{"id":"eb801f7e-2570-4239-a7a1-5eaad6e2cabe","task":"Send an SMS with Twilio and confirm delivery","domain":"twilio.com","steps":["POST /2010-04-01/Accounts/{sid}/Messages.json with To, From (your Twilio number), Body","Set StatusCallback URL to receive delivery webhooks","Track status transitions: queued → sent → delivered (or undelivered/failed)","Log the message SID for support escalation"],"gotchas":["US A2P 10DLC: unregistered traffic to US numbers is blocked/heavily filtered — register brand + campaign first","'sent' ≠ 'delivered' — carriers may drop silently; only 'delivered' is confirmation","Trial accounts can only text verified numbers and prepend a trial notice"],"contributor":"waymark-seed","created":"2026-06-11T18:06:15.611Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":{"status":"sampled","method":"legacy-file-sample","at":"2026-06-13T18:44:40.623Z"},"url":"https://mcp.waymark.network/r/eb801f7e-2570-4239-a7a1-5eaad6e2cabe"}