A2PCheck skill for OpenClaw & agent harnesses

The A2PCheck skill for OpenClaw-style harnesses. Drop it into your skills directory so the agent validates A2P 10DLC campaigns before submitting them — instead of guessing.

Guidance only — A2PCheck is independent and not affiliated with Twilio, The Campaign Registry, or any carrier, and we can't guarantee approval.

Install

The skill is a folder with a SKILL.mdand references (campaign schema, an example campaign, the remediation workflow). Copy it into your harness's skills location:

cp -r skill ~/.agents/skills/a2pcheck

Not yet published to a skills registry / skills.sh — use the in-repo copy for now.

What the skill does

It tells the agent to build the campaign as JSON, strip PII and secrets, POST it to https://www.a2pcheck.com/api/agent/validate, read the verdict, apply the per-field fixes, and re-validate until GREEN before handing the draft back for submission. A2PCheck never submits the campaign and can't guarantee approval.

Quick check

curl -sS -X POST https://www.a2pcheck.com/api/agent/validate \
  -H "Content-Type: application/json" \
  -d '{"tier":"basic","campaign":{
    "useCaseType":"MARKETING",
    "campaignDescription":"...",
    "sampleMessages":["...","..."],
    "messageFlow":"..."
  }}'

See the agent overview for the full schema, the OpenAPI spec, and the Claude Code variant.

Agent overview Full reference