How do I reconnect to a stream without missing or repeating steps?

One connection lasts up to 10 minutes, and networks drop. To resume:

1. Keep a counter after. After each step event, set after = data.index + 1.
2. When the connection ends without a done event (a timeout event, an error or a dropped socket), reconnect:

curl -N "https://api.agent.clatterlabs.xyz/v1/runs/RUN_ID/events?after=12" \
  -H "Authorization: Bearer $CLATTER_API_KEY" \
  -H "X-Clatter-Account: $CLATTER_ACCOUNT_ID"

3. Stop when you receive done.

The docs include complete Python and JavaScript clients that do exactly this.