Description

When using BlueBubbles without Private API enabled (i.e., SIP not disabled), the BlueBubbles API requires a tempGuid parameter when sending messages via AppleScript. The OpenClaw BlueBubbles plugin doesn't include this parameter, causing all sends to fail.

Steps to Reproduce

1. Set up BlueBubbles on macOS without Private API (SIP enabled)
2. Configure OpenClaw's BlueBubbles channel
3. Attempt to send a message via message(action='send', channel='bluebubbles', ...)
4. Message appears in Messages app but shows 'Send Failure'

Expected Behavior

Message sends successfully

Actual Behavior

BlueBubbles API returns:

{"status":400,"message":"You've made a bad request!","error":{"type":"Validation Error","message":"A 'tempGuid' is required when sending via AppleScript"}}

Workaround

Direct API call with tempGuid works:

curl -X POST "${BB_URL}/api/v1/message/text?password=${PW}" \
  -H "Content-Type: application/json" \
  -d '{"chatGuid": "iMessage;-;+1234567890", "message": "test", "tempGuid": "temp-$(uuidgen)"}'

Environment

• OpenClaw: 2026.2.1
• BlueBubbles Server: 1.9.9
• macOS: 15.3.1
• Private API: disabled (SIP enabled)