The body is lean and assumes Claude's competence — no generic concept teaching (what Terraform/AWS is), and the length reflects project-specific decisions and subtle gotchas where every token earns its place, fitting the 'lean and efficient' anchor.

Provides concrete executable commands and paths — 'terraform validate', 'tflint', 'checkov -d .', 'yamldecode(file(...))', the cross-platform uv install invocation, and 'terraform init -backend-config=backend.hcl' — making guidance copy-paste ready rather than abstract.

An 8-step numbered workflow with an explicit validation gate (step 7 'this is a CI gate, not optional' and step 8 re-read confirmation) and clearly sequenced prerequisites matches the anchor for clear sequence with explicit validation steps.

References are one level deep and clearly signaled with specific section pointers (architecture.md §5.1, requirements.md), with no nested reference chains; the multi-section body is well organized for navigation.

Lists multiple concrete actions — 'Scaffolds or extends a Terraform module', 'wired to input.yaml', 'tagged per the cost-allocation strategy', 'following least-privilege IAM' — matching the anchor for multiple specific concrete actions rather than the partial coverage of a 2.

Explicitly answers both what the skill does and when to use it via an explicit 'Use when...' clause with concrete triggers, so it is not capped at 2 by a missing trigger clause.

Includes natural phrases a user would actually say ('create a Terraform module', 'provision the VPC/Aurora/Lambda/Cognito', 'add infrastructure for', Terraform/IaC/AWS provisioning), giving good coverage of common variations rather than only a few.

Scoped to 'this project's AWS infrastructure' with specific layer names and Terraform/IaC triggers, making it a clear niche unlikely to trigger for unrelated skills.