Class: Aidp::Harness::RubyLLMRegistry

Inherits:
Object
  • Object
show all
Defined in:
lib/aidp/harness/ruby_llm_registry.rb

Overview

RubyLLMRegistry wraps the ruby_llm gem's model registry to provide AIDP-specific functionality while leveraging ruby_llm's comprehensive and actively maintained model database

Defined Under Namespace

Classes: ModelNotFound, RegistryError

Constant Summary collapse

PROVIDER_NAME_MAPPING =

Map AIDP provider names to RubyLLM provider names Some AIDP providers use different names than the upstream APIs

{
  "codex" => "openai",      # Codex is AIDP's OpenAI adapter
  "anthropic" => "anthropic",
  "gemini" => "gemini",     # Gemini provider name matches
  "aider" => nil,           # Aider aggregates multiple providers
  "cursor" => nil,          # Cursor has its own models
  "openai" => "openai",
  "google" => "gemini",     # Google's API uses gemini provider name
  "azure" => "bedrock",     # Azure OpenAI uses bedrock in registry
  "bedrock" => "bedrock",
  "openrouter" => "openrouter"
}.freeze
TIER_CLASSIFICATION =

Tier classification based on model characteristics These are heuristics since ruby_llm doesn't classify tiers

{
  # Mini tier: fast, cost-effective models
  mini: ->(model) {
    return true if model.id.to_s.match?(/haiku|mini|flash|small/i)

    # Check pricing if available
    if model.pricing
      pricing_hash = model.pricing.to_h
      input_cost = pricing_hash.dig(:text_tokens, :standard, :input_per_million)
      return true if input_cost && input_cost < 1.0
    end
    false
  },

  # Advanced tier: high-capability, expensive models
  advanced: ->(model) {
    return true if model.id.to_s.match?(/opus|turbo|pro|preview|o1/i)

    # Check pricing if available
    if model.pricing
      pricing_hash = model.pricing.to_h
      input_cost = pricing_hash.dig(:text_tokens, :standard, :input_per_million)
      return true if input_cost && input_cost > 10.0
    end
    false
  },

  # Standard tier: everything else (default)
  standard: ->(model) { true }
}.freeze

Instance Method Summary collapse

Constructor Details

#initialize(deprecation_cache: nil) ⇒ RubyLLMRegistry

Returns a new instance of RubyLLMRegistry.



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# File 'lib/aidp/harness/ruby_llm_registry.rb', line 71

def initialize(deprecation_cache: nil)
  @deprecation_cache = deprecation_cache
  @models = load_models_with_utf8_fallback
  @index_by_id = build_id_index(@models)

  # Build family index for mapping versioned names to families
  @family_index = build_family_index

  Aidp.log_info("ruby_llm_registry", "initialized", models: @models.size)
end

Instance Method Details

#classify_tier(model) ⇒ String

Classify a model's tier

Parameters:

  • model (RubyLLM::Model::Info) —

    The model info object

Returns:

  • (String) —

    The tier name (mini, standard, advanced)



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# File 'lib/aidp/harness/ruby_llm_registry.rb', line 212

def classify_tier(model)
  return "advanced" if TIER_CLASSIFICATION[:advanced].call(model)
  return "mini" if TIER_CLASSIFICATION[:mini].call(model)
  "standard"
end

#deprecation_cache ⇒ Object

Get deprecation cache instance (lazy loaded)



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# File 'lib/aidp/harness/ruby_llm_registry.rb', line 34

def deprecation_cache
  @deprecation_cache ||= Aidp::Harness::DeprecationCache.new
end

#find_replacement_model(deprecated_model, provider: nil) ⇒ String?

Find replacement for a deprecated model Returns the cached replacement if available, otherwise finds the latest non-deprecated model in the same family/tier

Parameters:

  • deprecated_model (String) —

    The deprecated model ID

  • provider (String, nil) (defaults to: nil) —

    The provider name (AIDP format)

Returns:

  • (String, nil) —

    Replacement model ID or nil



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# File 'lib/aidp/harness/ruby_llm_registry.rb', line 243

def find_replacement_model(deprecated_model, provider: nil)
  registry_provider = provider ? PROVIDER_NAME_MAPPING[provider] : nil
  return nil unless registry_provider

  # First check the deprecation cache for a stored replacement
  cached_replacement = deprecation_cache.replacement_for(provider: registry_provider, model_id: deprecated_model)
  if cached_replacement
    Aidp.log_info("ruby_llm_registry", "found cached replacement",
      deprecated: deprecated_model,
      replacement: cached_replacement)
    return cached_replacement
  end

  # Determine tier of deprecated model for dynamic lookup
  deprecated_info = @index_by_id[deprecated_model]
  return nil unless deprecated_info

  tier = classify_tier(deprecated_info)

  # Get all non-deprecated models for this tier and provider
  candidates = models_for_tier(tier, provider: provider, skip_deprecated: true)

  # Prefer models in the same family (e.g., both "sonnet")
  family_keyword = extract_family_keyword(deprecated_model)
  same_family = candidates.select { |m| m.to_s.include?(family_keyword) } if family_keyword

  # Return first match from same family, or first candidate overall
  replacement = same_family&.first || candidates.first

  if replacement
    Aidp.log_info("ruby_llm_registry", "found replacement",
      deprecated: deprecated_model,
      replacement: replacement,
      tier: tier)
  end

  replacement
end

#get_model_info(model_id, provider: nil) ⇒ Hash?

Get model information

Parameters:

  • model_id (String) —

    The model ID

  • provider (String, nil) (defaults to: nil) —

    Optional AIDP provider name. When given, returns info for that provider's entry (useful when the same model ID exists under multiple providers, e.g. anthropic and azure).

Returns:

  • (Hash, nil) —

    Model information hash or nil if not found



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# File 'lib/aidp/harness/ruby_llm_registry.rb', line 135

def get_model_info(model_id, provider: nil)
  model = find_model_entry(model_id, provider: provider)
  return nil unless model

  {
    id: model.id,
    name: model.name || model.display_name,
    provider: model.provider.to_s,
    tier: classify_tier(model),
    context_window: model.context_window,
    capabilities: extract_capabilities(model),
    pricing: model.pricing
  }
end

#model_deprecated?(model_id, provider = nil) ⇒ Boolean

Check if a model is deprecated

Parameters:

  • model_id (String) —

    The model ID to check

  • provider (String, nil) (defaults to: nil) —

    The provider name (registry format)

Returns:

  • (Boolean) —

    True if model is deprecated



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# File 'lib/aidp/harness/ruby_llm_registry.rb', line 231

def model_deprecated?(model_id, provider = nil)
  return false unless provider

  deprecation_cache.deprecated?(provider: provider, model_id: model_id.to_s)
end

#models_for_provider(provider) ⇒ Array<String>

Get all models for a provider

Parameters:

  • provider (String) —

    The AIDP provider name

Returns:

  • (Array<String>) —

    List of model IDs



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# File 'lib/aidp/harness/ruby_llm_registry.rb', line 198

def models_for_provider(provider)
  # Map AIDP provider name to RubyLLM provider name
  registry_provider = PROVIDER_NAME_MAPPING[provider]

  # Return empty if provider doesn't map to a registry provider
  return [] if registry_provider.nil?

  @models.select { |m| m.provider.to_s == registry_provider }.map(&:id)
end

#models_for_tier(tier, provider: nil, skip_deprecated: true) ⇒ Array<String>

Get all models for a specific tier

Parameters:

  • tier (String, Symbol) —

    The tier name (mini, standard, advanced)

  • provider (String, nil) (defaults to: nil) —

    Optional AIDP provider filter

  • skip_deprecated (Boolean) (defaults to: true) —

    Skip deprecated models (default: true)

Returns:

  • (Array<String>) —

    List of model IDs for the tier



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# File 'lib/aidp/harness/ruby_llm_registry.rb', line 156

def models_for_tier(tier, provider: nil, skip_deprecated: true)
  tier_sym = tier.to_sym
  classifier = TIER_CLASSIFICATION[tier_sym]

  unless classifier
    Aidp.log_warn("ruby_llm_registry", "invalid tier", tier: tier)
    return []
  end

  # Map AIDP provider to registry provider if filtering
  registry_provider = provider ? PROVIDER_NAME_MAPPING[provider] : nil
  return [] if provider && registry_provider.nil?

  models = @models.select do |model|
    (registry_provider.nil? || model.provider.to_s == registry_provider) &&
      classifier.call(model)
  end

  # For mini and standard tiers, exclude if advanced classification matches
  if tier_sym == :mini
    models.reject! { |m| TIER_CLASSIFICATION[:advanced].call(m) }
  elsif tier_sym == :standard
    models.reject! do |m|
      TIER_CLASSIFICATION[:mini].call(m) || TIER_CLASSIFICATION[:advanced].call(m)
    end
  end

  # Filter out deprecated models if requested
  if skip_deprecated
    models.reject! { |m| deprecation_cache.deprecated?(provider: registry_provider, model_id: m.id.to_s) }
  end

  model_ids = models.map(&:id).uniq
  Aidp.log_debug("ruby_llm_registry", "found models for tier",
    tier: tier, provider: provider, count: model_ids.size)
  model_ids
end

#refresh! ⇒ Object

Refresh the model registry from ruby_llm



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# File 'lib/aidp/harness/ruby_llm_registry.rb', line 219

def refresh!
  RubyLLM::Models.refresh!
  @models = load_models_with_utf8_fallback
  @index_by_id = build_id_index(@models)
  @family_index = build_family_index
  Aidp.log_info("ruby_llm_registry", "refreshed", models: @models.size)
end

#resolve_model(model_name, provider: nil, skip_deprecated: true) ⇒ String?

Resolve a model name (family or versioned) to the canonical API model

Parameters:

  • model_name (String) —

    Model name (e.g., "claude-3-5-haiku" or "claude-3-5-haiku-20241022")

  • provider (String, nil) (defaults to: nil) —

    Optional AIDP provider filter

  • skip_deprecated (Boolean) (defaults to: true) —

    Skip deprecated models (default: true)

Returns:

  • (String, nil) —

    Canonical model ID for API calls, or nil if not found



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# File 'lib/aidp/harness/ruby_llm_registry.rb', line 88

def resolve_model(model_name, provider: nil, skip_deprecated: true)
  # Map AIDP provider to registry provider if filtering
  registry_provider = provider ? PROVIDER_NAME_MAPPING[provider] : nil

  # Check if model is deprecated
  if skip_deprecated && model_deprecated?(model_name, registry_provider)
    Aidp.log_warn("ruby_llm_registry", "skipping deprecated model", model: model_name, provider: provider)
    return nil
  end

  # Try exact match first
  model = @index_by_id[model_name]
  return model.id if model && (registry_provider.nil? || model.provider.to_s == registry_provider)

  # Try family mapping
  family_models = @family_index[model_name]
  if family_models
    # Filter by provider if specified
    family_models = family_models.select { |m| m.provider.to_s == registry_provider } if registry_provider

    # Filter out deprecated models if requested
    if skip_deprecated
      family_models = family_models.reject do |m|
        deprecation_cache.deprecated?(provider: registry_provider, model_id: m.id.to_s)
      end
    end

    # Return the latest version (first non-"latest" model, or the latest one)
    model = family_models.reject { |m| m.id.to_s.include?("-latest") }.first || family_models.first
    return model.id if model
  end

  # Try fuzzy matching for common patterns
  fuzzy_match = find_fuzzy_match(model_name, registry_provider, skip_deprecated: skip_deprecated)
  return fuzzy_match.id if fuzzy_match

  Aidp.log_warn("ruby_llm_registry", "model not found", model: model_name, provider: provider)
  nil
end