Smart UI Content Validation Agent

Automates detection of spelling, grammar, formatting, and terminology issues in UI content.

When to use this skill

•QA is testing a web page or UI screen
•User asks to "check this page for errors"
•Before UI release/content freeze
•Reviewing labels, buttons, error messages
•Validating currency, dates, or numeric formats

Workflow

• Capture or receive target webpage/UI URL
• Crawl and extract visible text content
• Categorize content (labels, buttons, errors, descriptions)
• Validate spelling and grammar
• Check formatting consistency (currency, dates, casing)
• Identify terminology inconsistencies
• Generate report with findings and fixes

Instructions

Step 1: Capture UI Content

Methods to extract text:

•Web page: Use headless browser (Playwright/Puppeteer)
•Screenshot + OCR: For non-web UIs
•DOM extraction: JavaScript document.body.innerText

Elements to capture:

•Headings (H1-H6)
•Labels and form placeholders
•Button text
•Error/success messages
•Tooltips and help text
•Modal/dialog content

Step 2: Content Categorization

Group extracted text by type:

Category	Examples	Validation Focus
Navigation	Menu items, breadcrumbs	Consistency, capitalization
Actions	Buttons, links	Verb consistency, clarity
Forms	Labels, placeholders, hints	Completeness, grammar
Feedback	Errors, warnings, success	Tone, helpfulness, grammar
Data	Prices, dates, numbers	Format consistency

Step 3: Validation Checks

Spelling & Grammar

•Check against dictionary
•Grammar rules (subject-verb agreement, tense)
•Common confusions (its/it's, there/their)

Format Validation

Type	Pattern	Example
Currency	`$X.XX` or `USD X.XX`	`$99.99` ✓ `99.99$` ✗
Date	Consistent format	`MM/DD/YYYY` or `DD MMM YYYY`
Time	12h vs 24h consistency	`2:30 PM` vs `14:30`
Phone	`(XXX) XXX-XXXX`	Standard format per region
Percentage	`X%` with consistent decimals	`10%` vs `10.0%`

Terminology Consistency

Create glossary of approved terms:

•"Sign In" vs "Login" vs "Log In"
•"Email" vs "E-mail"
•"OK" vs "Okay" vs "O.K."
•Product name capitalization

Casing Rules

•Title Case: Page titles, section headers
•Sentence case: Descriptions, body text
•UPPERCASE: Acronyms only (avoid shouting)

Step 4: Issue Severity

Severity	Criteria	Action
🔴 Critical	Wrong prices, misleading errors, broken grammar	Block release
🟡 Major	Spelling errors, inconsistent terms	Fix before release
🟢 Minor	Casing inconsistencies, punctuation	Fix in next sprint

Step 5: Report Format

code

UI Content Validation Report
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
Page: https://app.example.com/checkout
Timestamp: 2026-02-20 14:30:00

Summary:
  Total text elements: 45
  Issues found: 7
  Critical: 1 | Major: 3 | Minor: 3

Critical Issues (Fix Immediately):
─────────────────────────────────
🔴 [Price Mismatch] Button "Pay $99.99" vs displayed "$100.00"
   Location: Checkout button
   Suggested: "Pay $100.00"

Major Issues:
─────────────
🟡 [Spelling] "Recieve" should be "Receive"
   Location: Success message
   Current: "You will recieve an email"
   Suggested: "You will receive an email"

🟡 [Terminology] Inconsistent: "Sign In" vs "Login"
   Location: Header uses "Login", button uses "Sign In"
   Suggested: Use "Sign In" everywhere

🟡 [Grammar] "There is errors" → "There are errors"
   Location: Error summary

Minor Issues:
─────────────
🟢 [Casing] "submit" should be "Submit"
   Location: Form button

Glossary Violations:
────────────────────
Found "e-mail" (use "email")
Found "log in" (use "Sign In")

Scripts

Run content extraction and validation:

bash

# Extract and validate
python .agent/skills/validating-ui-content/scripts/ui_validator.py \
  --url https://app.example.com/page \
  --glossary glossary.json \
  --rules rules.json \
  --output report.json

# Validate against screenshot (OCR)
python .agent/skills/validating-ui-content/scripts/ui_validator.py \
  --screenshot page.png \
  --glossary glossary.json

Configuration

glossary.json

json

{
  "preferred_terms": {
    "sign in": ["login", "log in", "signin"],
    "email": ["e-mail", "e mail"],
    "OK": ["okay", "o.k.", "Ok"]
  },
  "format_rules": {
    "currency": "$#,##0.00",
    "date": "MMM DD, YYYY",
    "time": "12h"
  },
  "casing": {
    "buttons": "title",
    "labels": "sentence",
    "headings": "title"
  }
}

Environment Variables

code

SPELLCHECK_LANGUAGE=en-US
CURRENCY_DEFAULT=USD
DATE_FORMAT=MM/DD/YYYY
VALIDATION_STRICTNESS=normal  # strict | normal | relaxed

Example Usage

code

User: "Check the checkout page for content errors"

→ Navigate to /checkout
→ Extract all visible text
→ Validate: spelling, grammar, currency formats
→ Find: "Recieve" typo, "$99.99" vs "$100.00" mismatch
→ Report with line numbers and suggested fixes

Resources

•scripts/ui_validator.py - Main validation engine
•examples/validation_report_example.md - Sample outputs
•examples/glossary_template.json - Terminology guide

Integration Tips

With CI/CD:

yaml

# GitHub Actions example
- name: UI Content Validation
  run: python scripts/ui_validator.py --url ${{ env.STAGING_URL }}
  continue-on-error: false

With JIRA: Create bugs automatically for critical issues:

python

if issue['severity'] == 'critical':
    jira.create_issue(summary=f"Content error: {issue['description']}")