/Users/USER/.antigravity-ide/extensions/vscjava.vscode-java-debug-0.59.0-universal/bundled/scripts/noConfigScripts:/Users/USER/Library/Android/sdk/emulator:/Users/USER/Library/Android/sdk/platform-tools:/Applications/Antigravity.app/Contents/Resources/app/bin:/Users/USER/.rvm/bin"
QTERM_SESSION_ID = "7bf0f3f0467b41a982cc8bd0260f13bd"
Q_SET_PARENT_CHECK = "1"
Q_TERM = "2.8.1"
SHELL = "/bin/zsh"
TERM = "xterm-256color"
ZDOTDIR = "/Users/USER"
__CFBundleIdentifier = "com.microsoft.VSCode"

Inizia riproducendo il problema in un terminale Antigravity usando zsh, seguendo i passaggi elencati con comandi come cd, git e npm; esegui q doctor e q restart come indicato. L'attività è completata quando, dopo aver digitato questi comandi e uno spazio in un terminale di progetto, vengono visualizzate le selezioni del completamento automatico.