JSON Schema Validator VS Code Extension

A Visual Studio Code extension that validates JSON files against a JSON Schema using Ajv, displaying inline diagnostics and an output log.

Features

On-Save Validation: Automatically runs validation each time you save a JSON file.
Command Palette: Manually trigger validation via the "Validate JSON Against Schema" command.
Inline Diagnostics: Schema violations show up as red squiggles and entries in the Problems panel.
Output Channel: Detailed validation logs appear in a dedicated JSON Validator output channel.

Node.js (>=12.x)
The extension bundles its own CLI (validate.js); no separate global install required.

Clone or download this repository into your VS Code extensions folder:
```
git clone https://github.com/yourusername/json-schema-validator.git
```
Navigate into the extension directory and install dependencies:
```
cd json-schema-validator
npm install
```
Build the extension:
```
npm run build
```
Launch the extension in Development Host:
- Open the project in VS Code.
- Press F5 (or your configured debug shortcut).

Tip: If F5 triggers macOS dictation, enable Use F1, F2, etc. keys as standard function keys in System Settings → Keyboard.

Set the JSON Schema file path in your workspace settings:

// .vscode/settings.json
{
  "jsonSchemaValidator.schemaPath": "${workspaceFolder}/schemas/schema.json"
}

schemaPath: Path to your JSON Schema file. Can be absolute or relative to the workspace root.

Simply open any .json file in your workspace and save (⌘S).
If the file violates the schema, you’ll see red squiggles and error messages in the Problems pane.

Command	Description
Validate JSON Against Schema	Validate the active JSON file immediately.

Setting	Type	Default	Description
`jsonSchemaValidator.schemaPath`	string	`${workspaceFolder}/schemas/schema.json`	Path to the JSON Schema file to use.

"Cannot find module 'minimist'": Run npm install in the extension folder.
"No inputs were found in config file": Ensure your tsconfig.json includes "src/**/*.ts" and that your CLI code is under src/.
macOS Function Keys: Enable function-key mode or remap Debug: Start Debugging in Keyboard Shortcuts.

This project is licensed under the MIT License.