cost-optimization

Optimize cloud costs through resource rightsizing, tagging strategies, reserved instances, and spending analysis. Use when reducing cloud expenses, analyzing infrastructure costs, or implementing cost governance policies.

Quality

70%

Does it follow best practices?

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Securityby

Passed

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tessl review fix ./skills/cost-optimization/SKILL.md

Quality

Content

57%Weight 40%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

A well-organized reference with executable Terraform examples and concrete savings figures, but it carries generic padding, lacks validation checkpoints for destructive rightsizing operations, and inlines provider-specific detail that would benefit from progressive disclosure.

Suggestions

Remove the generic 'Instructions' and 'Purpose' boilerplate and let the description plus framework carry intent, tightening conciseness.

Add an explicit validation/verification step (e.g., confirm utilization metrics before downsizing, re-check spend after changes) to the Right-Sizing and idle-removal workflow.

Split the AWS/Azure/GCP sections into separate reference files referenced from SKILL.md to improve progressive disclosure and token efficiency.

Dimension	Reasoning	Score
Conciseness	Mostly efficient bullet lists and code blocks, but the generic 'Instructions' section ('Clarify goals... Apply relevant best practices...') and redundant 'Purpose'/'Use this skill when' sections add padding Claude does not need.	3 / 5
Actionability	Provides copy-paste-ready Terraform for S3 lifecycle, tagging, budget alerts, and autoscaling plus concrete savings percentages, with only minor gaps such as missing commands for actually invoking cost tools.	4 / 5
Workflow Clarity	The four-step framework (Visibility, Right-Sizing, Pricing, Architecture) is sequenced and a checklist exists, but rightsizing and idle-resource removal are destructive/batch operations with no explicit validation or verify-fix-retry checkpoint, capping the score at 3.	3 / 5
Progressive Disclosure	Sections are well-organized with clear headers, but the ~280-line body inlines per-provider detail (AWS/Azure/GCP) that could live in separate reference files, and no bundle references are signaled.	3 / 5
	Total	13 / 20 Passed

Description

83%Weight 40%Scale 1-5

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

A strong description that explicitly states concrete capabilities and clear use-when triggers in third person. It is comprehensive on completeness with only minor gaps in specificity and trigger synonym coverage.

Dimension	Reasoning	Score
Specificity	Names four concrete actions — 'resource rightsizing, tagging strategies, reserved instances, and spending analysis' — giving solid coverage, though it omits techniques detailed in the body (anomaly detection, lifecycle policies), keeping it just below a 5.	4 / 5
Completeness	Clearly answers both what ('Optimize cloud costs through...') and when ('Use when reducing cloud expenses, analyzing infrastructure costs, or implementing cost governance policies') with concrete trigger phrases.	5 / 5
Trigger Term Quality	'reducing cloud expenses, analyzing infrastructure costs, or implementing cost governance policies' are natural user phrases with good coverage, but it misses common synonyms like 'lower my AWS bill' or 'cut spending'.	4 / 5
Distinctiveness Conflict Risk	'Optimize cloud costs' is a clear niche with distinct triggers and minimal conflict risk, though it could overlap slightly with general cloud-architecture or FinOps skills.	4 / 5
	Total	17 / 20 Passed

Validation

100%

Warnings & errors only

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation — 16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository: rmyndharis/antigravity-skills
Path: skills/cost-optimization/SKILL.md
Commit: 3eff4af

Reviewed: 1 day ago

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