Runner

Built from the ground up for agentic coding

Runner helps you ship code at superhuman speed, while keeping you in complete control.

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Runner interface showing tasks, code editor, and planning agent

Not another VS Code fork

Agentic coding changes the job of a software developer from writing code to architecting software. Doing this in collaboration with AI requires a new type of user interface.

How the Runner UI works →

Specs are the
new code

We're moving up one layer of abstraction. Instead of directly writing code, we're writing specs. Runner interactively builds specs with you and gets your approval before it writes a line of code.

Intro to spec-driven development →
Task specification interface
Coding agent interface showing automated task execution

Plan → Code → Review

Once a task has been specced out, Runner can autonomously write the code and verify the changes. All you have to do is approve it at the end.

User Guide →

AI tuned for maximum performance

We don't artificially constrain token usage or swap in cheaper models just to hit a price point. We use frontier models and give them massive amounts of context about your codebase, so you can ship production-quality code at superhuman speed.

User Guide →
Task list interface showing development tasks

Understanding code is just as important as writing it

When agents can write code 10x faster than a human, the bottleneck becomes the speed with which you can understand that code. Runner helps make this as easy as possible.

How Runner helps with codebase understanding →
Code understanding interface showing analysis and documentation

Built for professional software developers, not vibe coders

This is not a vibe coding platform. Runner is built for professional software developers who are responsible for the code they ship. You stay in complete control, while the agent does the grunt work.

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