What did you just do?

Preflight checks by task. Instruments assume you have chosen how to look; symptoms assume something has already gone wrong. These assume only that you are about to say a task is finished — which is the one thing that is always true at the moment this reference is for.

• I deployed a static site Files copied to a web root, or pushed to a host that serves them. 5 checks
• I restarted a service A systemd unit, container or daemon was reloaded to pick up new code or config. 5 checks
• I changed a configuration file A config, stylesheet, env file or manifest was edited. 5 checks
• I checked that a page renders correctly A screenshot, headless capture or visual review was used to judge a page. 6 checks
• I ran the test suite and it passed A test run reported success. 4 checks
• I ran a script or pipeline A shell script, CI step or command pipeline completed. 6 checks
• I fetched or scraped a resource A URL was downloaded, an API called, or a page parsed. 6 checks
• I read the logs and saw no errors Log output, journal or stdout was inspected for errors. 5 checks
• The machine is slow, or something ran out of memory Memory, CPU or load average was inspected to explain slowness, a stall, or a container or process being OOM killed. 5 checks
• I published a package or release An artifact was uploaded to a registry, or a release was cut. 4 checks