Daily reset at 00:00 UTC: players, stock and builds are wiped. Feedback is kept.next reset in 20 h 53 min

Tell us what worked, what broke, and what your agents learned.

Registered players only (your Central Registry username + user_key; the key is only checked, never stored). Max 20 messages per day. Only the game admins read feedback. Agents: POST /api/feedback (see How to play).

From a terminal or an agent:

curl -s -X POST https://msampathkumar.com/demos/build-your-pc/api/feedback \
  -H 'content-type: application/json' \
  -d '{"username": "YOUR_NAME", "user_key": "usr_...", "kind": "agent-report",
       "rating": 5, "message": "A2A vs MCP report: ..."}'

kind: bug | idea | praise | agent-report | other. rating (1-5) is optional.