bigred — the big red button for your agent fleet

  curl -fs http://bigred.legible.sh/ok/{topic} || exit 1     # agent-side check: 200 go/throttle, 409 stop/pause

  GET  /ok/{topic}                     200 "go" | "throttle rate=R" ; 409 "stop" | "pause"
  GET  /{topic}                        state JSON (browsers get the big red button page)
  GET  /{topic}/state?wait=30&since=R  state JSON; long-polls until rev > R when wait is given
  POST /{topic}/stop | /pause | /go    flip the switch; plain-text body = reason
  POST /{topic}/throttle?rate=0.5      advisory slow-down (rate 0.0-1.0)
  GET  /{topic}/sse                    SSE stream of state transitions
  GET  /{topic}/log                    recent transitions, newest first
  GET  /README.md | /llms.txt          these docs, as text, for agents

Topics match [a-zA-Z0-9_-]{1,64} ("ok" is reserved) and are created by first use.
stop and pause never require a token; with --token, go and throttle do.