CLAUDE_CODE_QUESTION_PREVIEW_FORMAT
Updated by Alex Sorokoletov
CLAUDE_CODE_QUESTION_PREVIEW_FORMAT is a Claude Code environment variable: Format for permission question previews. Present since v2.1.69 or earlier and still present in v2.1.294. It is not in the official reference.
| Status | Present in v2.1.294 |
|---|---|
| Added | Present since v2.1.69 or earlier |
| Category | Other |
| Official docs | Not listed |
How to set it
For one session, export it in the shell that starts Claude Code:
export CLAUDE_CODE_QUESTION_PREVIEW_FORMAT=<value>
claudeTo apply it to every session, add it to the env object of a settings file:
// ~/.claude/settings.json
{
"env": {
"CLAUDE_CODE_QUESTION_PREVIEW_FORMAT": "<value>"
}
}Release notes that mention it
Related variables
CLAUDE_CODE_ARTIFACT_PREVIEW_EMULATOR: Pins the artifact-preview emulator on (true) or off (false); left unset, a feature flag decides.CLAUDE_CODE_ARTIFACT_PREVIEWCLAUDE_CODE_QUESTION_EXTENDEDCLAUDE_CODE_QUESTION_OPTIONAL_DESCRIPTIONSCLAUDE_PREVIEW_CLASSIFIER_FLOORANTHROPIC_BETAS: Comma-separated beta feature headers.ANTHROPIC_CUSTOM_HEADERS: Custom HTTP headers (newline-separated Key: Value).ANTHROPIC_FEDERATION_RULE_ID
Frequently asked questions
What does CLAUDE_CODE_QUESTION_PREVIEW_FORMAT do?
Format for permission question previews
Which Claude Code version has CLAUDE_CODE_QUESTION_PREVIEW_FORMAT?
Present since v2.1.69 or earlier and still present in v2.1.294.
How do I set CLAUDE_CODE_QUESTION_PREVIEW_FORMAT?
Export it before starting Claude Code (export CLAUDE_CODE_QUESTION_PREVIEW_FORMAT=value), or add it to the "env" object in ~/.claude/settings.json to apply it to every session.
All variables, searchable: Claude Code environment variables.