diff --git a/lib/inspect/checks/valid.js b/lib/inspect/checks/valid.js
new file mode 100644
index 0000000..32be2b5
--- /dev/null
+++ b/lib/inspect/checks/valid.js
@@ -0,0 +1,59 @@
+const chalk = require('chalk');
+const Check = require('./check');
+
+/**
+ * This checks if known files have a valid format
+ */
+class validCheck extends Check {
+    constructor(connector, reporter) {
+        super(connector, reporter);
+    }
+
+    async check(context, args) {
+        let results = [];
+
+        for (let arg of args) {
+            const type = Object.keys(arg)[0]; // json, yaml, ...
+            const filePath = arg[type];
+
+            // json files
+            if (type === 'json') {
+                // try to read the file
+                const readFile = (await this.connector.exec(`cat ${filePath}`));
+                let valid;
+
+                // if was able to read the file
+                if (readFile.exitCode == 0)
+                    valid = this._validateJSON(readFile.stdout);
+
+                else
+                    valid = readFile.stderr.includes('No such file') ? 'No such file or directory' : readFile.stderr;
+
+                results.push({ type, filePath, valid });
+            }
+        }
+        return results;
+    }
+
+    async report(results) {
+        results.forEach((result) => {
+            let message = chalk`{gray [${result.filePath}]} {white valid:} {gray ${result.valid}}`;
+            this.reporter.report(message, result.valid === true);
+        });
+    }
+
+    _validateJSON(JSONText) {
+        try {
+            JSON.parse(JSONText);
+            return true;
+        } catch (err) {
+            return false;
+        }
+    }
+
+    _validateYAML(YAMLText) {
+        // TODO
+    }
+}
+
+module.exports = validCheck;