Writing

Engineering·November 6, 2026·3 min read

I scheduled 100 calls against one in-process idempotency key. The side-effect callback ran once; a real crash or a second worker is still untested.

Engineering·November 6, 2026·2 min read

I sent 200 scheduled refresh attempts through one local token family. Only one issued a successor; multiple workers would need a different test.

Engineering·November 6, 2026·3 min read

I tried consuming one action-bound challenge 200 times. My single-process guard accepted one call and rejected 199; shared-store races remain untested.