Devin
Devin is an autonomous cloud software engineer from Cognition: you connect a repo, give it a task in plain English, and it works on its own in the cloud, then opens a pull request for you to review. Nothing installs on your laptop, and it can run tasks in the background while you do other things. For an operator who would rather delegate a whole job than sit and steer every step, Devin is the most hands-off option in this directory — you describe the outcome and check the result.
Go to https://app.devin.ai and sign inConnect your GitHub repoGive Devin a task in plain English
Your Engine files go in AGENTS.md — Commit your Engine .md files to the connected repo and reference them from an AGENTS.md at the root so Devin picks them up as context for the task.
☁ Also runs in the cloud: Devin (app.devin.ai) — Devin is cloud-native: it runs in Cognition's environment against your connected repo and opens PRs — no local install at all.
WHAT OPERATORS USE IT FOR
- • Assign 'build the sales page from these Context Files' and get back a PR
- • Have Devin scaffold a funnel and opt-in flow across several files on its own
- • Delegate a fix — a broken form or checkout button — and review the result
Heads up: Devin is a paid product with no free tier, so it is a bigger commitment than the free tools here. Autonomy cuts both ways: it can go far in the wrong direction on a vague task, so give it clear Context Files and review its pull requests carefully before merging — do not ship its work blind. Pricing and usage terms change, so confirm the current plan on the official site before committing.
What Devin is
Devin is an autonomous AI software engineer built by Cognition. Unlike a copilot that sits beside you in an editor, Devin runs in the cloud on its own: you connect a repository, give it a task in plain English, and it plans, writes, tests, and edits code across the project, then opens a pull request for you to review. There is no local install — the work happens in Cognition's environment and comes back to you as a PR.
Why operators consider it
The appeal is delegation. Instead of steering every step, you hand Devin a whole job — 'build the sales page from this brief,' 'wire up the opt-in flow' — and let it work while you do something else. It can run tasks in the background and even take on more than one at a time. For an operator who thinks in outcomes rather than steps, that hands-off model is a genuinely different way to build.
Honest tradeoffs
Devin is a paid product with no free tier, so it is a larger commitment than the free agents in this directory. And autonomy is a double-edged tool: on a vague task, an agent working on its own can travel a long way in the wrong direction. The fix is discipline — give it clear instructions and review every pull request before you merge. Never ship its work unread. Pricing and terms shift, so confirm the current plan on the official site first.
Use it with the Engine
Devin is exactly the kind of agent that lives or dies on context. Commit your Engine Context Files to the connected repo and reference them from an AGENTS.md — your offer, your audience, your voice, your funnel plan — and then task Devin against them. Load your Context Files and it builds your offer autonomously, returning a pull request you can check line by line. This is where the Levels of the Game pay off: the sharper your Context Files, the more you can safely delegate. The $1 Starter Kit gives you a ready-made set to hand it on day one.
BUILD YOUR OFFER WITH DEVIN
Because Devin works from your connected repo, commit your Context Files and reference them from an AGENTS.md, then task Devin against them: 'build the funnel these Context Files describe.' Load your Context Files and it builds your offer autonomously, opening a PR you can review. The clearer and tighter your Context Files, the less Devin guesses and the closer its first pass lands — good context is what makes an autonomous agent safe to delegate to.
The $1 Starter Kit generates the Context Files Devin needs — personalized to your niche.
GET THE $1 STARTER KIT →Install commands change — confirm the latest at the official docs above.