Harvey AI has released more than 500 pre-built legal agents and overhauled its Agent Builder, giving lawyers a ready-made library of automation tools plus the ability to design their own. The move is aimed at cutting the time attorneys spend on repetitive tasks — contract review, due diligence checklists, compliance tracking — without forcing them to build everything from scratch.
What the new agents cover
The pre-built agents span practice areas from corporate law to litigation. Each agent is a packaged workflow: feed it a document or a query, and it returns a structured output. Harvey says the agents were built on patterns its legal clients already use, so the templates reflect real-world work rather than theoretical use cases.
Lawyers can pick an agent for, say, spotting red flags in a merger agreement or generating a discovery response. The company didn't break down exactly how many agents target specific fields, but the total count — 500-plus — suggests coverage across most common legal tasks.
Customization through the upgraded Agent Builder
Alongside the pre-built agents, Harvey updated its Agent Builder, a tool that lets lawyers create custom agents without coding. The upgrade adds more drag-and-drop logic, conditional steps, and integration hooks into common legal software. A lawyer can take a pre-built agent and tweak its parameters — change the jurisdiction, adjust the risk threshold, add a review step — or build a brand-new agent from a blank canvas.
The company describes the Builder as a way to handle the workflows that are unique to a firm or a practice group. Standard agents cover the basics, but every firm has its own playbook. The Builder is meant to capture those proprietary processes.
Law firms have been experimenting with AI for document review and research, but stitching those individual tools into a coherent workflow has been messy. Harvey's approach bundles the AI into discrete, reusable units that slot into existing routines. Instead of prompting a general AI model each time, a lawyer calls a specific agent trained on a narrow task, which the company says reduces errors and speeds up turnaround.
The 500 agents also lower the barrier to entry. Smaller firms without a dedicated tech team can adopt ready-made tools rather than investing in custom development. Larger firms can use the Builder to scale their own best practices across teams.
The agents and the updated Builder are available now to Harvey clients. The company hasn't announced pricing changes tied to the release, and it's not clear whether the pre-built agents are included in existing subscriptions or sold separately. Lawyers who want to test the new tools can request access through Harvey's platform.
