Module: Legion::LLM::Quality::Checker

Extended by:
Legion::Logging::Helper
Defined in:
lib/legion/llm/quality/checker.rb

Defined Under Namespace

Classes: QualityResult

Constant Summary collapse

REPETITION_MIN_LENGTH = 
20
REPETITION_THRESHOLD = 
3
DEFAULT_QUALITY_THRESHOLD = 
50
REFUSAL_PATTERNS = 
[
  /\bI (?:can(?:'t|not)|cannot|won't|am unable to)\b/i,
  /\bI'm not able to\b/i,
  /\bas an AI\b/i,
  /\bI don't have (?:the ability|access)\b/i
].freeze

Class Method Summary collapse

Class Method Details

.check(response, quality_threshold: DEFAULT_QUALITY_THRESHOLD, json_expected: false, quality_check: nil) ⇒ Object 



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# File 'lib/legion/llm/quality/checker.rb', line 26

def check(response, quality_threshold: DEFAULT_QUALITY_THRESHOLD, json_expected: false, quality_check: nil)
  failures = []
  content = effective_content(response)
  has_tool_calls = response.respond_to?(:tool_calls) && response.tool_calls&.any?

  failures << :empty_response if !has_tool_calls && (content.nil? || content.strip.empty?)

  unless failures.include?(:empty_response)
    if quality_setting(:too_short, false) && content.length < quality_threshold
      failures << :too_short
      log.debug "[llm][quality] check=too_short result=fail content_length=#{content.length} threshold=#{quality_threshold}"
    end
    if quality_setting(:repetition, false) && repetitive?(content)
      failures << :repetition
      log.debug "[llm][quality] check=repetition result=fail content_length=#{content.length}"
    end
    if quality_setting(:truncated, false) && truncated?(content)
      failures << :truncated
      log.debug '[llm][quality] check=truncated result=fail'
    end
    if quality_setting(:refusal, false) && refusal?(content)
      failures << :refusal
      log.debug '[llm][quality] check=refusal result=fail'
    end
    if json_expected && !valid_json?(content)
      failures << :json_parse_failure
      log.debug '[llm][quality] check=json_parse result=fail'
    end
  end

  failures << :custom_check_failed if quality_check.respond_to?(:call) && !quality_check.call(response)

  result = QualityResult.new(passed: failures.empty?, failures: failures)
  if result.passed
    log.info "[llm][quality] action=check result=passed content_length=#{content.to_s.length}"
  else
    log.warn "[llm][quality] action=check result=failed failures=#{failures.join(',')}"
  end
  result
end

.effective_content(response) ⇒ Object 



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# File 'lib/legion/llm/quality/checker.rb', line 67

def effective_content(response)
  content = response.respond_to?(:content) ? response.content.to_s : ''
  return content unless content.to_s.strip.empty?

  thinking = response.respond_to?(:thinking) ? response.thinking : nil
  return content unless thinking

  "#{content}#{extract_thinking_content(thinking)}"
rescue StandardError
  content
end

.extract_thinking_content(thinking) ⇒ Object 



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# File 'lib/legion/llm/quality/checker.rb', line 79

def extract_thinking_content(thinking)
  extracted = if thinking.is_a?(Hash)
                normalized = thinking.transform_keys { |key| key.respond_to?(:to_sym) ? key.to_sym : key }
                normalized[:content] || normalized[:text]
              elsif thinking.respond_to?(:content)
                thinking.content
              elsif thinking.respond_to?(:text)
                thinking.text
              else
                thinking
              end
  extracted.to_s.strip
rescue StandardError
  ''
end

.quality_setting(key, default) ⇒ Object 



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# File 'lib/legion/llm/quality/checker.rb', line 95

def quality_setting(key, default)
  value = Legion::Settings.dig(:llm, :quality, key)
  value.nil? ? default : value
end