Subagent Env Passing

Subagent Environment Passing Skill

This skill documents how to ensure subagents have access to the correct environment variables (such as PATH) when working in isolated environments like worktrees.

Workflow

1. Retrieve Environment: The Orchestrator should read the necessary environment variables from its own context if they are not already known. For example, run echo $PATH to get the current PATH.
2. Pass to Subagent: When invoking a subagent, include the environment variable values in the Prompt provided to the subagent.
3. Instruct Subagent: Explicitly instruct the subagent to set these variables in its environment before running tools that depend on them.

Example Prompt Snippet

Please use the following PATH and build settings in your environment:
export PATH=<path_to_depot_tools>:$PATH
export SISO_PROJECT=rbe-chrome-untrusted

Note: If building or running gm.py, also ensure that use_remoteexec = true is set in your build config/args.gn. You can find the correct SISO_PROJECT in build/config/siso/.sisoenv.