--- title: "Terraform style guide: review, setup & limitations · Undominated.ai" canonical: https://undominated.ai/skills/hashicorp-terraform-style-guide/ description: "Applies Terraform HCL organization, naming, variable documentation and formatting conventions." --- # Terraform style guide: review, setup & limitations · Undominated.ai > Applies Terraform HCL organization, naming, variable documentation and formatting conventions. [← Explore all skills](/skills/) DEVELOPMENT WORKFLOW / HashiCorp # Terraform style guide Applies Terraform HCL organization, naming, variable documentation and formatting conventions. [See setup guidance ↓](#setup)[Original source ↗](https://github.com/hashicorp/agent-skills/tree/f706481af9b8fedb66de909f6243ad29601afa0c/plugins/terraform/skills/terraform-style-guide) SOURCE REVIEW Reviewed 2026-10-07 Evidence 3 linked sources Publisher HashiCorp Licence [MPL-2.0 ↗](https://github.com/hashicorp/agent-skills/blob/f706481af9b8fedb66de909f6243ad29601afa0c/LICENSE) Revision f706481af9b8 [Read what was—and wasn’t—checked ↓](#review) “Generate Terraform HCL code following HashiCorp's official style conventions and best practices. Use when writing, reviewing, or generating Terraform configurations.” [HashiCorp · upstream description ↗](https://github.com/hashicorp/agent-skills/blob/f706481af9b8fedb66de909f6243ad29601afa0c/plugins/terraform/skills/terraform-style-guide/SKILL.md) Our analysis follows below. 01 / THE REASONING ## Why this made the selection. - Shows separation of providers, variables, resources and outputs, with sensitivity and version-control guidance. - Ends with formatting and validation checks while preserving dependency-lock and module constraints. ### A good fit for - Reviewing generated HCL before commit - Matching an existing module to HashiCorp conventions ### Weigh up before choosing - The resource snippets omit project-specific required values and are not deployment-ready. Suggested versions and latest-provider guidance do not authorize an upgrade. - Reviewed definition and licence are pinned; installation and real-task outcomes for this resource were not tested. 02 / THE REVIEW RECORD ## What we actually inspected. Source review has boundaries. A clear record is more useful than a “safe” badge. ### Material inspected - plugins/terraform/skills/terraform-style-guide/SKILL.md (complete frontmatter and body) - https://github.com/hashicorp/agent-skills/blob/f706481af9b8fedb66de909f6243ad29601afa0c/LICENSE (applicable licence text) ### Our findings - Shows separation of providers, variables, resources and outputs, with sensitivity and version-control guidance. - Ends with formatting and validation checks while preserving dependency-lock and module constraints. - Writes and formats Terraform files and invokes validation; any later plan or apply uses the host account and provider permissions. ### Not established by this review - Host discovery, task execution and model quality were not tested. - Referenced helpers, sibling plugins and external service operations were not exhaustively audited or executed. The review applies to the material and revision named here. A newer upstream release can change its behavior. 03 / PUT IT TO WORK ## Add a skill to your workflow. [Upstream setup instructions ↗](https://github.com/hashicorp/agent-skills/blob/f706481af9b8fedb66de909f6243ad29601afa0c/README.md) DOCUMENTED COMMAND npx skills@1.7.1 add https://github.com/hashicorp/agent-skills/tree/f706481af9b8fedb66de909f6243ad29601afa0c/plugins/terraform/skills/terraform-style-guide --skill terraform-style-guide Copy command ↗ Copying does not execute this command. It may retrieve a newer version than the reviewed source. - Use the exact reviewed directory/revision and select the intended host/project scope in Skills CLI. - Retain all supporting files; separately configure companion skills, runtimes and service credentials named in the definition. - Review the resulting diff and use an isolated target before any migration, deployment, load test or warehouse operation. ### Before you start - Terraform and the project provider dependencies; preserve the existing lockfile and supported version policy. ### Compatibility Agent Skills-compatible hosts ### Host-mediated code, files and tools - Writes and formats Terraform files and invokes validation; any later plan or apply uses the host account and provider permissions. - The host enforces permissions; installing instructions does not itself create a sandbox. ### Cost model Source is available under the stated licence. Model usage, compute and connected services can incur charges. 04 / FOLLOW THE EVIDENCE ## The source trail. Our notes are separate from the original resource. Check upstream before adopting a new version. - [Skill definition ↗](https://github.com/hashicorp/agent-skills/blob/f706481af9b8fedb66de909f6243ad29601afa0c/plugins/terraform/skills/terraform-style-guide/SKILL.md) Checked 2026-10-07 https://github.com/hashicorp/agent-skills/blob/f706481af9b8fedb66de909f6243ad29601afa0c/plugins/terraform/skills/terraform-style-guide/SKILL.md Supports: summary, whySelected, limitations, access, review - [Repository licence ↗](https://github.com/hashicorp/agent-skills/blob/f706481af9b8fedb66de909f6243ad29601afa0c/LICENSE) Checked 2026-10-07 https://github.com/hashicorp/agent-skills/blob/f706481af9b8fedb66de909f6243ad29601afa0c/LICENSE Supports: Redistribution terms - [Install instructions ↗](https://github.com/hashicorp/agent-skills/blob/f706481af9b8fedb66de909f6243ad29601afa0c/README.md) Checked 2026-10-07 https://github.com/hashicorp/agent-skills/blob/f706481af9b8fedb66de909f6243ad29601afa0c/README.md Supports: Documented install path KEEP COMPARING ## Other approaches to consider. Related by category or shared topics. These are alternatives to inspect, not a measured quality order. [### API and Interface Design ↗ Designs stable API contracts, consistent errors and retry-safe idempotency behavior.](/skills/addyosmani-api-and-interface-design/)[### Constraint-driven development ↗ Records project quality constraints with measured baselines, enforcement commands and reviewable exceptions.](/skills/addyosmani-constraint-driven-development/)[### Dispatching Parallel Agents ↗ Splits independent investigations into bounded agent assignments and checks their integration afterward.](/skills/obra-dispatching-parallel-agents/) [AI Tools ↗](/tools/)[Skills ↗](/skills/)[Agents ↗](/agents/)[MCP Servers ↗](/mcp-servers/)[Workflows ↗](/workflows/) ## Continue your investigation - [Choose a toolkit](/tools/) - [Inspect execution hosts](/agents/) - [Check tool access](/mcp-servers/) - [Check project dependencies](/check-repo/)