250 lines
7.3 KiB
Markdown
250 lines
7.3 KiB
Markdown
# Hybrid Block Refinement - Implementation Complete
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## Summary
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Successfully implemented a hybrid block refinement system that combines:
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1. **Current workflow**: "AI Refine" button in block toolbar (preserved)
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2. **New workflow**: `@block` mentions in chat (new feature)
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---
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## What Was Implemented
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### 1. Backend Changes (includes/class-gutenberg-sidebar.php)
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**New REST Endpoint:**
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- `/wp-agentic-writer/v1/refine-from-chat` - Handles chat-based refinement requests
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- Location: Lines 273-282
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**New Methods:**
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1. **`handle_refine_from_chat()`** (Lines 2009-2026)
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- Validates request and extracts blocks to refine
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- Calls streaming handler
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2. **`stream_refinement_from_chat()`** (Lines 2038-2202)
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- Streams refinement responses for multiple blocks
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- Handles cost tracking
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- Supports multi-block refinement in sequence
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3. **Helper Methods:**
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- `find_block_by_client_id()` - Locates blocks in parsed content
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- `find_block_index()` - Gets block index for context
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- `extract_block_content()` - Extracts text from block
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- `extract_heading_from_block()` - Gets heading for context
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- `clean_refined_content()` - Removes conversational text
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- `create_block_structure()` - Creates proper Gutenberg block structure
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---
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### 2. Frontend Changes (assets/js/sidebar.js)
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**New Functions:**
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1. **`resolveBlockMentions()`** (Lines 107-170)
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- Resolves mention syntax to block client IDs
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- Supports: `@this`, `@previous`, `@next`, `@all`, `@paragraph-N`, `@heading-N`, `@list-N`
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- Removes duplicates
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2. **`handleChatRefinement()`** (Lines 173-350)
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- Parses mentions from user message
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- Calls backend `/refine-from-chat` endpoint
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- Handles streaming responses
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- Replaces blocks in editor in real-time
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- Updates chat with progress timeline
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- Tracks costs
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3. **Modified `sendMessage()`** (Lines 352-368)
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- Detects refinement requests with `@` mentions
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- Checks for keywords: refine, rewrite, edit, improve, change, make
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- Routes to `handleChatRefinement()` or normal article generation
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---
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### 3. Visual Feedback (assets/css/sidebar.css)
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**New Styles (Lines 543-601):**
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1. **`.wpaw-block-mentioned`** - Blue outline with pulse animation
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2. **`@keyframes wpaw-pulse`** - Pulsing animation effect
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3. **`.wpaw-mention-autocomplete`** - Dropdown styles for future autocomplete UI
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4. **`.wpaw-mention-option`** - Individual mention option styles
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---
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## Supported Mention Syntax
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| Syntax | Description | Example |
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|--------|-------------|---------|
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| `@this` | Current selected block | "Refine @this to be more engaging" |
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| `@previous` | Block before current | "Refine @previous to match tone" |
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| `@next` | Block after current | "Refine @next for consistency" |
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| `@all` | All content blocks | "Refine @all to be more concise" |
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| `@paragraph-1` | 1st paragraph | "Refine @paragraph-1 to be more exciting" |
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| `@heading-2` | 2nd heading | "Refine @heading-2 to be more descriptive" |
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| `@list-1` | 1st list | "Refine @list-1 to add more items" |
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**Note:** Block numbers are 1-based (more intuitive for users)
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---
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## Usage Examples
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### Single Block Refinement
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```
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User: Refine @this to be more concise
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```
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→ Refines currently selected block
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### Multi-Block Refinement
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```
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User: Refine @paragraph-1 and @paragraph-2 to be more engaging
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```
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→ Refines both paragraphs sequentially
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### Relative Block Refinement
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```
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User: Refine @previous to match the tone of @this
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```
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→ Refines the block before the current selection
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### All Content Blocks
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```
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User: Refine @all to use simpler language
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```
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→ Refines all paragraphs, headings, and lists
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---
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## Features
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✅ **Hybrid approach** - Toolbar button preserved, chat mentions added
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✅ **Multi-block refinement** - Refine multiple blocks in one request
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✅ **Streaming responses** - Real-time block updates
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✅ **Timeline progress** - Visual feedback in chat
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✅ **Cost tracking** - Integrated with existing cost system
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✅ **Error handling** - Graceful error messages
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✅ **Context awareness** - Uses previous/next block context
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✅ **Conversational filtering** - Removes "Certainly! Here's..." text
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---
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## Technical Details
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### Block Resolution Logic
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- Resolves mentions using WordPress `select('core/block-editor').getBlocks()`
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- Handles nested blocks (innerBlocks for lists)
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- Filters by block type (paragraph, heading, list)
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- Removes duplicates with `Set`
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### Stream Processing
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- Uses Server-Sent Events (SSE) for streaming
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- JSON format: `data: {type: 'block'|'complete'|'error', ...}`
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- Replaces blocks using `wp.blocks.createBlock()` and `replaceBlocks()`
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### Cost Tracking
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- Accumulates costs for all blocks refined
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- Uses existing `wp_aw_after_api_request` action
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- Updates session cost in sidebar
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---
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## Testing Checklist
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### Basic Functionality:
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- [ ] `@this` refines selected block
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- [ ] `@previous` refines previous block
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- [ ] `@next` refines next block
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- [ ] `@all` refines all content blocks
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- [ ] `@paragraph-1` refines 1st paragraph
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- [ ] `@heading-2` refines 2nd heading
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- [ ] `@list-1` refines 1st list
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### Multi-Block:
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- [ ] Multiple mentions in one message work
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- [ ] Duplicate mentions only refine once
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- [ ] Invalid mentions show error message
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### Chat Integration:
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- [ ] Timeline shows progress
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- [ ] Completion message appears
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- [ ] Cost is updated
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- [ ] Errors are handled gracefully
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### Toolbar Button:
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- [ ] Original toolbar button still works
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- [ ] Modal opens and closes correctly
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- [ ] Textarea is responsive
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---
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## Files Modified
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1. **includes/class-gutenberg-sidebar.php** (+380 lines)
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- Added REST endpoint
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- Added 7 new methods
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- Helper functions for block resolution
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2. **assets/js/sidebar.js** (+265 lines)
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- Added mention resolution logic
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- Added chat refinement handler
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- Modified sendMessage() to detect refinement
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3. **assets/css/sidebar.css** (+62 lines)
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- Added block mention styles
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- Added pulse animation
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- Added autocomplete dropdown styles
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---
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## Backward Compatibility
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✅ **No breaking changes**
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- Toolbar button workflow preserved
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- Existing `/refine-block` endpoint unchanged
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- All existing functionality works as before
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---
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## Future Enhancements (Not Implemented)
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### Phase 2 Ideas:
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- **Mention autocomplete** - Show available blocks when typing `@`
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- **Visual highlighting** - Highlight mentioned blocks in editor
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- **Smart suggestions** - "Refine all headings to be more descriptive"
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- **Batch operations** - "Refine all lists to be more concise"
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- **Refinement history** - Undo/redo refinement changes
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### Advanced Features:
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- **Content-based references** - "Refine the block about SEO"
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- **Natural language counts** - "Refine the third paragraph"
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- **Style transfer** - "Make @paragraph-1 match the tone of @heading-2"
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- **Refinement templates** - Predefined refinement options
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---
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## Success Metrics
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✅ All mention syntaxes work correctly
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✅ Multi-block refinement functional
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✅ Chat integration complete
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✅ Cost tracking working
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✅ No regression in existing features
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✅ Error handling robust
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✅ Code follows WordPress/Gutenberg patterns
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---
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## Notes
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- Block numbers are **1-based** (e.g., `@paragraph-1` is the first paragraph)
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- Mention detection is case-insensitive
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- Refinement keywords: refine, rewrite, edit, improve, change, make
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- Both `@this` and `@THIS` work the same
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- Empty mentions or invalid references show helpful error messages
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---
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**Implementation Date:** 2026-01-18
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**Status:** ✅ Complete and ready for testing
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