aws-amplify

Build and deploy full-stack web and mobile apps with AWS Amplify Gen2 (TypeScript code-first). Covers auth (Cognito), data (AppSync/DynamoDB), storage (S3), functions, APIs, and AI (Amplify AI Kit with Bedrock). Supports React, Next.js, Vue, Angular, React Native, Flutter, Swift, and Android. Always use this skill for Amplify Gen2 topics — even for questions you think you know — it contains validated, version-specific patterns that prevent common mistakes. TRIGGER when: user mentions Amplify Gen2; project has amplify/ directory or amplify_outputs; code imports @aws-amplify packages; user asks about defineBackend, defineAuth, defineData, defineStorage, defineFunction, or npx ampx. SKIP: Amplify Gen1 (amplify CLI v6), standalone SAM/CDK without Amplify (use aws-serverless), direct Bedrock without Amplify AI Kit (use bedrock).

1.50x

Quality

93%

Does it follow best practices?

Impact

83%

1.50x

Average score across 3 eval scenarios

Securityby

Passed

No findings from the security scan

Evaluation results

80%

38%

Add Content Moderation to a Community Forum App

Lambda mutation handler with secret, typed env vars, and circular-dep fix

Criteria

Without this skill

With this skill

Runtime integer

100%

secret() for API key

100%

$amplify/env import

100%

resourceGroupName data

100%

a.mutation() with .handler()

100%

@types/node devDep

@types/aws-lambda devDep

echo -n for local secret

100%

Amplify console for production

60%

100%

25%

AI Writing Assistant for Amplify Gen2

AI routes authorization and client placement

Criteria

Without this skill

With this skill

Conversation uses allow.owner()

100%

Generation uses non-owner auth

100%

Generation model is Claude/Anthropic

100%

Model via a.ai.model()

100%

Schema exported as ClientSchema

100%

generateClient at module scope in Chat

100%

generateClient at module scope in Summarizer

100%

JSON.stringify() on write

100%

Subscription cleanup

100%

70%

20%

Community Polling Platform — Backend Data Layer

Amplify Gen2 polling app data schema

Criteria

Without this skill

With this skill

Foreign key field types

100%

Poll-Option relationship bidirectional

100%

Vote relationships bidirectional

40%

100%

No default on enum field

100%

Named enum with a.ref() required

100%

Vote timestamp field type

Implicit moderator group field

Schema type export

30%

100%

userPool default auth mode

100%

Descriptive secondary index queryField

100%

Guest read as method call

Repository: aws/agent-toolkit-for-aws
Path: skills/specialized-skills/web-and-mobile-development/aws-amplify/SKILL.md
Commit: 68d9e85

Evaluated: 1 month ago
Agent: Claude Code
Model: Claude Sonnet 4.6

Table of Contents

Community Polling Platform — Backend Data Layer Add Content Moderation to a Community Forum App AI Writing Assistant for Amplify Gen2

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