PluginCrystalCode.Plugins.Computer
Computer
Let the agent see and control a running VirtualBox VM through a display, keyboard, pointer, and one guest process.
- Screen capture and pointer input
- Keyboard shortcuts and text
- One guest process
Extensions
Optional extensions maintained alongside Crystal Code. Each one lives in its own repository and is installed separately.
Official plugins
In-process extensions that add behavior beside the host.
Official tool sets
Standalone tools with their own directory, approval policy, and timeouts.
Tool setCrystalCode.Tools.Web
Web
Search the live web and fetch pages, with Parallel as the default search backend and several other backends available.
- Web search
- Page fetch
- Bounded output
Tool setCrystalCode.Tools.ApplyPatch
Apply Patch
Apply one verified multi-file patch inside the workspace, with paths checked before any file changes.
- Add, update, and delete files
- Verify before applying
- Workspace fence
Tool setCrystalCode.Tools.Memory
Memory
Keep durable notes across sessions, split into global and opt-in project scopes, with atomic writes and no model-chosen paths.
- Global and project notes
- Atomic writes
- Prompt attachment
How to install
Clone the extension repository, then ask Crystal Code or another coding agent to install it. Point the agent at the checkout and the target directory.
- 1.
Clone the repository
Clone the official extension repository.
- 2.
Ask an agent to install it
Give the agent the checkout and the directory where it should be installed.
Tool set
Install this checkout into ~/.crystal/tools/web and enable it.Plugin
Install this checkout into ~/.crystal/plugins/computer and enable it.Tool sets go under ~/.crystal/tools/<name>. Plugins go under ~/.crystal/plugins/<name>. The agent can clone, publish, and enable the extension for you.
Built-in tools are not listed here. To build your own plugin or tool set, see Extend.