Reading the tail
Lines arrive newest first, so the most recent one stays at the top of the list instead of scrolling away as new lines land. Use the sort button in the toolbar to flip to oldest-first if you would rather read a startup sequence in order. Each line carries a coloured left edge for its severity — red for errors, amber for warnings, green for info, grey for debug — so you can pick the errors out of a busy list without reading every message. The level is also named beside the robot, so it is there when the colour is not enough and it is matched by Search.Choosing a time range
The Range control sets what the tab reads:- Last 5 min (the default) — a live tail of what is happening now.
- Last hour / Last 24 hours — for something you have already missed.
- Custom… — a fixed start and end. A fixed range is not a tail, so the tab loads it once and stops refreshing.
Knowing when there is more
The counter above the list reads, for example,40 of 200+ loaded — how many
lines are on screen after your search and level filters, and how many have been
loaded from the range. A trailing + means the range holds more lines than are
loaded. When that happens, Load older at the bottom of the list fetches the
next page.
Narrowing it down
- Twin — read one robot instead of the whole environment.
- Level — show only the severities you care about.
- Search — match on message text, robot name, or anything in the line’s details.
- Download — save every loaded line as JSON, filters included or not.