> For the complete documentation index, see [llms.txt](https://docs.nimbalyst.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.nimbalyst.com/visual-editors-powered-by-ai/code-editor.md). # Code Editor Nimbalyst includes a Monaco code editor, the same engine VS Code uses, with syntax highlighting and AI edits next to your docs and diagrams. Nimbalyst includes a full-featured code editor powered by Monaco (the same editor used in VS Code). When you open a code file, it automatically opens in Monaco with syntax highlighting and standard editing features. Code editing sits next to the rest of the workspace rather than in a separate app. See the [developer tools page](https://nimbalyst.com/features/developer-tools/).
Code open in Nimbalyst's Monaco editor, with the file tree and agent panel beside it

Code uses the same workspace layout as documents and visual editors, so the project and agent conversation stay beside the file.

### Reviewing AI Changes When an agent edits a code file, Nimbalyst opens Monaco's inline diff view. The editor is read-only while the diff is awaiting review: * Green background: Added content * Red background: Removed content (with strikethrough) * **Previous** and **Next** jump between changed regions, and the counter shows your position. * **Accept All** keeps the agent's version. * **Reject All** restores the version from before the edit. * **Go to Session** opens the agent session that made the edit when that session is known. The diff remains visible until you accept or reject it. ### Supported File Types The code editor supports a wide range of programming languages: #### Web Development * JavaScript: `.js`, `.jsx`, `.mjs`, `.cjs` * TypeScript: `.ts`, `.tsx`, `.d.ts` * HTML: `.html`, `.htm` * CSS: `.css`, `.scss`, `.sass`, `.less` #### Data Formats * JSON: `.json`, `.jsonc` * YAML: `.yaml`, `.yml` * XML: `.xml` * TOML: `.toml` #### Programming Languages * Python: `.py`, `.pyw`, `.pyi` * Go: `.go` * Rust: `.rs` * C/C++: `.c`, `.h`, `.cpp`, `.cc`, `.hpp` * Java: `.java` * C#: `.cs` * Swift: `.swift` * Kotlin: `.kt` * Ruby: `.rb` * PHP: `.php` * Dart: `.dart` #### Shell & Config * Shell scripts: `.sh`, `.bash`, `.zsh`, `.fish` * SQL: `.sql` * GraphQL: `.graphql` * Dockerfile #### Other * Markdown: `.md` (raw view mode) * Plain text: `.txt`, `.log` ### Editor Features #### Syntax Highlighting Each language gets appropriate color highlighting, making code easy to read and understand. #### Line Numbers Line numbers appear on the left for navigation and reference. #### Minimap A code overview appears on the right side, letting you see the structure of longer files and quickly jump to different sections. #### Code Folding Click the arrows next to code blocks to collapse or expand them. Works with: * Functions and methods * Classes * Conditional blocks * Loops * JSON objects and arrays #### Bracket Matching Matching brackets, braces, and parentheses are highlighted in color, making it easy to see paired delimiters. ### Editing Code #### Autosave Changes save automatically after 2 seconds of inactivity. A dot in the tab title indicates unsaved changes. #### Manual Save Press **Cmd+S** (Mac) or **Ctrl+S** (Windows/Linux) to save immediately. All common editing shortcuts work: * **Cmd/Ctrl+C**: Copy * **Cmd/Ctrl+V**: Paste * **Cmd/Ctrl+Z**: Undo * **Cmd/Ctrl+Shift+Z**: Redo * **Cmd/Ctrl+F**: Find * **Cmd/Ctrl+H**: Find and replace #### Indentation New files default to two-space indentation. Existing files keep their detected indentation style. ### File Watching The editor detects when files are changed by other programs: * If you have no unsaved changes, the file reloads automatically * If you have unsaved changes, Nimbalyst shows a conflict banner so you can load the disk version or keep working with your current version ### File History Code file edits are tracked in your file history: * Press **Cmd+Y** (Mac) or **Ctrl+Y** (Windows/Linux) to open file history * Restore any previous version of the file * See when changes were made ### Tips * **Hover for full path**: Hover over a tab to see the complete file path * **Multiple files**: Open code and markdown files side by side in tabs * **Theme support**: The editor automatically matches your Nimbalyst theme (light/dark) * **Focus indicator**: When you click elsewhere and return, your cursor position is preserved --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://docs.nimbalyst.com/visual-editors-powered-by-ai/code-editor.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.