# Terragrunt 0 84

> Apply Terragrunt 0.84 HCL, CLI, orchestration, migration, and behaviour changes. Load for Terragrunt work targeting 0.84 or later when the model's knowledge may predate the 2025-08-01 release.

- Skill: `cedws/terragrunt-0-84` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add cedws/terragrunt-0-84`
- Raw SKILL.md: https://api.skillmd.com/api/skills/cedws/terragrunt-0-84/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: AI & ML
- Author: cedws (https://skillmd.com/u/cedws)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/cedws/terragrunt-0-84

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# Terragrunt 0.84

This overview applies to target Terragrunt versions of at least 0.84.

## CLI removals

Breaking change: the deprecated `spin-up`, `tear-down`, `plan-all`, `apply-all`, `destroy-all`, `output-all`, and `validate-all` commands were removed. Their supported workflow is the redesigned `run --all` interface with the corresponding OpenTofu or Terraform command.

## HCL and generation

The `exclude` block accepts `no_run = true` to prevent a matching action even when the unit is invoked directly; without it, exclusion applies only while constructing a multi-unit run queue.

The `catalog` and `scaffold` commands accept `--no-dependency-prompt` for non-interactive Boilerplate dependencies.

A stack generation with `--source-update` fully regenerates `.terragrunt-stack`, matching source-refresh behaviour for `.terragrunt-cache`.