> ## Documentation Index
> Fetch the complete documentation index at: https://docs.useagentbank.com/llms.txt
> Use this file to discover all available pages before exploring further.

# relogin

> Refresh an expired session for the active local AgentBank installation.

**Surface:** Local stdio only\
**Mutates state:** Refreshes the current installation session

```json theme={null}
{}
```

Call once after `UNAUTHENTICATED` or an expired-session response, then retry
the original operation. The tool signs a fresh Core challenge with the locally
stored installation key. It accepts and returns no credential, key, challenge,
or signature.

Do not start a new onboarding flow for a session that can be refreshed.