What is an AI agent skill?
A packaged instruction set that teaches an AI coding agent how to integrate a specific gateway correctly and securely. See the setup-* skills in the Build with AI agents section.
A skill bundles the provider-specific knowledge an AI coding agent needs: correct endpoints, the signing recipe for callbacks, sandbox setup and the security rules that must not be skipped. The agent follows the skill instead of improvising from partial training data.
Most gateways in this directory link a matching setup skill on their detail page, and every detail page offers a ready copy-paste prompt so you can hand your agent the right starting point in one click.