cloud-serverless-designer_skill

Overview

This skill designs serverless function deployments across AWS Lambda, Azure Functions, and Google Cloud Functions. It produces platform-specific function definitions, event source mappings, IAM or identity configurations, and optimizations for cold start and cost. The skill supports basic (T1), production-ready (T2), and advanced orchestration (T3) outputs tailored to your inputs and validation rules.

How this skill works

Given the cloud_provider, runtime, trigger_type, memory_mb, and timeout_seconds, the skill validates inputs against provider limits and supported runtimes. It generates required artifacts: function configuration, event source wiring, deployment commands, and—at higher tiers—least-privilege IAM/managed identity, VPC settings, cold-start optimizations, and CI/CD or orchestration templates. Outputs follow a clear contract (function_config, event_source, deployment_command) and expand with iam_policy, vpc_config, cold_start_optimization, cost_estimate, orchestration, CI/CD, and observability sections when requested.

When to use it

• Design event-driven architectures or convert app logic to serverless functions
• Configure triggers and event sources for new or migrated workloads
• Create production-ready deployments with least-privilege IAM and VPC access
• Optimize functions for cold starts, package size, and concurrency
• Generate deployment templates (SAM/Serverless/GCloud) and CI/CD pipelines

Best practices

• Validate runtime and trigger compatibility before generating artifacts
• Apply least-privilege IAM or managed identities and avoid hardcoded secrets
• Start with 512 MB if memory unspecified, then load-test to right-size
• Minimize package size and use layers or dependency separation to reduce cold starts
• Use provisioned concurrency or platform-specific features for latency-sensitive paths
• Configure DLQs, logging retention, and alarms for error/throttle monitoring

Example use cases

• T1: Generate AWS Lambda SAM function + API Gateway mapping for a simple HTTP API
• T2: Produce SAM template with IAM policy, VPC config, provisioned concurrency, and cost estimate for production
• T2: Create Azure Function with managed identity, Timer trigger, and encrypted environment placeholders
• T3: Design Step Functions workflow chaining multiple Lambdas with retries and observability
• T3: Produce GitHub Actions pipeline for canary deployment and automated integration tests