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

Evaluation results

100%

32%

Product Lookup API Lambda Handler

Lambda handler structure and error handling

Criteria

Without context

With context

Client init outside handler

100%

callbackWaitsForEmptyEventLoop

100%

Safe body parsing

100%

Response statusCode field

100%

Content-Type header

100%

CORS header

100%

Body is JSON string

100%

Structured error logging

16%

100%

Error statusCode fallback

100%

Error body format

100%

Without context: $0.2814 · 1m 13s · 14 turns · 62 in / 3,945 out tokens

With context: $0.3004 · 1m 1s · 15 turns · 63 in / 3,102 out tokens

100%

27%

Serverless Inventory Management API

SAM template structure and HTTP API configuration

Criteria

Without context

With context

SAM transform header

100%

HTTP API resource type

100%

Runtime: nodejs20.x

100%

Timeout: 30

100%

MemorySize: 256

100%

Globals section used

100%

DynamoDB PAY_PER_REQUEST

100%

Read policy for read function

100%

CRUD policy for write function

100%

CORS configuration on HTTP API

100%

Without context: $0.2546 · 1m · 12 turns · 13 in / 3,219 out tokens

With context: $0.5158 · 1m 54s · 24 turns · 270 in / 5,853 out tokens

100%

10%

Order Notification Processing Pipeline

SQS batch processing with partial failure handling

Criteria

Without context

With context

BatchSize: 10

100%

ReportBatchItemFailures

100%

VisibilityTimeout 6x timeout

100%

DLQ configured

100%

maxReceiveCount: 3

100%

DLQ retention 14 days

100%

SDK init outside handler

100%

Per-record try/catch

100%

batchItemFailures accumulator

100%

Returns batchItemFailures

100%

Without context: $0.2204 · 52s · 11 turns · 60 in / 2,860 out tokens

With context: $0.4657 · 1m 21s · 22 turns · 70 in / 4,605 out tokens

Evaluated: 6 days ago
Agent: Claude Code
Model: Claude Sonnet 4.6

Table of Contents

Product Lookup API Lambda Handler Serverless Inventory Management API Order Notification Processing Pipeline

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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.