Google's Jules AI Coding Agent Expands to CLI, API, and MCP Server in VS Code
Google's AI coding agent Jules, which launched in public preview in May 2025, has steadily expanded from a web-only tool to a full suite including a CLI, public API, and MCP server with thirteen tools by January 2026. The agent can autonomously fork repositories, generate code diffs, and open pull requests, integrating with terminals, CI pipelines, Slack, and VS Code. Free-tier users receive 15,000 tokens per task, while the Ultra plan supports up to 1,500 daily tasks with 150,000–200,000 tokens each. Spotify has already merged around 1,500 AI-generated pull requests, ranging from dependency updates to refactoring complex multi-repo systems. Security experts warn that autonomous agents operating without mandatory human code review could introduce undetected vulnerabilities into production systems.
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