No setting to disable inline input autocomplete suggestions (promptSuggestionEnabled does not control this)

Description

The inline input autocomplete suggestion (e.g. \"push it\" appearing grayed out in the prompt input bar after a commit) cannot be disabled via settings.

What was tried

Setting promptSuggestionEnabled: false in ~/.claude/settings.json does not affect the inline input suggestion. The suggestion still appears.

Expected behavior

There should be a setting to fully disable inline input autocomplete suggestions in the prompt bar. promptSuggestionEnabled: false should either control this, or a separate setting should exist that does.

User impact

Users who do not want suggested follow-up commands appearing inline in the input bar have no way to disable them.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>