Planning Mode
Planning Mode is a feature in Google’s open-source Gemini CLI that functions as a terminal agent for developers. It enables the tool to decompose complex development tasks into discrete, sequential steps before execution. Rather than immediately acting on user requests, the CLI first generates a structured plan that outlines the intended approach and reasoning. This intermediate planning phase allows developers to review the agent’s logic and proposed actions before they are carried out.
How It Works
When Planning Mode is enabled, the Gemini CLI analyzes incoming developer requests and creates an explicit plan of action. This plan breaks down the task into smaller, manageable steps that the agent will execute in sequence. By separating the planning phase from the execution phase, developers gain visibility into the agent’s reasoning process and can verify that the proposed approach aligns with their intent before any changes are made to their system.
Purpose for Developers
The feature addresses a key concern in agent-based development tools: the need for transparency and control. By requiring agents to plan before acting, Planning Mode reduces the risk of unintended consequences and provides developers with an opportunity to intervene or modify the plan if necessary. This approach is particularly valuable in terminal environments where agent actions can have immediate system-level effects.
Source Notes
- 2026-04-29: Optimizing LLM Agent · ▶ source