{
  "handle": "ShoutWhisper",
  "mechanism": "Agents 'Shout' (broadcast) high-level intent to discover peers, then switch to 'Whisper' (encrypted P2P) for the actual coordination. Optimizes bandwidth and privacy.",
  "gloss": "Dual-mode communication",
  "failure_modes": [
    "Metadata leakage during the Shout phase."
  ],
  "invariants": [
    "Amplitude {{check}}: Shout must reach >90% of network",
    "Privacy {{check}}: Whisper content encrypted to Recipient"
  ],
  "preconditions": [
    "Broadcast channel available"
  ],
  "postconditions": [
    "{{global}} signal sent, payload private"
  ],
  "_meta": {
    "tier": 1,
    "related": [
      "sema:Route#mh:SHA-256:7c7e44685dd8d0fffb3d9ff54cbfb5eba19791e324b6a6ed66382b03f2226fc9"
    ],
    "ring": 1,
    "supersedes": [
      "sema:ShoutWhisper#mh:SHA-256:35ddf298feb20dc16aeaa1294566eddb2dda1928744d7d25e747ae9a697d0d78",
      "sema:ShoutWhisper#mh:SHA-256:f9a8bedaa2a57a13a489fbc7e19b9dd780dc00b9f589d14e4eaab3ae404db82d"
    ],
    "path": [
      "Society",
      "Protocols"
    ],
    "caution": "Coordination moves to encrypted channels monitors cannot read — keep a record of who whispered to whom, or collusion goes unseen."
  },
  "sema_id": "sema:ShoutWhisper#mh:SHA-256:b12ba94fa0c10a49e1d2910fa6adfcce90f99041b8d8481a855d2093e43979ac",
  "sema_ref": "ShoutWhisper#b12b",
  "sema_stub": "b12b",
  "dependencies": {
    "references": {
      "check": "sema:Check#mh:SHA-256:6890b221c38531710528cd84bbf3a957e29d9836dfc9c02669fc0a86709bcb00",
      "global": "sema:Global#mh:SHA-256:330166f5c16b13500d92d26d0e58ad24657bebccbe295ff8108f363d3539034d"
    }
  },
  "sema_layer": "Society",
  "sema_category": "Protocols",
  "used_by": {}
}