How to make OpenCode load environment variables from a file when executing commands in skills #9334

Question

I’m trying to execute some shell commands inside an OpenCode skill, but these commands depend on several environment variables (for example API keys, custom paths, or runtime configs).

At the moment, it seems that OpenCode does not automatically load environment variables from a specified file (such as .env) when running commands defined in a skill.

What I want to achieve

I’d like OpenCode to be able to load environment variables from a designated env file before executing skill commands, so that:

Skills can run in a reproducible environment

Secrets and configs don’t need to be hard-coded in skill definitions

The behavior is closer to tools like dotenv, direnv, or envsubst

Expected behavior (examples)

Some possible approaches that would work:

Allow specifying an env file in the skill configuration, e.g.

envFile: .env

Or automatically load .env from the project root when executing skills

Or provide a hook / setting to inject environment variables before command execution

Question

What is the recommended way to make OpenCode load environment variables automatically when executing commands inside a skill?
If this is not currently supported, is there a plan or recommended workaround?

Thanks in advance 🙏