OpenCode: let an AI agent read, plan and edit code in your terminal

What it does

OpenCode is an AI coding agent that runs in your terminal, and also as a desktop app. It has two built-in agents you switch between with the Tab key. Build is the default and has full access for development work. Plan is read-only: it refuses file edits by default and asks before running bash (terminal) commands. A general subagent handles complex searches and multistep tasks; you can call it with @general in a message.

How to use it

Input → action → output: open OpenCode inside a project folder and type a request in plain words. In plan mode you get an explanation of the code or a proposed change; switch to build mode and the agent edits files and runs commands to make the change.

Common use cases

• Open an unfamiliar codebase, switch to the plan agent, and ask how a feature works to get a walkthrough without any files changing.
• Describe a bug to the build agent and get edited files plus the commands it ran to fix it.
• Mention @general with a broad search request and get a summary of every place in the project that matches.