AWS SAM and AWS CDK deployment for serverless applications. Triggers on phrases like: use SAM, SAM template, SAM init, SAM deploy, CDK serverless, CDK Lambda construct, NodejsFunction, PythonFunction, SAM and CDK together, serverless CI/CD pipeline. For general app deployment with service selection, use deploy-on-aws…
Gets AWS credentials for CLI/SDK access via aws login. Activates when a developer needs to authenticate to AWS for local development, when an AWS operation fails due to missing or expired credentials, or when someone asks about setting up AWS access. Triggers: "set up AWS", "configure AWS", "aws login", "get…
Use when upgrading a Java service to the latest Java LTS (target newest — e.g. Java 25; fall back to 21/17 only if a dependency blocks it), performing the associated framework upgrade (Spring Boot 2→3, javax→jakarta), and containerising the result for ECS/EKS. Covers upgrade tooling (OpenRewrite, jdeps, jdeprscan…
Use when planning or writing a behaviour-first regression safety net BEFORE a major change — a Java/JDK version upgrade, a framework migration (e.g. Spring Boot 2→3, AngularJS→React), a runtime change, or a large refactor. Prioritises tests that validate observable external behaviour (API contracts, E2E flows, pure…
Use when designing, choosing tools for, or writing automated tests for web applications — E2E and UI tests, visual regression, web accessibility (axe-core), API testing inside browser flows, flaky-test debugging, page object model, and CI integration. Playwright-first, with Cypress and Selenium guidance and migration…
Guidance for building modern, maintainable, accessible Android apps. Use when designing UI, structuring app modules, or reviewing Jetpack Compose code.
Guidance for serverless backend infrastructure (Lambda, Step Functions, API Gateway, S3, DynamoDB, Cognito, Textract, Bedrock). Use when designing or reviewing serverless systems.
How to think about and write correctness properties and property-based tests. Use when defining properties in design docs or implementing property tests.
Use when designing, choosing tools for, or writing automated tests for mobile apps — native iOS, native Android, React Native, and Flutter. Covers Appium, Maestro, Detox, Espresso, XCUITest, emulator/simulator vs real device strategy, device farms (AWS Device Farm, BrowserStack, Sauce Labs), gestures, deep links…
Designs, reviews, and debugs DynamoDB data layers from design axioms — enumerates access patterns, chooses partition/sort keys and GSIs, decides single-table vs. multi-table, configures Streams, Global Tables, TTL, and zero-ETL integrations to OpenSearch/Redshift/SageMaker Lakehouse, and produces a defensible…
Guides general use of AWS messaging and streaming services. Covers Amazon SQS, Amazon SNS, Amazon EventBridge, Amazon MQ, Amazon Kinesis Data Streams, Amazon Data Firehose, Amazon Managed Service for Apache Flink, and Amazon Managed Streaming for Apache Kafka (MSK). Use when reasoning about messaging and streaming…
Use when authoring automated tests for .NET / C# code — unit tests, integration tests, mocking collaborators, and code coverage. Covers choosing a framework, structuring test projects, writing focused tests that map to requirements, and gating merges to keep trunk green. Triggers on .NET test, C# test, xUnit, NUnit…
A companion steering file for systems whose code spans more than one repository — for example a separate frontend repo and backend repo for one app, or several service repos plus a shared contracts repo. It adds a repo-model decision gate at the start, and — when the system is multi-repo — a two-level flow that…
A companion steering file that adds a lightweight Practices Discovery step at the start of the workflow that captures the team's practices — discover → capture → the workflow honors them for the rest of the engagement. Kept deliberately light for a 3-day workshop. The captured file becomes steering the agent respects…
Best practices for building a Nova Sonic speech-to-speech voice agent on AWS. Covers (1) when to choose Nova Sonic over a STT→LLM→TTS pipeline, (2) voice-first system prompt design, (3) tool calling for voice, (4) conversation UX patterns (barge-in, confirmation, disfluencies), and (5) common pitfalls. TRIGGER when…
Optimize a Nova Sonic voice agent for low latency, cost, and reliability on AWS. Covers (1) measuring end-to-end and per-segment latency, (2) same-region deployment and network path tuning, (3) streaming inference and tool-call patterns that hide latency, (4) cost levers (provisioned vs on-demand, voice pricing), and…
Migrate any text-based agent to a Nova Sonic voice agent using Strands BidiAgent. Covers two layers: (1) Frontend — browser WebSocket client with Web Audio API for mic capture and audio playback, (2) Orchestrator — FastAPI + Strands BidiAgent server that takes the text agent's system prompt and tools and runs them as…
Builds, runs, debugs, and operates applications on AWS Lambda MicroVMs — Firecracker-isolated, snapshot-resumable serverless compute environments running inside a container with up to 8 hr lifetimes. Applicable when workloads need strong isolation between tenants, isolated serverless compute, sandbox compute, or…
Authors and edits AWS Step Functions state machines: writes Amazon States Language (ASL) in JSONata, and chooses and structures state types (Task, Choice, Map, Parallel, Pass, Wait, Succeed, Fail). Covers ASL syntax, JSONata data transformation and variables, Retry/Catch error handling, service integrations (.sync…
Remediate security vulnerabilities in Node.js/npm projects — map a CVE to the offending package and fixed version, choose between a direct bump, a transitive-dependency override, or a code change, assess semver/breaking-change risk, update the lockfile, and verify the fix didn't break anything. Triggers on phrases…
Locate GitLab vulnerability reports and deliver remediations back to GitLab — branch/commit strategy, raising merge requests via glab CLI, the GitLab REST API, or a GitLab MCP, MR descriptions that carry the triage rationale, and optional write-back of dispositions (dismiss/comment findings). Triggers on phrases like…
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