aws-serverless

Specialized skill for building production-ready serverless applications on AWS. Covers Lambda functions, API Gateway, DynamoDB, SQS/SNS event-driven patterns, SAM/CDK deployment, and cold start optimization.

Quality

52%

Does it follow best practices?

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Securityby

Passed

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tessl review fix ./.agent/skills/aws-serverless/SKILL.md

Quality

Content

22%

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

This SKILL.md is essentially an empty index page that delegates everything to sub-skill files that cannot be verified. It provides no actionable content, no code examples, no workflow guidance, and no overview of AWS serverless concepts or decision-making frameworks. The description promises coverage of Lambda, API Gateway, DynamoDB, SQS/SNS, SAM/CDK, and cold start optimization, but the body delivers none of this.

Suggestions

Add a concise quick-start section with at least one executable Lambda handler example and a SAM/CDK deployment command so the skill is immediately actionable.

Include a brief workflow or decision tree showing when to use each pattern (e.g., API Gateway for REST endpoints, SQS for async processing) to provide workflow clarity.

Add a summary paragraph or table describing what each sub-skill covers and when to reference it, rather than just listing bare links.

Include at least one anti-pattern inline (e.g., monolithic Lambda) with a concrete 'instead do this' code snippet so the main file has standalone value.

Dimension	Reasoning	Score
Conciseness	The content is very short and doesn't waste tokens on unnecessary explanations, but it's so sparse that it's essentially just a table of contents with no actionable content in the main file itself. The emoji usage and 'Fractal Skills' label add no value.	2 / 3
Actionability	The SKILL.md provides zero concrete guidance, no code, no commands, and no examples. It is entirely a list of links to sub-skills with no executable or instructional content whatsoever.	1 / 3
Workflow Clarity	There is no workflow, no sequencing, no validation steps, and no indication of how these patterns relate to each other or when to use them. For a skill covering Lambda, API Gateway, DynamoDB, SQS/SNS, SAM/CDK deployment, and cold start optimization, the complete absence of any workflow or process guidance is a significant gap.	1 / 3
Progressive Disclosure	The skill does attempt progressive disclosure by linking to sub-skills, but no bundle files are provided to verify these references exist. The main file lacks any overview content, quick-start guidance, or context that would make the references useful — it's just bare links with no framing or navigation cues beyond the link titles.	2 / 3
	Total	6 / 12 Passed

Description

82%

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

This description excels at specificity and trigger term coverage, listing numerous concrete AWS serverless technologies and patterns that users would naturally reference. Its main weakness is the absence of an explicit 'Use when...' clause, which means Claude must infer when to select this skill rather than having clear trigger guidance. Adding explicit usage triggers would elevate this from a good to excellent description.

Suggestions

Add an explicit 'Use when...' clause, e.g., 'Use when the user asks about building serverless apps on AWS, deploying Lambda functions, configuring API Gateway, or optimizing cold starts.'

Consider adding file extension or framework triggers like '.yaml SAM templates', 'serverless.yml', or 'CDK stacks' to capture more natural user phrasing.

Dimension	Reasoning	Score
Specificity	Lists multiple specific concrete actions and technologies: Lambda functions, API Gateway, DynamoDB, SQS/SNS event-driven patterns, SAM/CDK deployment, and cold start optimization. These are concrete, identifiable capabilities.	3 / 3
Completeness	Clearly answers 'what does this do' with specific AWS serverless capabilities, but lacks an explicit 'Use when...' clause or equivalent trigger guidance. The 'when' is only implied by the technology names listed.	2 / 3
Trigger Term Quality	Includes strong natural keywords users would say: 'serverless', 'AWS', 'Lambda', 'API Gateway', 'DynamoDB', 'SQS', 'SNS', 'SAM', 'CDK', 'cold start', 'event-driven'. These cover a wide range of terms a user would naturally use when needing this skill.	3 / 3
Distinctiveness Conflict Risk	Highly distinctive with a clear niche: AWS serverless applications specifically. The combination of Lambda, API Gateway, DynamoDB, SAM/CDK, and cold start optimization creates a very specific domain unlikely to conflict with other skills.	3 / 3
	Total	11 / 12 Passed

Validation

90%

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 — 10 / 11 Passed

Validation for skill structure

Criteria	Description	Result
frontmatter_unknown_keys	Unknown frontmatter key(s) found; consider removing or moving to metadata	Warning

	Total	10 / 11 Passed

Repository: Dokhacgiakhoa/antigravity-ide
Path: .agent/skills/aws-serverless/SKILL.md
Commit: c4a059b

Reviewed: 1 day ago

Table of Contents

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