Custom Deep Research Agents: Write Your Own in Marvin Labs
You can now write your own custom AI research agents in Marvin Labs. Describe the work in plain language, and the agent runs it on one company, across your watchlist, or on a theme with no company at all. Run it on demand, from chat, on a schedule or when a company releases results. Its reports keep their history and export to PDF and email like any of the Deep Research Agents we ship.
Write an agent in plain language
An agent is a title, a short description and its instructions. The instructions are a brief: what to look at, over what period, and what the output should contain. "Compare gross and operating margins across the companies over the last eight quarters, and flag any company whose margin moved more than 200 bps against the group" is a complete agent.
A custom agent works with the same research tools as the agents we ship, so your brief can draw on the same financials, including the as reported statements, and the same document and news coverage.
If your first draft is rough, Marvin Labs can suggest a rewrite of the brief. Your own text stays as it is unless you accept the suggestion.
One company, a list, or none
An agent runs for one company, a list of companies such as your watchlist, or no specific company. Marvin Labs infers which from your instructions, and you can change it. A list agent writes one report covering the whole list. An agent with no company researches a theme.
Start from a template
Five templates give you a starting point: input cost watch, guidance credibility check, peer margin comparison, capital allocation comparison and supply chain disruption monitor. Each one comes with a title, description, instructions and scope that you edit from there.
Run it on a schedule or when a company reports
A custom agent can run on a schedule or whenever a company releases results, and the report arrives by email after each run. A scheduled run has the same access as a run you start yourself, so it never reports on a company you don't have access to.
Private to you, on paid plans
Each custom agent is private to the person who wrote it. Custom agents are available on paid plans and use the same AI credits as any other agent run.
Common questions about custom agents
Try it on your coverage
Try Chat and research agents with 1,500 AI credits on the evaluation companies. Create a free evaluation account, with no sales call.
Discuss your coverage and workflow with the founder in a 30-minute call.
Alex is the co-founder and CEO of Marvin Labs. Prior to that, he spent five years in credit structuring and investments at Credit Suisse. He also spent six years as co-founder and CTO at TNX Logistics, which exited via a trade sale. In addition, Alex spent three years in special-situation investments at SIG-i Capital.
