Class: LangsmithrbRails::Evals::Checks::Correctness

Inherits:
Object
  • Object
show all
Defined in:
lib/generators/langsmithrb_rails/evals/templates/checks/correctness.rb

Overview

Simple correctness check for evaluating LLM responses

Class Method Summary collapse

Class Method Details

.evaluate(input, response, expected) ⇒ Hash

Check if the response is correct

Parameters:

  • input (Hash) —

    Input data

  • response (Hash) —

    Response data

  • expected (Hash) —

    Expected output data

Returns:

  • (Hash) —

    Evaluation result



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# File 'lib/generators/langsmithrb_rails/evals/templates/checks/correctness.rb', line 13

def self.evaluate(input, response, expected)
  result = {
    score: 0.0,
    reasoning: "",
    passed: false
  }
  
  # Extract the answer from the response
  answer = extract_answer(response)
  
  # Check for exact match
  if expected["answer"] && answer == expected["answer"]
    result[:score] = 1.0
    result[:reasoning] = "Exact match with expected answer"
    result[:passed] = true
    return result
  end
  
  # Check for partial matches using contains
  if expected["answer_contains"] && expected["answer_contains"].is_a?(Array)
    matches = expected["answer_contains"].select { |phrase| answer.include?(phrase) }
    match_ratio = matches.size.to_f / expected["answer_contains"].size
    
    result[:score] = match_ratio
    result[:reasoning] = "Matched #{matches.size}/#{expected["answer_contains"].size} expected phrases"
    result[:passed] = match_ratio >= 0.5
    return result
  end
  
  # Check for code snippets
  if expected["code_contains"] && expected["code_contains"].is_a?(Array)
    matches = expected["code_contains"].select { |phrase| answer.include?(phrase) }
    match_ratio = matches.size.to_f / expected["code_contains"].size
    
    result[:score] = match_ratio
    result[:reasoning] = "Code snippet matched #{matches.size}/#{expected["code_contains"].size} expected elements"
    result[:passed] = match_ratio >= 0.5
    return result
  end
  
  # No match found
  result[:reasoning] = "No matching criteria found"
  result
end

.extract_answer(response) ⇒ String

Extract the answer from the response

Parameters:

  • response (Hash) —

    Response data

Returns:

  • (String) —

    Extracted answer



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# File 'lib/generators/langsmithrb_rails/evals/templates/checks/correctness.rb', line 61

def self.extract_answer(response)
  return response["answer"] if response["answer"]
  return response["text"] if response["text"]
  return response["content"] if response["content"]
  return response["output"] if response["output"]
  return response.to_s
end