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skills-cursor/update-cursor-settings/SKILL.md

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+---
+name: update-cursor-settings
+description: >-
+  Modify Cursor/VSCode user settings in settings.json. Use when you want to
+  change editor settings, preferences, configuration, themes, font size, tab
+  size, format on save, auto save, keybindings, or any settings.json values.
+metadata:
+  surfaces:
+    - ide
+---
+# Updating Cursor Settings
+
+This skill guides you through modifying Cursor/VSCode user settings. Use this when you want to change editor settings, preferences, configuration, themes, keybindings, or any `settings.json` values.
+
+## Settings File Location
+
+| OS | Path |
+|----|------|
+| macOS | ~/Library/Application Support/Cursor/User/settings.json |
+| Linux | ~/.config/Cursor/User/settings.json |
+| Windows | %APPDATA%\Cursor\User\settings.json |
+
+## Before Modifying Settings
+
+1. **Read the existing settings file** to understand current configuration
+2. **Preserve existing settings** - only add/modify what the user requested
+3. **Validate JSON syntax** before writing to avoid breaking the editor
+
+## Modifying Settings
+
+### Step 1: Read Current Settings
+
+```typescript
+// Read the settings file first
+const settingsPath = "~/Library/Application Support/Cursor/User/settings.json";
+// Use the Read tool to get current contents
+```
+
+### Step 2: Identify the Setting to Change
+
+Common setting categories:
+- **Editor**: `editor.fontSize`, `editor.tabSize`, `editor.wordWrap`, `editor.formatOnSave`
+- **Workbench**: `workbench.colorTheme`, `workbench.iconTheme`, `workbench.sideBar.location`
+- **Files**: `files.autoSave`, `files.exclude`, `files.associations`
+- **Terminal**: `terminal.integrated.fontSize`, `terminal.integrated.shell.*`
+- **Cursor-specific**: Settings prefixed with `cursor.` or `aipopup.`
+
+### Step 3: Update the Setting
+
+When modifying settings.json:
+1. Parse the existing JSON (handle comments - VSCode settings support JSON with comments)
+2. Add or update the requested setting
+3. Preserve all other existing settings
+4. Write back with proper formatting (2-space indentation)
+
+### Example: Changing Font Size
+
+If user says "make the font bigger":
+
+```json
+{
+  "editor.fontSize": 16
+}
+```
+
+### Example: Enabling Format on Save
+
+If user says "format my code when I save":
+
+```json
+{
+  "editor.formatOnSave": true
+}
+```
+
+### Example: Changing Theme
+
+If user says "use dark theme" or "change my theme":
+
+```json
+{
+  "workbench.colorTheme": "Default Dark Modern"
+}
+```
+
+## Important Notes
+
+1. **JSON with Comments**: VSCode/Cursor settings.json supports comments (`//` and `/* */`). When reading, be aware comments may exist. When writing, preserve comments if possible.
+
+2. **Restart May Be Required**: Some settings take effect immediately, others require reloading the window or restarting Cursor. Inform the user if a restart is needed.
+
+3. **Backup**: For significant changes, consider mentioning the user can undo via Ctrl/Cmd+Z in the settings file or by reverting git changes if tracked.
+
+4. **Workspace vs User Settings**:
+   - User settings (what this skill covers): Apply globally to all projects
+   - Workspace settings (`.vscode/settings.json`): Apply only to the current project
+
+5. **Commit Attribution**: When the user asks about commit attribution, clarify whether they want to edit the **CLI agent** or the **IDE agent**. For the CLI agent, modify `~/.cursor/cli-config.json`. For the IDE agent, it is controlled from the UI at **Cursor Settings > Agent > Attribution** (not settings.json).
+
+## Common User Requests → Settings
+
+| User Request | Setting |
+|--------------|---------|
+| "bigger/smaller font" | `editor.fontSize` |
+| "change tab size" | `editor.tabSize` |
+| "format on save" | `editor.formatOnSave` |
+| "word wrap" | `editor.wordWrap` |
+| "change theme" | `workbench.colorTheme` |
+| "hide minimap" | `editor.minimap.enabled` |
+| "auto save" | `files.autoSave` |
+| "line numbers" | `editor.lineNumbers` |
+| "bracket matching" | `editor.bracketPairColorization.enabled` |
+| "cursor style" | `editor.cursorStyle` |
+| "smooth scrolling" | `editor.smoothScrolling` |
+
+## Workflow
+
+1. Read ~/Library/Application Support/Cursor/User/settings.json
+2. Parse the JSON content
+3. Add/modify the requested setting(s)
+4. Write the updated JSON back to the file
+5. Inform the user the setting has been changed and whether a reload is needed