Antigravity gets an SDK and CLI, Gemini API gets managed agents
Source
x.com
Author
Google AI
Date
Context
Google AI's Antigravity announcements offer developers a choice about where an AI agentAn AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.Full definition → runs. The Antigravity SDK provides programmatic control over the coding agent and permits deployment on the developer's own infrastructure. Managed Agents in the Gemini API supplies a hosted agent and remote execution environment through an API call. Developer announcement.
Both expose the Antigravity agent harnessThe scaffolding around a model that turns it into a working agent — the loop, the tools it can call, and the rules for when to stop.Full definition →, the software surrounding the model that supports its work. The SDK provides a route to customizing and operating that system; the managed service takes on the hosting and environment setup.
Terms in this piece · Glossary
AI agent — An AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.
agent harness — The scaffolding around a model that turns it into a working agent — the loop, the tools it can call, and the rules for when to stop.
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