Vault Agent for custom vault backend

We wote our own Vault security backend plugin with custom pathS. But I am wondering if vault agent can be customized or configured to call that custom paths and get that values to inject on kubernetes environment.
If so, is there any examples repo out there?

The vault.hashicorp.com/agent-inject-secret-tenants annotation does not help you in this case?

try going to the link [vault.hashicorp.com/agent-inject-secret-tenants], but the link is invalid.

Is that the same as https://www.vaultproject.io/docs/platform/k8s/injector?

Would the secrets be posted in environment as plain text, would like that to be encrypted at least?

Sorry my bad. The second link is correct.

You would end up with a plain text file in the filesystem of your container.