From 6527c13b5b57b315b3fc3306d54b5770447fbb19 Mon Sep 17 00:00:00 2001
From: Heer Panchal <heerp@gitl.in>
Date: Fri, 15 May 2026 14:34:15 +0530
Subject: [PATCH] feat: detect inconsistent date formats in CV evaluation

---
 packages/core/src/evaluator/index.ts | 26 +++++++++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

diff --git a/packages/core/src/evaluator/index.ts b/packages/core/src/evaluator/index.ts
index 8998979..feb337c 100644
--- a/packages/core/src/evaluator/index.ts
+++ b/packages/core/src/evaluator/index.ts
@@ -185,6 +185,30 @@ function findIssues(cv: string, archetype: RoleArchetype) {
     }
   }
 
+  const DATE_FORMAT_PATTERNS = [
+    { type: "YYYY-MM", regex: /\b\d{4}-\d{2}\b/ },
+    { type: "MM-YYYY", regex: /\b\d{2}-\d{4}\b/ },
+    { type: "YYYY-YYYY", regex: /\b\d{4}\s*-\s*\d{4}\b/ },
+    { type: "Mon YYYY", regex: /\b(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s+\d{4}\b/i }
+  ];
+
+  const formats = new Set<string>();
+
+  for (const { type, regex } of DATE_FORMAT_PATTERNS) {
+    if (regex.test(cv)) {
+      formats.add(type);
+    }
+  }
+
+  if (formats.size > 1) {
+    issues.push({
+      element: "Inconsistent date formats",
+      why: `Multiple formats detected: ${[...formats].join(", ")}`,
+      fix: "Use a consistent format throughout. Recommended: Mon YYYY (e.g., Jan 2022).",
+      severity: "minor",
+    });
+  }
+
   return issues;
 }
 
@@ -225,4 +249,4 @@ function extractKeywords(jd: string): string[] {
     .filter((w) => w.length > 2 && !stopWords.has(w));
 
   return [...new Set(words)];
-}
+}
\ No newline at end of file