---
title: "React & React Native Blog | AI Engineering | Callstack"
description: "Read practical articles on React, React Native, cross-platform development, and AI workflows from Callstack engineers building the tools and products."
url: https://www.callstack.com/blog
updated: 2026-11-06T10:13:51.208Z
---

# React & React Native Blog | AI Engineering | Callstack

Read practical articles on React, React Native, cross-platform development, and AI workflows from Callstack engineers building the tools and products.

Articles

## Articles for developers, by developers

Technical articles on React, React Native, and AI engineering. We share what we learn from building products, maintaining open source, and putting agents to work across software delivery.

### Featured

- [Building a Software Factory: Write Specs an Agent Can Build From](https://www.callstack.com/blog/building-a-software-factory-write-specs-an-agent-can-build-from) (AI, 11/6/2026): Szymon Chmal uses a Simlock device-cleanup feature to explain how he plans work for coding agents. Follow the process from code research and product decisions to testable tasks, independent specification checks, and human approval. (by Szymon Chmal)

### Articles

- [ Large-Scale Migrations With Coding Agents: Planning, Verification, and Rollback](https://www.callstack.com/blog/large-scale-migrations-with-coding-agents-planning-verification-and-rollback) (AI, 11/4/2026): Organize a large-scale codebase migration around documented requirements, scoped agent tasks, and human review. This article covers verification, telemetry, staged rollout, and rollback criteria. (by Hur Ali)
- [Conversational Banking: From Customer Questions to Authorized Actions](https://www.callstack.com/blog/conversational-banking-from-customer-questions-to-authorized-actions) (AI, 11/2/2026): How does a banking assistant turn a customer’s question into an authorized action? Follow an unfamiliar payment from transaction lookup to card freeze and specialist handoff, exploring how models, banking services, and human teams work together and what the bank needs to control at each step. (by Paweł Sawicki)
- [How AI Agents Can Cut Manual QA by 30%](https://www.callstack.com/blog/how-ai-agents-can-cut-manual-qa-by-30) (Testing, 10/30/2026): Two days waiting for QA can turn a small fix into another round of rebasing and context switching. See how a workflow using AI agents could cut manual QA effort by 30% across mobile, web, and TV, and learn how to validate the gains. (by Karol Latusek)
- [Building a Software Factory: The Night My Agents Waited for Me](https://www.callstack.com/blog/building-a-software-factory-the-night-my-agents-waited-for-me) (AI, 10/28/2026): Two coding agents worked overnight on Simlock and ended up waiting for their maintainer. This article examines the questions that stopped them and the workflow changes that followed, from recurring permissions and review limits to product choices agents can make provisionally for human review. (by Szymon Chmal)
- [Your AI Coding Agent Still Needs an Architecture](https://www.callstack.com/blog/your-ai-coding-agent-still-needs-an-architecture) (AI, 10/22/2026): AI coding agents make implementation decisions about logic, dependencies, and shared behavior. A favorites feature illustrates how explicit contracts, gradual migration, behavior tests, and automated dependency checks give engineers a basis for reviewing those decisions. (by Szymon Chmal)
- [Give QA Agents the Controls They Need With Appduct](https://www.callstack.com/blog/give-qa-agents-the-controls-they-need-with-appduct) (Testing, 10/20/2026): Appduct lets AI QA agents call functions registered by your team inside a running app. This article illustrates how an adjustable app clock and a simulated invitation event can prepare conditions for UI checks. (by Szymon Chmal)
- [Multi-Window React Native Apps With the Meta VR Layout SDK](https://www.callstack.com/blog/multi-window-react-native-apps-with-the-meta-vr-layout-sdk) (Virtual Reality, 10/15/2026): Add a second Quest window to your existing React Native tree without creating another Android activity. Follow a Meta VR Layout SDK companion-panel demo covering setup, shared state, window positioning, fallbacks, and testing with Meta Spatial Simulator. (by Tomasz Włodarczyk)
- [Agentic Mobile Testing With e2e and agent-device](https://www.callstack.com/blog/agentic-mobile-testing-with-e2e-and-agent-device) (Testing, 10/13/2026): TesterArmy's e2e uses agent-device to drive mobile tests on iOS and Android. This article walks through goal-based actions, deterministic checks, the mobile engine, and replay caching, then shows how to initialize a test setup. Cached agent.act steps skip model calls; agent.assert continues to evaluate the current screen. (by Michał Pierzchala)
- [How to Maximize AI SDLC? Measure the Outer Business Loop, Not the Inner Developer Loop](https://www.callstack.com/blog/how-to-maximize-ai-sdlc-measure-the-outer-business-loop-not-the-inner-developer-loop) (AI, 10/9/2026): Matt Hargett explains how to measure AI-assisted development through the Outer Business Loop, which follows a change from its initial hypothesis to its effect on users and the business. An online platform optimization anchors his systems thinking approach to checking feature exposure, investigating mixed results, and calculating the holistic end-to-end cost of a measurable improvement. (by Matt Hargett)
- [Building Reliable AI Figma-to-Code Loops](https://www.callstack.com/blog/building-reliable-ai-design-to-code-loops) (AI, 10/8/2026): AI-generated screens can match a Figma design while bypassing your component library. Vitaly Kuprin explains how his team built a workflow that guides agents toward existing components, blocks unsupported imports, and compares rendered screens with the design. He also shares the checks that caught misleading screenshot results and the limits of visual verification. (by Vitaly Kuprin)

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## Your next read or watch starts here

Explore articles, interviews, and demos on React, React Native, and AI engineering, with lessons from the people building the tools.

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- [Building a Software Factory: Write Specs an Agent Can Build From](https://www.callstack.com/blog/building-a-software-factory-write-specs-an-agent-can-build-from) (Nov 6 · Article): Learn how to research requirements, resolve open decisions, and write testable specs that AI coding agents can implement without the planning conversation.
- [ Large-Scale Migrations With Coding Agents: Planning, Verification, and Rollback](https://www.callstack.com/blog/large-scale-migrations-with-coding-agents-planning-verification-and-rollback) (Nov 4 · Article): Plan codebase migrations with coding agents using reviewable requirements, verification checks, staged rollouts, and defined rollback criteria.
- [Conversational Banking: From Customer Questions to Authorized Actions](https://www.callstack.com/blog/conversational-banking-from-customer-questions-to-authorized-actions) (Nov 2 · Article): Explore conversational banking architecture through a card-dispute example, covering tool access, authorization, execution, observability, and human handoff.
- [How AI Agents Can Cut Manual QA by 30%](https://www.callstack.com/blog/how-ai-agents-can-cut-manual-qa-by-30) (Oct 30 · Article): Explore an agentic QA workflow targeting 30% less manual effort across mobile, web, and TV, with test selection, failure triage, and validation.
- [Building a Software Factory: The Night My Agents Waited for Me](https://www.callstack.com/blog/building-a-software-factory-the-night-my-agents-waited-for-me) (Oct 28 · Article): Learn how permissions, review limits, and missing product decisions stalled two overnight coding agent runs, and how their maintainer revised the workflow.
- [Your AI Coding Agent Still Needs an Architecture](https://www.callstack.com/blog/your-ai-coding-agent-still-needs-an-architecture) (Oct 22 · Article): Use explicit contracts, behavior tests, and dependency checks to guide AI coding agents and review their changes through a TypeScript favorites example.
- [Who Left the Agents Running? React Native Software Factories](https://www.callstack.com/events/who-left-the-agents-running-react-native-software-factories) (Oct 15 · Live Stream): Join Kewin Wereszczyński and Szymon Chmal to explore what can go wrong in a React Native software factory overnight and the controls that keep agents on track.
- [When Coding Gets Faster, What Breaks Next?](https://www.callstack.com/podcasts/when-coding-gets-faster-what-breaks-next) (Oct 14 · Podcast): Matt Hargett explains how AI moves bottlenecks across testing, deployment, infrastructure, support, and the rest of software delivery.
- [MCP and Supervisor Agents in eBay's Monitoring Workflow With Leonel Candido da Silva](https://www.callstack.com/podcasts/mcp-and-supervisor-agents-in-ebays-monitoring-workflow-with-leonel-candido-da-silva) (Oct 13 · Podcast): Leonel Candido da Silva explains eBay's agentic monitoring workflow: specialized agents, MCP, PagerDuty reports, and plans to learn from past incidents.
- [AI Agent Observability With Ivana Huckova and Sven Großmann](https://www.callstack.com/podcasts/ai-agent-observability-with-ivana-huckova-and-sven-grossmann) (Oct 12 · Podcast): Grafana's Ivana Huckova and Sven Großmann discuss AI agent observability, coding-agent costs, PR analytics, secret redaction, and local guardrails.
- [Automating Mobile QA with Cloud Agents](https://www.callstack.com/events/automating-mobile-qa-with-cloud-agents-2) (Oct 7 · Talk): Michał Pierzchała shows how cloud-based QA agents can test real iOS and Android user flows and bring screenshots, recordings, and logs into pull requests.
- [Can Jev Make AI Agent Decisions Faster?](https://www.callstack.com/events/can-jev-make-ai-agent-decisions-faster) (Oct 1 · Live Stream): Explore Jev with Kewin Wereszczyński and Szymon Chmal: how it works, its approach to faster agent decisions, and possible local alternatives.
- [The Hard Way vs. The React Native AI SDK Way: Stop Writing Custom Modules for Every Model](https://www.callstack.com/tutorials/the-hard-way-vs-the-react-native-ai-sdk-way-stop-writing-custom-modules-for-every-model) (Mar 19 · Tutorial): Learn how React Native AI uses a unified provider model to switch between cloud and on-device LLMs without rewriting application logic, enabling reliable AI experiences online and offline.
- [Build Smarter Apps: Tool Calling & AI Orchestration Explained](https://www.callstack.com/tutorials/build-smarter-apps-tool-calling-ai-orchestration-explained) (Mar 12 · Tutorial): Learn how on-device models in React Native can call tools, interact with external APIs, and return structured outputs you can use directly in application logic.
- [MLC LLM + React Native: On-Device AI Without the Pain](https://www.callstack.com/tutorials/mlc-llm-react-native-on-device-ai-without-the-pain) (Mar 5 · Tutorial): Learn how to run third-party on-device LLMs in React Native using MLC LLM. Choose your models, run them efficiently across platforms, and keep a unified JavaScript API with React Native AI.
- [Intelligent Fallbacks with Apple Intelligence in React Native](https://www.callstack.com/tutorials/intelligent-fallbacks-with-apple-intelligence-in-react-native) (Feb 24 · Tutorial): Learn how to use Apple’s built-in Foundation Models in React Native apps, reduce memory usage, and enable fast, fully on-device AI with React Native AI Apple.
- [What Is the React Native AI SDK? A Complete Intro & Quickstart](https://www.callstack.com/tutorials/what-is-the-react-native-ai-sdk-a-complete-intro-quickstart) (Feb 10 · Tutorial): Learn why on-device AI matters for React Native apps, how local LLMs behave offline, and what problems React Native AI is designed to solve from day one.
- [Implementing an Android TurboModule with Kotlin](https://www.callstack.com/tutorials/implementing-an-android-turbomodule-with-kotlin) (Jan 29 · Tutorial): Learn how to implement a React Native TurboModule on Android, from the TypeScript spec and Codegen to the Kotlin implementation and package registration.
- [Working with Different Threads in Swift TurboModules](https://www.callstack.com/tutorials/working-with-different-threads-in-swift-turbomodules) (Jan 19 · Tutorial): Learn how JavaScript, native module, background, and main threads interact in React Native TurboModules, and how to use GCD queues to run async work safely in Swift.
- [How to Add Type-Safe Constants to Swift TurboModules](https://www.callstack.com/tutorials/how-to-add-type-safe-constants-to-swift-turbomodules) (Jan 9 · Tutorial): Learn how to expose typed, immutable constants from a Swift TurboModule using Codegen, and get full end-to-end type safety between native and JavaScript.
- [Adding Event Emitters to Your TurboModule in Swift](https://www.callstack.com/tutorials/adding-event-emitters-to-your-turbomodule-in-swift) (Dec 30 · Tutorial): Learn how to emit native events from a Swift TurboModule and subscribe to them in JavaScript, including proper memory management and Codegen integration.
- [Writing Your First TurboModule in Swift](https://www.callstack.com/tutorials/writing-your-first-turbomodule-in-swift) (Dec 22 · Tutorial): Learn how to build a fully working TurboModule in Swift, integrate it with Codegen, and bridge it through Objective‑C inside an Expo app.