search_modes:
  - name: "regex"  # Moved to top position to be the default
    enabled: true
    description: "Regular expression pattern matching - case insensitive by default. Best for exact terms with variations like CI/CD, CICD, ci-cd, etc."
    weight: 1.2
    options:
      ignore_case: true
      dot_all: false
      unicode: true
      max_pattern_length: 1000
    
  - name: "exact"
    enabled: true
    description: "Basic case-insensitive substring matching - fastest but least flexible. Only matches complete substrings."
    weight: 1.0
    
  - name: "semantic"
    enabled: true
    description: "Meaning-based semantic search - best for concept searching. Finds related messages even when exact words differ."
    weight: 1.8
    options:
      model: "all-MiniLM-L6-v2"  # Lightweight model that works well for general similarity
      cache_embeddings: true
      cache_max_size: 10000  # Maximum number of cached message embeddings
      similarity_threshold: 0.23  # Lower threshold for better recall across all topics
      similarity_metric: "cosine"
  
  - name: "hybrid"
    enabled: true
    description: "Combined search using multiple modes - comprehensive but may be slower. Uses regex, semantic and exact search together."
    weight: 0.8
    modes:
      - "regex"
      - "semantic"
      - "exact"

search:
  default_mode: "hybrid"  # Changed default to hybrid for better overall results
  max_results_per_space: 50
  combine_results_strategy: "weighted_score"
  
  # Hybrid search weights - Adjusted for better performance
  hybrid_weights:
    exact: 1.0
    regex: 1.2
    semantic: 1.8  # Increased weight for semantic search
    
  # For pagination and API limits
  pagination:
    default_page_size: 50
    max_page_size: 100