How do I create a custom subagent?

Custom subagents can be created by defining their configuration in Markdown files, which specify system instructions, tools, and permissions.

What are the key benefits of using subagents?

Key benefits include improved performance through isolated context, enhanced productivity via parallel execution, and efficient delegation without cluttering the main session.

Can subagents interact with external tools or services?

Yes, subagents can be equipped with curated tools and MCP servers to interact with external systems as required.

Is this feature suitable for non-developers?

Primarily designed for developers and technical users, but it can be adapted by anyone familiar with terminal-based automation and scripting.

Subagents in Gemini CLI

Gemini CLI now runs specialist subagents in your terminal

Productivity

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Overview
5 key features
4 use cases

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What is Subagents in Gemini CLI

Subagents in Gemini CLI is a feature that allows the main AI agent to delegate complex or high-volume tasks to specialized subagents within the terminal. Each subagent operates in an isolated context with custom tools and scoped permissions, ensuring efficient task management and preventing performance issues. It is designed for developers who build and automate workflows directly from the command line.

Key Features

Isolated context windows for each subagent to keep the main session fast and focused

Customizable via Markdown files with specific system instructions and tools

Parallel execution capability to handle multiple tasks simultaneously and boost productivity

Easy invocation using @agent syntax for targeted delegation

Consolidates multi-step executions into concise summaries to prevent context rot

Use Cases

Developers automating complex build and deployment processes from the terminal
DevOps engineers managing high-volume system monitoring and maintenance tasks
AI researchers delegating repetitive data analysis or model training steps
Software teams collaborating on terminal-based project management and automation

Why do startups need this tool?

Startups need Subagents in Gemini CLI to automate repetitive and complex tasks, enabling small teams to scale operations efficiently without extensive manual effort. It accelerates development cycles, reduces overhead, and supports lean workflows crucial for rapid growth and innovation.