Mirrord Preview Environment Skill

Purpose

Help users create and manage mirrord preview environments. A preview environment runs only the modified service(s) as isolated pods in a shared cluster, while their dependencies reach the rest of the main cluster through mirrord. Traffic is scoped by an environment key and a filter, so a change can be collaborated on, validated, and reviewed against real traffic without affecting live services.

This skill covers two modes:

1. Ad-hoc (developer) mode — a developer runs the mirrord preview CLI (start / status / stop) directly.
2. CI mode — the metalbear-co/mirrord-preview GitHub Action wires previews into a PR lifecycle (start on open/push, stop on close).

When to Use This Skill