Optimize resumes for Applicant Tracking Systems, check ATS compatibility, and analyze keyword match
46
47%
Does it follow best practices?
Impact
—
No eval scenarios have been run
Passed
No known issues
Optimize this skill with Tessl
npx tessl skill review --optimize ./skills/resume-ats-optimizer/SKILL.mdUse this skill when the user wants to:
Also use when the user provides a resume file and mentions they're applying to jobs.
75% of resumes are rejected by Applicant Tracking Systems before a human ever sees them. Companies use ATS to:
Common reasons resumes fail ATS:
Use standard, recognizable headers:
John Smith
email@example.com | (555) 123-4567 | LinkedIn: linkedin.com/in/johnsmith
San Francisco, CANOT in header/footer, and avoid:
Identify three types of keywords:
Hard Skills (Technical)
Soft Skills
Industry Terms
For each keyword in job description:
Match Score = (Keywords Matched / Total Required Keywords) × 100
Example:
Job has 20 required keywords
Your resume has 15 of them
Match Score = 75%
Target: 80%+ for strong matchPriority 1: Professional Summary (Top of Resume)
Priority 2: Skills Section
Priority 3: Experience Bullets
Keyword Density Guidelines:
When analyzing a resume, provide this structured report:
# ATS COMPATIBILITY REPORT
## Overall Score: [X]/100
### File Format Check ✅/❌
- Format: [DOCX/PDF]
- Text extraction: [Success/Failed]
- File size: [X KB/MB]
### Formatting Issues
✅ No tables or columns detected
❌ Contact info in header (move to body)
⚠️ Two different font sizes in skills section
### Keyword Analysis
JOB REQUIREMENTS vs YOUR RESUME:
**Critical Keywords (Must Have):**
✅ Project Management - Found 3x
✅ Agile/Scrum - Found 2x
❌ Stakeholder Management - MISSING (mentioned 5x in JD)
❌ Budget Management - MISSING (mentioned 3x in JD)
**Important Keywords:**
✅ Cross-functional teams - Found 1x
⚠️ "Risk management" - You have "risk mitigation" (close but not exact match)
✅ Process improvement - Found 2x
**Match Score: 65%**
Target: 80%+ recommended
### Recommended Changes
**1. Add Missing Keywords:**
In Professional Summary, change:
"Experienced project manager with proven track record..."
To:
"Experienced project manager with proven track record in stakeholder management and budget oversight..."
In Experience section, add bullet:
"Managed stakeholder communication across 3 departments and executive leadership team"
"Directed budget management for $2.5M project portfolio"
**2. Fix Formatting:**
- Move contact information from header to body of resume
- Make all skill section items same font size (currently 10pt and 11pt mixed)
**3. Strengthen Existing Keywords:**
Change "risk mitigation" to "risk management" for exact match
### Estimated New Match Score: 85%❌ PROBLEM:
[Two-column layout with graphics]
[Skill bars and proficiency charts]
[Text in colored boxes]
✅ SOLUTION:
- Single column layout
- Text-only skills list
- Simple bullet points❌ PROBLEM:
"My Journey" (instead of Experience)
"What I Bring to the Table" (instead of Skills)
"Academic Pursuits" (instead of Education)
✅ SOLUTION:
Use standard headers ATS recognizes❌ PROBLEM:
Job requires: "Python, SQL, Data Visualization"
Resume says: "Programming, databases, making charts"
✅ SOLUTION:
Use exact terminology from job description❌ PROBLEM:
Skills: Python, Python programming, Python developer, Python expert, Python specialist, Advanced Python...
✅ SOLUTION:
Skills: Python, SQL, JavaScript, React, Node.js
(Then incorporate naturally in bullets)When helping user optimize for ATS:
After optimization, the resume should:
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If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.