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REAL_USER_MATCHING_DEBUG.md

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Real User Matching Debug Guide

🎯 Issue: Real User Not Showing in Candidate Search

Expected: User with skills (Gemini team, TypeScript, React) should appear in recruiter candidate searches Actual: User not showing up in candidate results

🔧 Fixes Applied

1. Lowered Minimum Match Score

  • ✅ Changed from 30% to 10% minimum match score
  • ✅ This should catch low-confidence matches
  • ✅ Location: src/services/candidate-matching.ts line 81

2. Added Debug Tools

  • ✅ Test Queries button - Tests direct database queries
  • ✅ Clear Cache button - Clears all cached data
  • ✅ Enhanced logging in candidate matching debug API

3. Created Debug Scripts

  • ✅ debug-real-user-matching.js - Comprehensive matching test
  • ✅ verify-fixes.js - Verifies system fixes

🧪 Testing Steps

Step 1: Verify User Exists

  1. Go to recruiter dashboard
  2. Click "Check Real Users" button
  3. Verify user with TypeScript/React skills appears

Step 2: Test Database Queries

  1. Click "Test Queries" button
  2. Check console for detailed candidate data
  3. Verify user appears in query results

Step 3: Clear Caches

  1. Click "Clear Cache" button
  2. This removes any stale cached data
  3. Try candidate search again

Step 4: Test Candidate Matching

  1. Click "Test Matching" button
  2. Check if user appears in matching results
  3. Note the match score

Step 5: Run Debug Script

node debug-real-user-matching.js

🔍 Possible Issues & Solutions

Issue 1: User Skills Not in Database

Symptoms: "Check Real Users" shows 0 users with skills Solution:

  • Verify AI interview properly stored skills
  • Check user_skills table directly
  • Re-run AI interview if needed

Issue 2: Skill Name Mismatch

Symptoms: User exists but doesn't match job requirements Solution:

  • "Gemini team" won't match typical job skills
  • "TypeScript" and "React" should match
  • Check job posting requirements

Issue 3: Match Score Too Low

Symptoms: User matches but score below threshold Solution:

  • ✅ Already lowered to 10% minimum
  • Check actual match score in debug output
  • Consider if partial matches are working

Issue 4: Caching Issues

Symptoms: Old results persist despite changes Solution:

  • ✅ Added "Clear Cache" button
  • Use ?refresh=true parameter in API calls
  • Restart development server if needed

Issue 5: Database Query Issues

Symptoms: Query returns no results Solution:

  • Check database connection
  • Verify table structure matches schema
  • Check for data type mismatches

📊 Expected Debug Output

Successful Case:

✅ Users with skills found: YES (1 user)
✅ Jobs available: YES
✅ Candidate matching works: YES
✅ Direct match API works: YES
✅ Service endpoint works: YES

User: [Name] with skills: TypeScript (85%), React (90%), Gemini team (70%)
Match Score: 15-25% (low but should appear)

Problem Case:

❌ Users with skills found: NO
   → Check if AI interview stored skills properly

OR

✅ Users with skills found: YES
❌ Candidate matching works: NO
   → Check skill name matching or score calculation

🎯 Skill Matching Logic

The system matches skills using:

  1. Exact Match: "TypeScript" = "TypeScript"
  2. Contains Match: "React" matches "React.js"
  3. Synonym Match: "TypeScript" matches "TS"
  4. Fuzzy Match: Partial word matching

Expected Matches for Your User:

  • ✅ "TypeScript" should match TypeScript job requirements
  • ✅ "React" should match React job requirements
  • ❌ "Gemini team" unlikely to match typical job skills

🚀 Next Steps

  1. Run the debug tools to identify the exact issue
  2. Check match scores - even low scores should appear now
  3. Verify job requirements include TypeScript/React
  4. Clear caches if results seem stale
  5. Check console logs for detailed debugging info

📋 Quick Checklist

  • User exists in database (Check Real Users)
  • User has skills stored (Test Queries)
  • Job posting exists with relevant skills
  • Minimum match score is 10% (lowered)
  • Caches are cleared (Clear Cache)
  • Debug scripts run successfully
  • Console shows detailed matching process

If all checks pass but user still doesn't appear, there may be a deeper issue with the candidate matching algorithm or database queries.