Automatically refresh runtime tokens - #149
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The runtime proxy token expires after an hour, so any command run against a session older than that failed. Persist the token's absolute expiry and, when loading a session for VM access, re-fetch the token from /tun/m/assignments if it is missing or within 5 minutes of expiring.
A script can run longer than the proxy token lives, so the kernel shutdown at the end of colab run would fail with the token captured at creation.
Nearly every get_session caller repeated the same not-found echo and exit.
sethtroisi
approved these changes
Sep 25, 2026
This was referenced Sep 25, 2026
This was referenced Sep 26, 2026
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Store the expiration of the runtime token in the session, and before making any calls to the backend, check whether it's nearly expired, and fetch a fresh one if so.
Fixes #147, #140, #106
Inspired by PRs #136, #123, #109