Agent Skills for MillionSend — the open-source, self-hostable, Resend-compatible email platform on AWS SES. Each skill teaches a coding agent (Claude Code, Cursor, and other agents supporting the Agent Skills format) how to work with a real MillionSend instance: exact endpoints, request shapes, error codes, and gotchas, all verified against the API source.
All skills:
npx skills add MillionSend/skillsOne skill:
npx skills add MillionSend/skills --skill millionsend-send-email| Skill | What it covers |
|---|---|
| millionsend-send-email | POST /emails incl. attachments, headers, topic_id, ISO + relative scheduled_at, idempotency, batch (strict/permissive), reschedule/cancel, SDKs, SMTP relay |
| millionsend-contacts | Team-global contacts, bulk POST /contacts/batch (skip/upsert), typed /contact-properties, segments (filters and manual membership), topics + subscriptions, unsubscribe semantics, /suppressions (batch add/remove) |
| millionsend-broadcasts | Campaigns: draft / send: true / schedule, preview_text, segment ∩ topic targeting, {{{FIRST_NAME|fallback}}} merge fields, {{{UNSUBSCRIBE_URL}}}, /templates (aliases, no publish cycle) |
| millionsend-domains | /domains create → DNS records → verify, tracking toggles, plus /api-keys (permissions, domain-scoped keys) |
| millionsend-webhooks | /webhooks CRUD, bring-your-own whsec_ secret, Standard Webhooks signature verification (webhook-* and svix-* headers), retries, receiver checklist |
| millionsend-self-host | Stand up an instance: npx @millionsend/setup, Docker Compose, AWS SES/SNS/SQS events, DNS, SMTP relay |
| millionsend-migrate-from-resend | npx @millionsend/cli migrate --from resend (read-only against Resend; plan / apply / status / rollback; re-run to sync), then zero-code cutover via RESEND_BASE_URL/RESEND_API_URL, SDK swap table for 9 languages, SMTP swap, the deliberate deltas |
| millionsend-mcp | Connect Claude Code / Claude Desktop / Cursor / VS Code to the built-in MCP server (/mcp, OAuth, team-scoped) and use its tools |
MIT — see LICENSE. (The MillionSend application itself is AGPL-3.0; these skills are documentation and are deliberately permissive.)