Skill: turborepo
Author: vercel
Description: Turborepo monorepo build system guidance. Triggers on: turbo.json, task pipelines,
dependsOn, caching, remote cache, the "turbo" CLI, --filter, --affected, CI optimization, environment
variables, internal packages, monorepo structure/best practices, and boundaries.

Use when user: configures tasks/workflows/pipelines, creates packages, sets up
monorepo, shares code between apps, runs changed/affected packages, debugs cache,
or has apps/packages directories.