📝Resend's CLI is its terminal interface with four headline features: local React Email file support, Automations management, webhook listening, and agent Skills.
Available via cURL installer, npm, or Homebrew, the CLI exposes 50+ commands covering the full Resend API surface. Version 1.0 already supported sending from local .html files; 2.0 extends that to .tsx and .jsx React Email files, enabling template iteration without deploying first. Automations are now fully manageable from the terminal — create event schemas, trigger runs, and inspect results with resend automations list and resend event-schemas create. Webhook listening collapses what previously required a tunneling tool into a single resend webhooks listen command that handles the tunnel and forwards all supported event types to a local server.
The Agent Skills feature is the most architecturally significant addition. Skills give AI agents a structured, opinionated interface to the Resend API — enforcing best practices, reducing unnecessary calls, and enabling autonomous workflows. An agent with CLI access can maintain its own inbox, receive and process emails, handle attachments, and respond to users without human intervention. The 2.0 release also adds programmatic log retrieval, system keychain-based API key storage (macOS Keychain, Linux Secret Storage, Windows Credential Manager), and replaces the team command with the new auth command.
The agent Skills capability reframes the CLI from a developer convenience tool into a first-class surface for agentic email infrastructure — directly relevant to BrianBot steward workflows where autonomous email handling would reduce intervention points.