tg-migrate-validate

What problem does it solve? Migrating infrastructure to Terragrunt risks accidentally destroying existing resources if the state import is incomplete. This Skill validates the migration by running terragrunt plan across all services and blocking any plan that would destroy resources. ## Core Features & Use Cases - HCL Validation: Syntax-checks all generated Terragrunt configuration files and verifies structural integrity before planning. - Plan Execution: Runs terragrunt plan across every service in the target environment and captures add, change, and destroy counts. - Zero-Destruction Gate: Fails the migration if any resource would be destroyed, reporting the affected services and suggesting fixes such as re-importing state. - Use Case: After importing an environment's state in Phase 4, run this validation to confirm the plan shows zero destroys before considering the migration safe to proceed. ## Quick Start Run the validation phase on my migrated environment by passing the target repository path and environment key, for example: validate ./my-infra-repo prod.