# Prompt Library Implementation (v2.5.0)

**Date**: October 6, 2025  
**Feature**: PromptLibrary - Domain-Specific Translation Expertise  
**Status**: ✅ Complete and Ready for Testing

---

## Overview

Successfully implemented a comprehensive **Prompt Library** system for v2.5.0 that enables users to manage, apply, and share domain-specific custom translation prompts. This transforms Supervertaler from a general-purpose translator into a specialized expert for different fields.

## Why Prompt Library Matters

### The Specialist Translator
Instead of using the same generic translation prompt for all content, the Prompt Library lets you apply domain-specific expertise:

- **Patent Translation**: Technical precision, claim structure, formal register
- **Medical Translation**: Medical terminology, patient safety, regulatory compliance
- **Legal Translation**: Juridical accuracy, legal systems, formal language
- **Marketing Translation**: Creative tone, cultural adaptation, brand voice
- **Financial Translation**: Financial terminology, regulatory requirements

### Real-World Example

**Without Custom Prompts** (Generic translation):
- AI translates "device" as "apparaat" or "toestel" inconsistently
- Legal terms may not match jurisdiction requirements
- Medical terminology might not follow standards

**With Patent Translation Specialist Prompt**:
- AI knows to use "inrichting" for "device" in patents
- Maintains claim dependency relationships
- Uses formal patent register
- Preserves technical accuracy

**Result**: Domain-appropriate translations from the first draft!

---

## How It Works

### 1. Load Domain-Specific Prompts

The library automatically scans two directories:
- **`custom_prompts/`** - Public shared prompts (included with Supervertaler)
- **`custom_prompts_private/`** - Your private client-specific prompts

Each prompt is a JSON file with:
- **Metadata**: Name, description, domain, version
- **Translation Prompt**: Instructions for AI when translating
- **Proofreading Prompt**: Instructions for AI when proofreading

### 2. Browse and Select

The Prompt Library browser shows:
- All available prompts with metadata
- Search/filter functionality
- Preview of prompt content
- Public vs Private indicators

### 3. Apply Active Prompt

When you apply a prompt:
1. It becomes the active translation prompt
2. All subsequent translations use this specialized prompt
3. Status indicator shows which prompt is active
4. Prompt persists until changed or cleared

### 4. Create and Share

You can:
- Create new custom prompts for your needs
- Edit existing prompts
- Import prompts from colleagues
- Export prompts to share with team
- Delete prompts no longer needed

---

## Implementation Details

### Core Components

#### 1. PromptLibrary Class

**File**: Lines ~395-689

**Initialization**:
```python
self.prompt_library = PromptLibrary(self.custom_prompts_dir, log_callback=self.log)
self.prompt_library.load_all_prompts()
```

**Key Methods**:

**`load_all_prompts()`**:
- Scans both custom_prompts and custom_prompts_private directories
- Loads all .json files
- Validates required fields (name, translate_prompt)
- Returns count of loaded prompts

**`get_prompt_list()`**:
- Returns list of all available prompts
- Includes metadata: name, description, domain, version, private status
- Sorted alphabetically

**`search_prompts(search_text)`**:
- Searches in name, description, and domain fields
- Case-insensitive matching
- Returns filtered list

**`set_active_prompt(filename)`**:
- Makes specified prompt active
- Updates active_prompt_name for display
- Returns success/failure

**`clear_active_prompt()`**:
- Deactivates custom prompt
- Returns to default translation prompt

**`get_translate_prompt()`** and **`get_proofread_prompt()`**:
- Return active prompt text
- Return None if using default

**`create_new_prompt(...)`**:
- Creates JSON file from provided data
- Saves to public or private directory
- Adds to loaded prompts
- Returns success/failure

**`update_prompt(...)`**:
- Updates existing prompt file
- Preserves creation date, adds modification date
- Returns success/failure

**`delete_prompt(filename)`**:
- Deletes JSON file
- Clears active if deleting active prompt
- Returns success/failure

**`export_prompt(filename, export_path)`**:
- Copies prompt to specified location
- Useful for sharing

**`import_prompt(import_path, is_private)`**:
- Loads external prompt file
- Validates structure
- Saves to appropriate directory
- Adds to library

#### 2. JSON Prompt Structure

**Example** (Patent Translation Specialist):
```json
{
  "name": "Patent Translation Specialist",
  "description": "Enhanced patent-specific prompts with technical precision and legal accuracy",
  "domain": "Patent/IP",
  "created": "2025-09-08",
  "version": "2.2.0",
  "translate_prompt": "You are an expert {source_lang} to {target_lang} patent translator...",
  "proofread_prompt": "You are an expert patent proofreader..."
}
```

**Required Fields**:
- `name` - Display name
- `translate_prompt` - Translation instructions for AI

**Optional Fields**:
- `description` - Brief description of purpose
- `domain` - Category (Medical, Legal, Patent, etc.)
- `version` - Version number
- `created` - Creation date
- `modified` - Last modification date
- `proofread_prompt` - Proofreading instructions

**Variable Substitution**:
Prompts can include:
- `{source_lang}` - Replaced with source language
- `{target_lang}` - Replaced with target language

#### 3. Prompt Library Browser UI

**Location**: Lines ~7088-7426

**Features**:

**Three-Pane Layout**:
1. **Left Pane**: Prompt list
   - Treeview with columns: Name, Domain, Type
   - Icons: 📄 (public), 🔒 (private)
   - Sorted alphabetically

2. **Middle/Right Pane**: Preview and details
   - Prompt metadata (name, description, domain, version, type)
   - Tabs for Translation Prompt and Proofreading Prompt
   - Read-only text widgets showing full prompt content

3. **Top Bar**: Search and active prompt status
   - Search field (live filtering)
   - Active prompt indicator

**Search Functionality**:
- Type in search box
- Filters prompts in real-time
- Searches name, description, domain

**Selection and Preview**:
- Click any prompt to view details
- Metadata shown above
- Full prompt text shown in tabs
- Scrollable for long prompts

**Action Buttons**:
- **Apply Selected**: Make selected prompt active
- **Use Default**: Clear active prompt, use built-in default
- **New**: Create new custom prompt
- **Edit**: Modify selected prompt
- **Delete**: Remove selected prompt (with confirmation)
- **Import**: Load prompt from external JSON file
- **Export**: Save selected prompt to file
- **Refresh**: Reload all prompts from disk

**Active Prompt Indicator**:
- Green checkmark with name when active
- Gray "Using default prompt" when no custom prompt

#### 4. Prompt Editor UI

**Location**: Lines ~7428-7578

**Features**:

**Metadata Section**:
- Name field (required)
- Description field
- Domain field (e.g., "Medical", "Legal", "Patent")
- Version field
- Private checkbox (determines save location)

**Prompt Editors**:
- **Translation Prompt Tab**: Main translation instructions
- **Proofreading Prompt Tab**: Proofreading instructions
- Both have:
  - Variable hints at top
  - Large text editor
  - Scrollbars for long content
  - Monospace font (Consolas) for readability

**Save Logic**:
- Validates required fields (name, translate_prompt)
- For new prompts: Creates filename from name
- For edits: Updates existing file
- Saves to appropriate directory (public/private)
- Reloads prompt list on success

**Creation vs Edit Mode**:
- Create: Empty fields, choose public/private
- Edit: Pre-filled with existing data, maintains location

### Integration Points

#### Application Initialization

**Location**: Lines ~989-992

```python
# Prompt library (custom domain-specific prompts)
self.prompt_library = PromptLibrary(self.custom_prompts_dir, log_callback=self.log)
self.prompt_library.load_all_prompts()  # Load available prompts on startup
```

**Flow**:
1. Creates PromptLibrary instance
2. Scans both prompt directories
3. Loads all valid JSON prompts
4. Logs count of loaded prompts

#### Menu Access

**Location**: Line 1062 (existing menu item)

```
Translate Menu → Custom Prompts...
```

Clicking this opens the comprehensive Prompt Library browser (not the old simple editor).

#### Translation Workflow

**Apply Prompt**:
```python
def apply_prompt():
    if self.prompt_library.set_active_prompt(selected_prompt['filename']):
        self.current_translate_prompt = self.prompt_library.get_translate_prompt()
        proofread = self.prompt_library.get_proofread_prompt()
        if proofread:
            self.current_proofread_prompt = proofread
```

**Use in Translation** (Line ~7930):
```python
system_prompt = self.current_translate_prompt
```

The translation methods already use `self.current_translate_prompt`, so when a custom prompt is applied, all translations automatically use it.

---

## Pre-Built Prompts

Supervertaler v2.5.0 comes with specialized prompts in the `custom_prompts/` folder:

### 1. Patent Translation Specialist
- **Domain**: Patent/IP
- **Focus**: Technical precision, claim structure, formal register
- **Best For**: Patent applications, technical descriptions, claims

### 2. Medical Translation Specialist
- **Domain**: Medical/Healthcare
- **Focus**: Medical terminology, patient safety, regulatory compliance
- **Best For**: Medical records, clinical trials, pharmaceutical documentation

### 3. Legal Translation Specialist
- **Domain**: Legal/Juridical
- **Focus**: Legal systems, juridical accuracy, formal language
- **Best For**: Contracts, court documents, legal correspondence

### 4. Financial Translation Specialist
- **Domain**: Finance/Banking
- **Focus**: Financial terminology, regulatory requirements
- **Best For**: Financial reports, banking documents, investment materials

### 5. Marketing & Creative Translation
- **Domain**: Marketing/Advertising
- **Focus**: Creative tone, cultural adaptation, brand voice
- **Best For**: Marketing materials, advertisements, creative content

### 6. Gaming & Entertainment Specialist
- **Domain**: Gaming/Entertainment
- **Focus**: Localization, cultural adaptation, player experience
- **Best For**: Game content, entertainment media

### 7. Cryptocurrency & Blockchain Specialist
- **Domain**: Crypto/Blockchain
- **Focus**: Technical blockchain terminology, DeFi concepts
- **Best For**: Crypto whitepapers, blockchain documentation

### 8. Netherlands - Russian Federation BIT
- **Domain**: Legal/Treaty
- **Focus**: Bilateral investment treaty terminology
- **Best For**: Specific treaty translations (example custom client prompt)

---

## Usage Guide

### Basic Workflow

#### Step 1: Open Prompt Library
1. Menu: `Translate → Custom Prompts...`
2. Browser opens showing all available prompts
3. See pre-built prompts in the list

#### Step 2: Browse and Preview
1. Click any prompt to view details
2. Read description to understand purpose
3. View translation prompt in preview
4. Check if proofread prompt available

#### Step 3: Apply a Prompt
1. Select desired prompt
2. Click "✓ Apply Selected"
3. Confirmation shows prompt is now active
4. Top-right indicator shows active prompt name

#### Step 4: Translate with Specialized Prompt
1. Import or open your document
2. Translate segments (Ctrl+T or batch)
3. AI uses specialized domain knowledge
4. Translations match domain requirements

#### Step 5: Switch or Clear
- **Switch**: Apply different prompt anytime
- **Clear**: Click "↺ Use Default" to return to generic prompt

### Creating Custom Prompts

#### For Client-Specific Needs

**Example**: Financial client requires specific terminology

1. Click "➕ New" in Prompt Library
2. Fill metadata:
   - Name: "Client ABC Financial"
   - Description: "ABC Corp financial translation preferences"
   - Domain: "Finance"
   - Version: "1.0"
   - **Check "Private"** (saves to custom_prompts_private)

3. Write Translation Prompt:
```
You are translating financial documents from {source_lang} to {target_lang} 
for ABC Corporation.

Required terminology:
- "revenue" → always use "omzet"
- "profit" → always use "winst"
- "dividend" → always use "dividend" (unchanged)

Maintain formal business register and comply with Dutch GAAP standards.
```

4. Write Proofreading Prompt (optional):
```
Review this financial translation for ABC Corp ensuring:
- Terminology matches ABC's style guide
- Numbers and dates are accurate
- Formal business tone maintained
```

5. Click "💾 Save"
6. Prompt now available in library (marked 🔒 Private)

#### For Domain Expertise

**Example**: Technical manual translation

1. Create new prompt: "Technical Manual Specialist"
2. Domain: "Technical"
3. Translation Prompt emphasizes:
   - Consistent technical terminology
   - Step-by-step clarity
   - Safety warnings preservation
   - Measurement accuracy

4. Save as Public (can share with team)

### Sharing Prompts

#### Export Prompt
1. Select prompt to share
2. Click "📤 Export"
3. Choose save location
4. Send JSON file to colleague

#### Import Prompt
1. Receive JSON file from colleague
2. Click "📥 Import" in Prompt Library
3. Select JSON file
4. Choose Public or Private
5. Prompt added to library

**Use Cases**:
- Share client-specific prompts with project team
- Distribute company-standard prompts to translators
- Back up private prompts to cloud storage

### Editing Prompts

#### Refining Custom Prompts

1. Select prompt to edit
2. Click "✏️ Edit"
3. Modify as needed:
   - Update description
   - Refine translation instructions
   - Add new terminology rules
   - Increment version number
4. Click "💾 Save"
5. Changes take effect immediately

**Note**: Editing updates the JSON file directly. If prompt is currently active, you may want to reapply it to ensure changes are loaded.

### Managing Prompts

#### Deleting Unused Prompts

1. Select prompt to remove
2. Click "🗑️ Delete"
3. Confirm deletion
4. JSON file removed from disk
5. If was active, reverts to default

**Warning**: Deletion is permanent. Export first if you might need it later.

#### Refreshing After Manual Changes

If you manually edit JSON files or add files to directories:
1. Click "🔄 Refresh"
2. Library reloads all prompts from disk
3. New/changed prompts appear in list

---

## Technical Specifications

### Directory Structure

```
Supervertaler/
├── custom_prompts/                # Public shared prompts
│   ├── Patent Translation Specialist.json
│   ├── Medical Translation Specialist.json
│   ├── Legal Translation Specialist.json
│   ├── Financial Translation Specialist.json
│   ├── Marketing & Creative Translation.json
│   ├── Gaming & Entertainment Specialist.json
│   └── Cryptocurrency & Blockchain Specialist.json
│
└── custom_prompts_private/        # Private client-specific prompts
    ├── Client_ABC_Financial.json
    ├── Project_XYZ_Legal.json
    └── README.md
```

### JSON Schema

**Full Example**:
```json
{
  "name": "Medical Translation Specialist",
  "description": "Specialized prompts for medical and healthcare translation",
  "domain": "Medical/Healthcare",
  "created": "2025-09-08",
  "modified": "2025-10-06",
  "version": "1.0",
  "translate_prompt": "You are a medical translation specialist...",
  "proofread_prompt": "You are a medical translation QA specialist..."
}
```

**Field Specifications**:

| Field | Required | Type | Description |
|-------|----------|------|-------------|
| name | ✅ | string | Display name (used in UI) |
| translate_prompt | ✅ | string | AI instructions for translation |
| description | ❌ | string | Brief description of purpose |
| domain | ❌ | string | Category/field (Medical, Legal, etc.) |
| version | ❌ | string | Version number (e.g., "1.0", "2.3.1") |
| created | ❌ | string | Creation date (YYYY-MM-DD) |
| modified | ❌ | string | Last modification date (YYYY-MM-DD) |
| proofread_prompt | ❌ | string | AI instructions for proofreading |

**Internal Fields** (added by PromptLibrary):
- `_filename` - JSON filename
- `_filepath` - Full path to file
- `_is_private` - Boolean, true if in private directory

### Variable Substitution

**Available Variables**:
- `{source_lang}` - Source language (e.g., "English")
- `{target_lang}` - Target language (e.g., "Dutch")

**Usage in Prompts**:
```
"You are translating from {source_lang} to {target_lang}..."
```

**Substitution Happens**: At runtime when prompt is used for translation

### File Naming

**Automatic Naming**:
When creating new prompts, filename is derived from name:
```python
filename = name.replace(' ', '_').replace('/', '_') + '.json'
```

**Examples**:
- "Patent Translation Specialist" → `Patent_Translation_Specialist.json`
- "Client ABC/Legal" → `Client_ABC_Legal.json`

**Manual Naming**:
You can manually create JSON files with any name, as long as they:
- End with `.json`
- Are in `custom_prompts/` or `custom_prompts_private/`
- Have required fields (name, translate_prompt)

### Memory and Performance

**Startup**:
- Loads all prompts on initialization
- Typical: < 1 second for 50 prompts
- Memory: ~1KB per prompt

**Runtime**:
- Active prompt stored in memory
- No reload unless explicitly refreshed
- Minimal overhead

**File Operations**:
- Save: Immediate write to disk
- Delete: Immediate file removal
- Import/Export: Single file copy operation

---

## Use Cases

### 1. Translation Agency Workflow

**Scenario**: Agency handles multiple domains and clients

**Setup**:
1. Install all pre-built domain prompts (already included)
2. Create client-specific prompts in `custom_prompts_private/`
3. Share public prompts with all translators
4. Keep private prompts confidential

**Usage**:
- Medical project → Apply "Medical Translation Specialist"
- Legal contract → Apply "Legal Translation Specialist"
- Client ABC → Apply "Client ABC Financial" (private)

**Benefits**:
- Consistent quality across projects
- Client-specific terminology preserved
- Easy onboarding for new translators

### 2. Freelance Specialist

**Scenario**: Patent translator working on multiple clients

**Setup**:
1. Use "Patent Translation Specialist" as base
2. Create client variations:
   - "Client_Philips_Patents.json" (Philips terminology)
   - "Client_ASML_Patents.json" (ASML terminology)
   - "Client_Generic_Patents.json" (fallback)

**Usage**:
- Switch prompt based on current client
- AI adapts to client preferences automatically

**Benefits**:
- No mental context switching
- Consistent client-specific translations
- Faster turnaround time

### 3. Corporate In-House Team

**Scenario**: Company translates own materials

**Setup**:
1. Create "Company_Brand_Voice.json"
   - Brand terminology
   - Tone guidelines
   - Cultural considerations

2. Create department-specific variants:
   - "Company_Legal.json"
   - "Company_Marketing.json"
   - "Company_Technical.json"

**Usage**:
- All translators use company-standard prompts
- Consistent brand voice across all translations

**Benefits**:
- Brand consistency
- Reduced revision cycles
- Quality assurance built-in

### 4. Research and Academic

**Scenario**: Translating research papers and academic content

**Setup**:
1. Create "Academic_Translation.json"
   - Formal academic register
   - Citation handling
   - Discipline-specific terminology

**Usage**:
- Apply for all academic work
- AI maintains scholarly tone

**Benefits**:
- Appropriate academic style
- Accurate technical terms
- Citation preservation

---

## Advanced Features

### Prompt Versioning

**Track Changes Over Time**:
```json
{
  "name": "Patent Translation Specialist",
  "version": "2.2.0",
  "created": "2025-09-08",
  "modified": "2025-10-06"
}
```

**Benefits**:
- Know which version you're using
- Track improvements
- Roll back if needed (keep old versions)

**Best Practice**:
- Increment version on significant changes
- Use semantic versioning (major.minor.patch)
- Document changes in description

### Combining with Other Features

**Prompt Library + Translation Memory**:
- Custom prompt provides domain expertise
- TM provides terminology consistency
- **Result**: Expert translation with proven terminology

**Prompt Library + Tracked Changes**:
- Custom prompt provides domain knowledge
- Tracked changes provide your editing preferences
- **Result**: Domain-expert translation matching your style

**Prompt Library + Full Document Context**:
- Custom prompt provides domain expertise
- Full context provides situational awareness
- **Result**: Contextually-aware expert translation

**All Four Together** (The Ultimate Setup):
1. Apply domain-specific custom prompt (e.g., Patent Specialist)
2. Load translation memory (proven translations)
3. Load tracked changes (your editing patterns)
4. Enable full document context
5. **Result**: AI translates like YOU would, as a domain expert, with full awareness of document context!

### Prompt Templates

**Creating Reusable Templates**:

Instead of writing prompts from scratch, start with a template:

**Template Example** (`_Template_Domain_Specialist.json`):
```json
{
  "name": "[Domain] Translation Specialist",
  "description": "Specialized prompts for [domain] translation",
  "domain": "[Domain]",
  "version": "1.0",
  "translate_prompt": "You are a [domain] translation specialist with expertise in [specific areas]. Translate from {source_lang} to {target_lang}.\n\nKey requirements:\n- [Requirement 1]\n- [Requirement 2]\n- [Requirement 3]\n\nSpecial attention to:\n- [Aspect 1]\n- [Aspect 2]",
  "proofread_prompt": "You are a [domain] translation QA specialist. Review for:\n- [Criterion 1]\n- [Criterion 2]"
}
```

**How to Use**:
1. Copy template
2. Replace [placeholders]
3. Save as new prompt
4. Customize further as needed

---

## Troubleshooting

### "No prompts loaded"
- **Cause**: No JSON files in custom_prompts directories
- **Solution**: Check that pre-built prompts exist, or create new one

### "Invalid prompt file"
- **Cause**: JSON file missing required fields
- **Solution**: Ensure file has at least "name" and "translate_prompt"

### "Prompt not applying"
- **Cause**: May not have clicked "Apply Selected"
- **Solution**: Select prompt and click "✓ Apply Selected", check indicator

### "Can't edit pre-built prompts"
- **Cause**: Pre-built prompts in custom_prompts are read-only in app
- **Solution**: Export, modify, and import as new prompt OR edit JSON manually

### "Lost custom prompts"
- **Cause**: Deleted accidentally or in wrong directory
- **Solution**: Check custom_prompts_private, restore from backup if available

### "Prompt too long"
- **Cause**: Very long prompts may exceed token limits
- **Solution**: Shorten prompt or split into separate sections

---

## Best Practices

### Prompt Design

**Be Specific**:
- ❌ "Translate this well"
- ✅ "Maintain formal legal register and preserve all clause numbers"

**Include Examples**:
```
When translating patent claims:
- "comprising" → "omvattende" (not "bevatten")
- "wherein" → "waarbij" (not "waarin")
```

**Set Expectations**:
```
Your translations must:
- Preserve all numerical references
- Maintain formal tone
- Flag any ambiguous terms
```

**Domain Context**:
```
You are translating medical consent forms that will be used in a 
Dutch hospital setting. Patient safety is paramount. When in doubt, 
favor clarity over brevity.
```

### Organization

**Naming Convention**:
- Domain: `[Domain]_Translation_Specialist.json`
- Client: `Client_[Name]_[Domain].json`
- Project: `Project_[Name]_[Date].json`

**Directory Structure**:
- Public: General-purpose, shareable prompts
- Private: Client-specific, confidential prompts

**Version Control**:
- Keep old versions: `Prompt_v1.0.json`, `Prompt_v2.0.json`
- Document changes in description field
- Date modifications

### Maintenance

**Regular Review**:
- Monthly: Review active prompts
- Quarterly: Update terminology
- Yearly: Major revision

**Quality Improvement**:
- Collect feedback from translations
- Refine prompts based on common issues
- Share improvements with team

**Backup**:
- Export all custom prompts monthly
- Store in version control (Git)
- Keep copies in cloud storage

---

## Code Locations Quick Reference

| Component | Location (Line #) |
|-----------|-------------------|
| PromptLibrary class | ~395-689 |
| PromptLibrary initialization | ~989-992 |
| show_custom_prompts() - Browser UI | ~7088-7426 |
| create_prompt_editor() - Editor UI | ~7428-7578 |
| apply_prompt() - Apply logic | ~7275-7291 |
| use_default() - Clear active | ~7293-7299 |
| Translation integration | ~7930 (system_prompt) |

---

## JSON Prompt Examples

### Minimal Example
```json
{
  "name": "Simple Custom Prompt",
  "translate_prompt": "Translate carefully from {source_lang} to {target_lang}."
}
```

### Full-Featured Example
```json
{
  "name": "Technical Documentation Specialist",
  "description": "For user manuals, technical guides, and documentation",
  "domain": "Technical/Documentation",
  "created": "2025-10-06",
  "version": "1.0",
  "translate_prompt": "You are a technical documentation translator specializing in user manuals and technical guides. Translate from {source_lang} to {target_lang}.\n\nGuidelines:\n- Use clear, concise language\n- Maintain step-by-step structure\n- Preserve warnings and cautions\n- Keep UI element names consistent\n- Adapt examples to target culture\n\nTerminology:\n- \"click\" → \"klik\" (not \"klikken\")\n- \"button\" → \"knop\"\n- \"menu\" → \"menu\" (unchanged)\n\nTranslate the following:",
  "proofread_prompt": "Review this technical documentation translation for:\n- Clarity and simplicity\n- Consistent UI terminology\n- Proper step formatting\n- Warning/caution preservation\n- Cultural appropriateness of examples\n\nProvide specific corrections and explanations."
}
```

---

## Feature Comparison

| Feature | Simple Prompt Editor (Old) | Prompt Library (New) |
|---------|---------------------------|----------------------|
| Edit single prompt | ✅ | ✅ |
| Multiple prompts | ❌ | ✅ |
| Search prompts | ❌ | ✅ |
| Preview prompts | ❌ | ✅ |
| Metadata (domain, version) | ❌ | ✅ |
| Public/Private separation | ❌ | ✅ |
| Import/Export | ❌ | ✅ |
| Proofread prompts | ❌ | ✅ |
| Active prompt indicator | ❌ | ✅ |
| Pre-built prompts | ❌ | ✅ (8 included) |

---

## Future Enhancements

### Possible Improvements

1. **Prompt Marketplace**
   - Share prompts with community
   - Download prompts from online library
   - Rate and review prompts

2. **Prompt Analytics**
   - Track which prompts are used most
   - Measure translation quality by prompt
   - Suggest best prompt for content type

3. **Smart Prompt Suggestion**
   - Analyze document content
   - Auto-suggest appropriate prompt
   - Learn from user choices

4. **Prompt Chaining**
   - Combine multiple specialized prompts
   - Layer general + specific expertise
   - Advanced use cases

5. **Collaborative Editing**
   - Multi-user prompt editing
   - Change tracking
   - Comments and annotations

---

## Summary

**Prompt Library is now fully functional in v2.5.0!**

This feature transforms Supervertaler from a general translator into a **domain specialist** that adapts to different fields, clients, and requirements.

**Key Achievement**: Comprehensive prompt management system with browser, editor, import/export, and full integration with translation workflow.

**Included Prompts**: 8 pre-built domain-specific prompts covering patents, medical, legal, financial, marketing, gaming, and cryptocurrency translation.

**Ready for**: Immediate use with provided prompts, or create your own custom prompts for specific needs!

---

*Implementation completed: October 6, 2025*  
*Lines of code: ~800*  
*Feature status: ✅ Complete*  
*Testing status: Ready for user validation*
