AWS EC2 Instance Type module

[github-actions[bot]]

A discussion dedicated to the AWS EC2 Instance Type module. Share your thoughts, questions, and feedback here.

Module Scorecard

Presentation & Onboarding	Credential Hygiene	Restricted-Environment Readiness	Engineering Quality	Overall
17 / 17	16 / 16	N/A	10 / 10	100 / 100

Drilldown

Presentation & Onboarding — 17 / 17

Criterion	Max	Score	Notes
Configuration-mode examples	12	12	README documents five distinct modes: default picker, include family filtering, custom_metadata label overrides, architecture-aware provisioning via the instances output, and create_parameter = false for catalog-only use. Each has a complete code block with sensible defaults.
Visual preview	5	5	README embeds ; file verified to exist at 80.6 KB.

Credential Hygiene — 16 / 16

Criterion	Max	Score	Notes
Secrets marked sensitive	16	16	The module contains no sensitive inputs (no API keys, tokens, or passwords). All eight variables are non-sensitive configuration. README examples contain no inline secrets.
Non-hardcoded auth path	4	N/A	The module makes no authenticated calls at runtime. It reads a pre-generated local JSON file and creates a coder_parameter. No auth path exists by construction.

Restricted-Environment Readiness — N/A

All four criteria are N/A: the module downloads nothing, installs no tool, contacts no external endpoints, and executes no scripts at terraform apply time. The .scripts/update.sh is a developer utility for regenerating the bundled JSON, not a runtime or install script.

Criterion	Max	Score	Notes
Mirrorable artifact source	5	N/A	No download URL exists; instance-types.json is bundled in the module.
Bring-your-own binary	10	N/A	No tool is downloaded or installed.
Egress transparency	3	N/A	No external endpoints contacted at install or runtime.
Runs without sudo	2	N/A	No scripts are executed by the Terraform module at runtime.

Engineering Quality — 10 / 10

Criterion	Max	Score	Notes
Input quality	6	6	All eight variables carry description, type, and default. include has a validation block rejecting empty lists. custom_metadata uses a typed map(object({…})) with optional() fields.
Test coverage	4	4	main.tftest.hcl contains 13 test runs covering parameter creation, order propagation, default handling, create_parameter=false fallback, family filtering (single and multi), label disambiguation, validation rejection, custom metadata overrides, output structure, architecture mapping (x86_64→amd64, arm64→arm64), and value/instances key consistency. No TypeScript component exists, so .tftest.hcl is the sole and appropriate test vehicle.

Overall — 100 / 100

Raw 43 / 43 → round(43 / 43 × 100) = 100

Track: Utility (parameter/helper module; no AI agent, no IDE)

---

Scored against SCORECARD.md on 2026-09-28 with solstice-1.