Agent Device
CLI to control iOS and Android devices for AI agents
980.4K downloads/mo
Trusted by 100+ Enterprise clients
Why build agents with Callstack
Turn repeatable work into agents.
We build internal agents around your standards, repos, and delivery systems so recurring work keeps moving after a developer session ends. Teams reduce manual review, testing, docs, and workflow steps.
Keep work moving in parallel.
Agents continue repeatable engineering work beyond a single developer session.
Cut the busywork around delivery.
Review, testing, documentation, and workflow steps need less manual effort.
Turn team habits into tools.
Internal agents capture standards and workflows that would otherwise stay informal.
Grow output without hiring linearly.
Teams can handle more work without matching every gain to headcount.
Services
Automate the work around delivery.
Use Cases
Code Review Agents
Check PRs for regressions, missing tests, weak patterns, and team standards before human review.
Upgrade Agents
Run framework, dependency, and React Native upgrade work with repeatable checks and migration steps.
Maintenance Agents
Handle routine cleanup, dependency updates, deprecated APIs, and repo hygiene before they block delivery.
Documentation Agents
Keep technical docs, changelogs, release notes, and implementation notes aligned with code changes.
CI/CD Automation Agents
Automate build checks, pipeline fixes, test reruns, release gates, and rollout steps across your delivery workflow.
Internal Tool Agents
Connect agents to tickets, repos, CI, Slack, Linear/Jira, and internal systems with scoped access and clear rules.
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
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
Case studies
What shipping at AI speed looks like
- 3x
- estimated delivery acceleration
