Dropstone for VS Code - AI Coding Agent Extension

Dropstone runs as an extension inside the editor you already use. There is no separate Dropstone IDE to install, no workspace to migrate, and nothing to learn twice — you add an extension and the agent appears beside your code.

Get Dropstone for VS Code on the Marketplace

It works in VS Code and the popular forks: Cursor, Windsurf, and VSCodium.

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Install

You can also install it straight from the Marketplace listing in your browser.

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What it does

The extension is the full agent, not a chat box. It reads, writes and refactors code across your workspace, runs commands, and explains what it did afterwards.

Every edit is a reviewable diff

Nothing is written to your files until you say so. Each change arrives as a diff you can read, accept, or reject — so you always review the work before it lands, the same way you would review a colleague's pull request.

Agent modes

Choose how much autonomy the agent gets:

Mode	What it does
Build	Makes changes as it works, showing each one for review.
Plan	Works out an approach and presents it before touching anything.
Accept All	Applies changes without stopping for each diff. For work you already trust.
Discovery	Explores and explains the codebase without editing it.

Model and effort control

Switch between the Fast, Pro and Heavy tiers and adjust reasoning effort from inside the panel — no config file, no restart. See Models for what each tier is good at.

Permissions

Any tool call that touches your machine — running a command, writing outside the workspace — prompts first. The rules are the same ones described in Permissions.

Images and screenshots

Paste a screenshot directly into the conversation. Useful for a failing UI, a stack trace in a terminal you cannot copy from, or a design you want built.

Slash commands

Both the built-in commands and any your workspace defines are available. See Slash Commands.

Chat history

Sessions can be resumed, renamed, or deleted, so a long-running piece of work survives closing the editor.

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Extension or CLI?

They are the same agent with the same account, the same weekly usage window, and the same memory. Anything Dropstone learns in one is available in the other, and work in either counts against one allowance.

The difference is only how you drive it:

• The extension keeps you in the editor, and is the easier place to review diffs against the file they belong to.
• The CLI is better when you already live in a terminal, are working over SSH, or want to script it. See IDE for running it inside your editor's integrated terminal.

Use whichever fits the task. Many people use both.