Kode-cli/intelligent-autocomplete-summary.md
CrazyBoyM 926df2cfaf feat: Ultra-redesign completion system with @mention integration
- Complete architectural overhaul of useUnifiedCompletion hook
- Unified state management: 8 separate states → single CompletionState interface
- Simplified core logic: getWordAtCursor 194 lines → 42 lines (78% reduction)
- Fixed infinite React update loops with ref-based input tracking
- Smart triggering mechanism replacing aggressive auto-completion
- Integrated @agent and @file mention system with system reminders
- Added comprehensive agent loading and mention processing
- Enhanced Tab/Arrow/Enter key handling with clean event management
- Maintained 100% functional compatibility across all completion types

Key improvements:
• File path completion (relative, absolute, ~expansion, @references)
• Slash command completion (/help, /model, etc.)
• Agent completion (@agent-xxx with intelligent descriptions)
• System command completion (PATH scanning with fallback)
• Terminal-style Tab cycling, Enter confirmation, Escape cancellation
• Preview mode with boundary calculation
• History navigation compatibility
• Empty directory handling with user feedback

Architecture: Event-driven @mention detection → system reminder injection → LLM tool usage
Performance: Eliminated 7-layer nested conditionals, reduced state synchronization issues
Reliability: Fixed maximum update depth exceeded warnings, stable state management
2025-08-21 01:21:12 +08:00

3.5 KiB

Intelligent Autocomplete System Enhancements

Overview

Successfully implemented a terminal-like intelligent file autocomplete system with context-aware suggestions and improved @mention detection for files.

Key Improvements

1. Fixed @filename Detection

Problem: Direct @filename didn't work, only @./ and @/ worked Solution: Enhanced file detection in useAgentMentionTypeahead to:

  • Search for files without requiring path separators
  • Check common file extensions automatically
  • Support case-insensitive matching
  • Add file icons (📁 for directories, 📄 for files)

2. Tab Key Conflict Resolution

Problem: Tab key for model switching prevented autocomplete from working Solution: Made Tab key context-aware in PromptInput.tsx:

// Only switch model if no autocomplete is active
if (!hasSlashSuggestions && !hasAgentSuggestions && !hasPathAutocomplete) {
  handleQuickModelSwitch()
}

3. Intelligent Path Autocomplete

New Features:

  • Context Detection: Automatically detects when file completion is needed

    • After file commands (cat, ls, cd, vim, etc.)
    • When typing path-like strings
    • After keywords like "with", "from", "to", "in"
  • Smart Sorting: Files are ranked by relevance

    • Command-specific scoring (cd prefers directories)
    • Common important files get higher scores
    • Current directory files prioritized
    • Hidden files deprioritized unless explicitly requested
  • Visual Feedback: Icons for different file types

    • 📁 Directories
    • 🟨 JavaScript
    • 🔷 TypeScript
    • 📝 Markdown
    • 🐍 Python
    • And more...
  • Seamless Experience:

    • Debounced suggestions while typing (300ms delay)
    • Auto-suggestions for <5 matches
    • Tab completion like terminal
    • Case-insensitive matching

Usage Examples

1. Direct File Mention

Type: @package
Shows: 📄 package.json
Tab completes to: @package.json

2. Command Context

Type: cat pa
Shows: 📄 package.json (automatically)
Tab completes to: cat package.json

3. Directory Navigation

Type: cd s
Shows: 📁 src/
Tab completes to: cd src/

4. Pattern Matching

Type: edit from README
Shows: 📝 README.md
Tab completes the path

Technical Implementation

File Context Detection Algorithm

// Detects file context based on:
1. Command analysis (file-related commands)
2. Path-like patterns (/, ., ~, extensions)
3. Keyword patterns (with, from, to, in, file:)

Intelligent Scoring System

// Scoring factors:
- Command relevance (+100 for cddirectories)
- File importance (+40 for package.json, README.md)
- Location preference (+20 for current directory)
- Visibility (-10 for hidden files)
- Ignore patterns (-50 for node_modules)

Tab Key Priority

1. Slash commands (/command)
2. Agent mentions (@agent-xxx)
3. File paths (context-dependent)
4. Model switching (fallback)

Benefits

  1. No Special Prefix Required: Works like a real terminal
  2. Context-Aware: Understands when you need files
  3. Smart Suggestions: Relevant files appear first
  4. Visual Clarity: Icons show file types at a glance
  5. Non-Intrusive: Only suggests when helpful
  6. Terminal-Like: Familiar Tab completion behavior

Future Enhancements

  1. History-based scoring: Remember frequently used files
  2. Fuzzy matching: Support typos and partial matches
  3. Command-specific filters: More intelligent filtering per command
  4. Multi-select: Select multiple files at once
  5. Preview: Show file contents on hover