The 'Last event Ns ago' line used to repeat the full working-vs-wedged
explanation on every single status call. That's already covered by
the status tool's own MCP description and by docs/tools/subagent.md's
'Is it working, or is it wedged?' section, so restating it every call
was pure repetition on a line meant to be skimmed, possibly several
times a minute. Down to just the number and the state name.