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 opt...

Install with Tessl CLI

npx tessl i github:sickn33/antigravity-awesome-skills --skill aws-serverless

What are skills?

1.29x

Quality

60%

Does it follow best practices?

Impact

100%

1.29x

Average score across 3 eval scenarios

Optimize this skill with Tessl

npx tessl skill review --optimize ./skills/aws-serverless/SKILL.md

SKILL.md

Review

Evals

Discovery

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 is a strong description with excellent specificity and trigger term coverage for AWS serverless development. The main weakness is the missing explicit 'Use when...' clause and the apparent truncation. Adding explicit trigger guidance would make this description complete.

Suggestions

Add a 'Use when...' clause with trigger phrases like 'Use when building serverless applications, deploying to AWS Lambda, or working with event-driven architectures'

Complete the truncated text (appears cut off at 'cold start opt...') to ensure full capability coverage

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 specific, actionable capabilities.	3 / 3
Completeness	Clearly describes WHAT it does (building serverless apps with specific AWS services), but lacks an explicit 'Use when...' clause or equivalent trigger guidance. The description appears truncated ('opt...').	2 / 3
Trigger Term Quality	Includes strong natural keywords users would say: 'serverless', 'AWS', 'Lambda', 'API Gateway', 'DynamoDB', 'SQS', 'SNS', 'SAM', 'CDK', 'cold start'. These cover common terminology developers use when discussing serverless architecture.	3 / 3
Distinctiveness Conflict Risk	Highly distinctive with clear AWS serverless focus. The specific service names (Lambda, API Gateway, DynamoDB, SQS/SNS, SAM/CDK) create a clear niche that wouldn't conflict with general coding or other cloud provider skills.	3 / 3
	Total	11 / 12 Passed

Implementation

37%

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

This skill has a solid structural foundation with useful serverless patterns, but suffers from significant quality issues: truncated code examples that end mid-implementation, a completely broken Sharp Edges table with placeholder text, and no deployment workflow guidance. The content shows promise but appears incomplete or corrupted.

Suggestions

Complete all truncated code blocks - the Python handler, get.js, and SQS processor examples all cut off mid-implementation, making them unusable

Fix the Sharp Edges table - currently shows 'Issue' placeholders instead of actual issues like 'Cold starts', 'Timeout configuration', 'Memory allocation'

Add a deployment workflow section with clear steps: 1. sam validate, 2. sam build, 3. sam local invoke (test), 4. sam deploy --guided

Either remove duplicate language examples (Node.js + Python for each pattern) or split into separate reference files to improve conciseness

Dimension	Reasoning	Score
Conciseness	The skill provides useful code examples without excessive explanation of basic concepts, but includes some redundancy (both Node.js and Python versions for each pattern) and several code blocks are truncated mid-implementation, wasting tokens on incomplete content.	2 / 3
Actionability	Contains concrete, executable code patterns for Lambda handlers and SAM templates, but multiple code blocks are cut off mid-implementation (Python handler, get.js, SQS processor), making them not copy-paste ready. The Sharp Edges table is malformed with placeholder 'Issue' text instead of actual issues.	2 / 3
Workflow Clarity	No clear deployment workflow or validation steps are provided. The skill shows code patterns but lacks sequenced instructions for deploying, testing, or validating serverless applications. Missing critical checkpoints like 'sam validate', 'sam build', 'sam deploy' sequence.	1 / 3
Progressive Disclosure	Content is organized into logical sections (Patterns, Anti-Patterns, Sharp Edges), but everything is in one monolithic file. No references to separate files for detailed topics like cold start optimization, DynamoDB patterns, or deployment guides that the description mentions.	2 / 3
	Total	7 / 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

Reviewed: about 5 hours ago

Table of Contents

Discovery Implementation Validation

Is this your skill?

If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.