Upgrade Agents

Upgrades that run themselves

Upgrade work is repetitive, risky, and always postponed. We build agents that execute framework and dependency upgrades with repeatable migration steps and validation, based on the playbooks we use as React Native Core Contributors.

3x
Delivery acceleration
80%
Effort executed by agents
Industry runs on our tooling
50M+
OSS downloads / month
3.7×
Lower task cost vs Opus 5.5
Built on Agent Device.
React Foundation Founding Member
300+ commits to React Native
100+
Enterprise projects delivered
ISO 27001 certified

What you get

Stay current without the quarter-long slog.

  • Automated upgrade runs

    React Native, Expo, and dependency bumps executed by agents, step by step.

  • Proven migration playbooks

    Built on Callstack's open-source Agent Skills, maintained by the team that does this for a living.

  • Breaking-change resolution

    API migrations and native config changes applied and compiled, not just flagged.

  • Validation on real devices

    Every upgrade verified by QA runs before it reaches review.

  • Repeatable across apps

    The same upgrade pipeline reused across your portfolio.

  • Security patch cadence

    Vulnerable dependencies patched on schedule instead of after incidents.

Upgrade Agents

Never be three versions behind again.

Continuous upgrade agents keep the stack current while your team ships features.

Scope → Build → Scale

Build agents into repeatable workflows.

  • Scope

    We select a product workflow, define where agents act, and agree the controls and success measures.

    • Workflow and owners defined
    • Baseline and controls agreed
    • Token budgets confirmed
  • Build

    We connect context, agents, and verification to your tools, then run the workflow on your product backlog.

    • Running on your product backlog
    • Speed and quality measured
    • Business impact validated
  • Scale

    We document the workflow, transfer ownership, and extend it across teams and products based on results.

    • Your team owns the workflow
    • Expand based on results
    • Full knowledge handover

Case studies

What shipping at AI speed looks like.

Upgrade Agents

Never be three versions behind again.

Continuous upgrade agents keep the stack current while your team ships features.

Their engineers proved to be a crucial part of our mobile app relaunch project.

Brian AznarEngineering Director / Major League Soccer

Build custom agents

We’ll connect you with the right expert within 24 hours.

Still have questions?

Let’s find the right path for your product.

Whether you’re planning new work or unblocking an existing product, we’ll help you choose the right path forward.

How much of an upgrade is truly automated?

The mechanical majority: version bumps, API migrations, config changes, and verification. Humans decide on architectural implications and review the result - judgment stays, toil goes.

What about our custom native code?

Agents handle the standard surface; custom native modules get flagged with proposed changes for engineer review. That split is explicit in every run.

How often should upgrades run?

Small and continuous beats big and annual. Most teams move to monthly dependency cycles and same-quarter React Native releases.

What happens when an upgrade breaks something?

It does not merge. Each upgrade lands as a validated PR with device-run evidence; failures stay on a branch with a diagnosis attached.

Which stacks are supported?

React Native and Expo first - it is where our playbooks are deepest - plus React, Next.js, and Node services in the same pipeline.

Why agents instead of a one-off upgrade project?

A project fixes today's lag; agents remove the recurring cost. The pipeline keeps paying off with every release after we hand it over.

Open Source

Build with our open-source tools.

We open-source the tools behind our delivery model.
Use them, fork them, or let us run them for you.

Agent Device

CLI to control iOS and Android devices for AI agents

980.4K downloads/mo

Agent React DevTools

Gives AI agents access to React DevTools

251 stars

Agent Skills

Callstack’s best practices on React Native performance optimization, upgrading, CI workflows, and brownfield migrations

1.7K stars

React Native AI

On-device LLM execution in React Native with Vercel AI SDK compatibility

227.7K downloads/mo

Skill Gym

Prove your agent skills work before you ship them

1.6K downloads/mo

Insights

Worth your time, by engineers.

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Jul 22Article

Building Vault: A Dual-Screen Terminal for Self-Hosted AI Agents

Vault is a dual-screen handheld terminal for controlling AI agents and locally hosted LLMs from a purpose-built device. This article explains how the prototype combines an ESP32-S3, OLED, and e-paper display with an OpenClaw agent and gpt-oss-120b served on a LAN host through TensorRT-LLM. It covers the interface architecture that separates live task status from completed output, the Python broker that keeps inference off the device, the hardware failures that shaped the build, and the security limits of remote command execution.

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Jun 19Article

Building Mobile QA Agents With Vercel Eve

This article walks through migrating a mobile QA agent from a single AI SDK tool loop to Vercel Eve. It shows how Eve’s filesystem-first structure, typed tools, and durable sessions make agent behavior easier to inspect, review, and maintain inside EAS Workflows.

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Jun 10Article

5 Lessons From Vibe Coding Before You Ship with AI

AI agents can turn an app idea into working code in hours. They can also overbuild simple features, miss your architecture, and quietly run up cost. In this article, Hristo Totov breaks down five practical lessons for using AI agents with better prompts, better feedback loops, and better engineering judgment.

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May 21Article

Agencies or Swarms? What Small Model Cooperation Means for AI Engineering

Agentic systems may not depend only on larger models. This article examines how swarms of smaller models behave under load and what that means for distributed inference, concurrency, and infrastructure design.

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Apr 1Article

Agents Commander: A Lightweight Interface for Multi-Agent CLI Workflows

Agents Commander introduces a practical way to manage multi-agent environments directly in the CLI. With a minimal communication protocol, it enables agents to collaborate without complex infrastructure or rigid APIs.

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Feb 4Article

Giving AI The Keys to Your App: Agents Controlling UI State

This project shows how to let AI agents control UI state in React apps using Jotai and Flows-AI. By moving logic outside components, agents can autonomously update the UI based on prompts and context to enable smarter, automated workflows.

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Jan 22Article

Flows AI: Your Library for Building AI Workflows on Top of Vercel AI SDK

Flows AI is a lightweight library for building AI agent workflows on top of Vercel AI SDK. It provides a simple, flexible way to orchestrate agents as async functions, with built-in control flow agents for parallel execution and composing flows.

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Jan 17Article

Building AI Agent Workflows With Vercel’s AI SDK: A Practical Guide

Building AI agent workflows doesn't have to be complex. This practical guide walks through how to use Vercel's AI SDK to create chained, routed, parallel, and evaluator-optimizer workflows step-by-step, with code examples you can try yourself.

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Oct 13Podcast

MCP and Supervisor Agents in eBay's Monitoring Workflow With Leonel Candido da Silva

Leonel Candido da Silva explains eBay's agentic monitoring workflow: specialized agents, MCP, PagerDuty reports, and plans to learn from past incidents.

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Oct 12Podcast

State Machines for AI Agents With David Khourshid

David Khourshid explains state machines for AI agents, human approval steps, tracing, and handling invalid model outputs in agent workflows.

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Oct 12Podcast

Inside Cursor, Colossus, and Grok Bot With Nick Miller

Nick Miller explains Cursor's move to SpaceXAI, how Colossus changed model training, and the browser experience behind Grok Bot.

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Nov 25Podcast

Building a Custom AI Assistant for Your Business

Learn what it takes to build a custom AI-powered chatbot for your company, including the challenges, solutions, performance, and security considerations.

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Oct 22Meetup

From Design to Shipped: A Modern App Development Meetup

Join Callstack, JetBrains, and Expo in Amsterdam on October 22 for talks on AI agents, UI development, and verification across web and mobile.

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Aug 27Live Stream

Graph Agentic Coding Extends AI Workflows

How connected state, retrieval, memory, and verification carry coding agents across complex, multi-step workflows. Kewin Wereszczyński and Lech Kalinowski discuss the structures that let agents plan, retrieve context, use tools, and keep working across longer tasks.

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Nov 16Talk

Beyond Coding Agents: Making ADLC Work Across Platforms

Mike Grabowski will explain how to close the full agentic development lifecycle across mobile, web, and native platforms.

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Jul 30Live Stream

How We Built a React Native News Agent With Eve

See how we built and deployed an Eve agent that tracks React and React Native repositories, filters commit noise, and publishes daily Slack updates.

Events Cover

Sep 17Conference

Agent Conf

Join 500+ engineers in Warsaw Sept 17-18 2026 for Agent Conf. Learn agentic development, orchestration, and AI-driven workflows.

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Sep 2Talk

AI for the Other Parts of Your Technical Job

Stop fitting your workflow into off-the-rack tools. Learn to build your own AI-powered solutions, including a custom slide generator and a collaborative developer notebook.