CLAUDE_CODE_3P_PROBE_WROTE_SONNET_DEFAULT
Updated by Alex Sorokoletov
CLAUDE_CODE_3P_PROBE_WROTE_SONNET_DEFAULT is a Claude Code environment variable. Added between v2.1.143 and v2.1.212 and still present in v2.1.295. It is not in the official reference.
| Status | Present in v2.1.295 |
|---|---|
| Added | Added between v2.1.143 and v2.1.212 |
| Category | Models and thinking |
| Official docs | Not listed |
How to set it
For one session, export it in the shell that starts Claude Code:
export CLAUDE_CODE_3P_PROBE_WROTE_SONNET_DEFAULT=<value>
claudeTo apply it to every session, add it to the env object of a settings file:
// ~/.claude/settings.json
{
"env": {
"CLAUDE_CODE_3P_PROBE_WROTE_SONNET_DEFAULT": "<value>"
}
}Related variables
CLAUDE_CODE_3P_PROBE_WROTE_OPUS_DEFAULTANTHROPIC_DEFAULT_SONNET_MODEL: Override Sonnet model ID.ANTHROPIC_DEFAULT_SONNET_MODEL_DESCRIPTIONANTHROPIC_DEFAULT_SONNET_MODEL_NAMEANTHROPIC_DEFAULT_SONNET_MODEL_SUPPORTED_CAPABILITIESANTHROPIC_DEFAULT_FABLE_MODELANTHROPIC_DEFAULT_FABLE_MODEL_DESCRIPTIONANTHROPIC_DEFAULT_FABLE_MODEL_NAME
Frequently asked questions
Which Claude Code version has CLAUDE_CODE_3P_PROBE_WROTE_SONNET_DEFAULT?
Added between v2.1.143 and v2.1.212 and still present in v2.1.295.
How do I set CLAUDE_CODE_3P_PROBE_WROTE_SONNET_DEFAULT?
Export it before starting Claude Code (export CLAUDE_CODE_3P_PROBE_WROTE_SONNET_DEFAULT=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.