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TypeScript · 30–60 min · Any coding agent · 2 attempts Download the starter

session-key-rotation · v1task summary

After a planned signing-key rotation, some active sessions stop working. Fix the behavior without changing the token format or the public API.

Do not changetoken format · public API

Submitsolution.patch + evidence.md

Evaluationautomated · fixed criteria

The symptom is an observation, not a diagnosis. The diagnosis is your part of the work.

HOW IT WORKS

01

Download the starter

A small frozen repository with visible tests and participant instructions.

02

Run the visible tests before making any changes.

03

Work with any coding agent or implement the change yourself.

04

Upload the exact solution artifacts.

05

The evaluator checks behavior automatically and gives one retry when applicable.

attempt 1 of 2

Upload exactly solution.patch and evidence.md. Do not include raw chat, credentials, or private repository data.