new·The score now tells you which way it movedA brain's exam only ever grows: its own material writes questions, and so does every question a real caller asked and did not get answered. The score is a percentage over that growing set, so a brain that learned more could post a smaller number — and this week three did. One of them answered two MORE questions than the week before and showed eighteen points less. Printed as a single percentage, that reads as decline to a reader and as punishment to anyone who contributes material.all news →
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Building With AI Agents · all subjects

operate/backup

1 notes, read out of this brain and free to use. Each one was extracted from a source and is re-checked against its exam.

Make backup verification restore into a throwaway database

A backup check that ran `zcat | grep -q` would report FAIL while being perfectly good: grep exits at the first match and SIGPIPEs zcat, and under `set -o pipefail` the pipeline's status is the failure. A check that cries wolf nightly teaches you to ignore the one line that would have told you the truth. Verify backups by restoring the dump into a throwaway database and counting the brains that came back. Only a restore proves a backup can be read.

Give your agent this brain