CLAUDE_RUNNER_TRUST_CANONICAL_PREWARM
Updated by Alex Sorokoletov
CLAUDE_RUNNER_TRUST_CANONICAL_PREWARM is a Claude Code environment variable. Added between v2.1.222 and v2.1.224 and still present in v2.1.295. It is not in the official reference.
| Status | Present in v2.1.295 |
|---|---|
| Added | Added between v2.1.222 and v2.1.224 |
| Category | Other |
| Official docs | Not listed |
How to set it
For one session, export it in the shell that starts Claude Code:
export CLAUDE_RUNNER_TRUST_CANONICAL_PREWARM=<value>
claudeTo apply it to every session, add it to the env object of a settings file:
// ~/.claude/settings.json
{
"env": {
"CLAUDE_RUNNER_TRUST_CANONICAL_PREWARM": "<value>"
}
}Related variables
CLAUDE_CODE_ENVIRONMENT_RUNNER_VERSION: Environment runner version.CLAUDE_RUNNER_FETCH_SERVER_PROGRESS_CAP_MS: On a self-hosted runner, caps how long a git fetch keeps waiting while the server is still reporting progress on a large repository.CLAUDE_CODE_RELAUNCH_HOME_TRUSTCLAUDE_RUNNER_ACCOUNT_EMAILCLAUDE_RUNNER_ACCOUNT_IDCLAUDE_RUNNER_ACTIVITY_FDCLAUDE_RUNNER_ATTEMPTCLAUDE_RUNNER_CHECKOUT_PATH
Frequently asked questions
Which Claude Code version has CLAUDE_RUNNER_TRUST_CANONICAL_PREWARM?
Added between v2.1.222 and v2.1.224 and still present in v2.1.295.
How do I set CLAUDE_RUNNER_TRUST_CANONICAL_PREWARM?
Export it before starting Claude Code (export CLAUDE_RUNNER_TRUST_CANONICAL_PREWARM=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.