The blind service
A Go service handling checkout has no traces and one ambiguous error rate metric. They instrument it without breaking it.
Whether they choose span boundaries that match user actions.
- · a real Linux box in the browser
- · kubectl, docker, terraform, jq, yq
- · cluster, repo and cloud creds pre-wired
- · auto-checks running in the background
- · every keystroke + every command
- · terminal + screen recording
- · auto-graded pass/fail per check
