Validate Chrome Extension Manifest

Analyze the manifest.json in the current project for:

1. Manifest V3 compliance
2. Required fields
3. Permission issues
4. Store submission readiness
5. Common mistakes

Instructions

1. First, find and read the manifest.json file in the project
2. Perform the validation checks below
3. Report findings in a structured format

Validation Checks

Required Fields (MV3)

• manifest_version = 3
• name (max 45 characters)
• version (valid semver format)
• description (max 132 characters for store)

Icons

• 16x16 icon present
• 48x48 icon present
• 128x128 icon present
• Icon files exist at specified paths

Background (if present)

• Uses service_worker (not scripts or page)
• Service worker file exists
• type: "module" if using ES modules

Content Scripts (if present)

• matches array defined
• Referenced JS/CSS files exist
• run_at is valid (document_idle, document_start, document_end)

Action (if present)

• default_popup file exists (if specified)
• default_icon files exist

Side Panel (if present)

• sidePanel permission included
• default_path file exists

Permissions Analysis

• No deprecated permissions
• Permissions match functionality
• host_permissions properly separated from permissions
• No overly broad permissions without justification

MV3 Compliance

• No background.page or background.scripts
• No browser_action (use action instead)
• No page_action (use action instead)
• CSP compliant (no unsafe-eval, no remote code)

Store Readiness

• Name is unique and descriptive
• Description is clear and complete
• All required icons present
• No policy-violating permissions

Output Format

## Manifest Validation Report

### Status: [PASS/FAIL/WARNINGS]

### Required Fields
| Field | Status | Value/Issue |
|-------|--------|-------------|
| manifest_version | ✅/❌ | |
| name | ✅/❌ | |
| version | ✅/❌ | |
| description | ✅/❌ | |

### Icons
[Status of icon validation]

### Background Service Worker
[Status and issues]

### Permissions
| Permission | Necessary | Justification Needed |
|------------|-----------|---------------------|
| [perm] | Yes/No/Maybe | Yes/No |

### MV3 Compliance Issues
[List any MV2 patterns found]

### Recommendations
1. [High priority fixes]
2. [Improvements]
3. [Suggestions]

### Store Submission Readiness
[Ready/Not Ready] - [Explanation]

Now find and validate the manifest.json file.