Class: LanguageOperator::Agent::MetricsTracker

Inherits:
Object
  • Object
show all
Defined in:
lib/language_operator/agent/metrics_tracker.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ MetricsTracker

Returns a new instance of MetricsTracker.



8
9
10
11
12
13
14
15
16
17
18
19
20
 
# File 'lib/language_operator/agent/metrics_tracker.rb', line 8

def initialize
  @mutex = Mutex.new
  @metrics = {
    total_input_tokens: 0,
    total_output_tokens: 0,
    total_cached_tokens: 0,
    total_cache_creation_tokens: 0,
    request_count: 0,
    total_cost: 0.0,
    requests: []
  }
  @pricing_cache = {}
end

Instance Attribute Details

#metrics ⇒ Object (readonly)

Returns the value of attribute metrics.



6
7
8
 
# File 'lib/language_operator/agent/metrics_tracker.rb', line 6

def metrics
  @metrics
end

Instance Method Details

#cumulative_stats ⇒ Hash

Get cumulative statistics

Returns:

  • Hash with totalTokens, estimatedCost, requestCount



62
63
64
65
66
67
68
69
70
71
72
73
74
 
# File 'lib/language_operator/agent/metrics_tracker.rb', line 62

def cumulative_stats
  @mutex.synchronize do
    {
      totalTokens: @metrics[:total_input_tokens] + @metrics[:total_output_tokens],
      inputTokens: @metrics[:total_input_tokens],
      outputTokens: @metrics[:total_output_tokens],
      cachedTokens: @metrics[:total_cached_tokens],
      cacheCreationTokens: @metrics[:total_cache_creation_tokens],
      requestCount: @metrics[:request_count],
      estimatedCost: @metrics[:total_cost].round(6)
    }
  end
end

#recent_requests(limit = 10) ⇒ Array<Hash>

Get recent request history

Parameters:

  • (defaults to: 10)

    Number of recent requests to return

Returns:

  • Array of request details



79
80
81
82
83
 
# File 'lib/language_operator/agent/metrics_tracker.rb', line 79

def recent_requests(limit = 10)
  @mutex.synchronize do
    @metrics[:requests].last(limit)
  end
end

#record_request(response, model_id) ⇒ Object

Record token usage from an LLM response

Parameters:

  • RubyLLM response object

  • Model identifier



25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
 
# File 'lib/language_operator/agent/metrics_tracker.rb', line 25

def record_request(response, model_id)
  return unless response

  @mutex.synchronize do
    # Extract token counts with defensive checks
    input_tokens = extract_token_count(response, :input_tokens)
    output_tokens = extract_token_count(response, :output_tokens)
    cached_tokens = extract_token_count(response, :cached_tokens)
    cache_creation_tokens = extract_token_count(response, :cache_creation_tokens)

    # Calculate cost for this request
    cost = calculate_cost(input_tokens, output_tokens, model_id)

    # Update cumulative metrics
    @metrics[:total_input_tokens] += input_tokens
    @metrics[:total_output_tokens] += output_tokens
    @metrics[:total_cached_tokens] += cached_tokens
    @metrics[:total_cache_creation_tokens] += cache_creation_tokens
    @metrics[:request_count] += 1
    @metrics[:total_cost] += cost

    # Store per-request history (limited to last 100 requests)
    @metrics[:requests] << {
      timestamp: Time.now.iso8601,
      model: model_id,
      input_tokens: input_tokens,
      output_tokens: output_tokens,
      cached_tokens: cached_tokens,
      cache_creation_tokens: cache_creation_tokens,
      cost: cost.round(6)
    }
    @metrics[:requests].shift if @metrics[:requests].size > 100
  end
end

#reset! ⇒ Object

Reset all metrics (for testing)



86
87
88
89
90
91
92
93
94
95
96
97
98
99
 
# File 'lib/language_operator/agent/metrics_tracker.rb', line 86

def reset!
  @mutex.synchronize do
    @metrics = {
      total_input_tokens: 0,
      total_output_tokens: 0,
      total_cached_tokens: 0,
      total_cache_creation_tokens: 0,
      request_count: 0,
      total_cost: 0.0,
      requests: []
    }
    @pricing_cache = {}
  end
end