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use block events for llm stats #902

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Merged
LasmarKhalifa merged 1 commit into from
Jun 2, 2026
+20 −10
Merged

use block events for llm stats #902

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5 changes: 3 additions & 2 deletions lib/roast/cogs/agent.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -48,8 +48,9 @@ class MissingPromptError < AgentCogError; end
#: (Input) -> Output
def execute(input)
output = provider.invoke(input)
puts "[AGENT STATS] #{output.stats}" if config.show_stats?
puts "Session ID: #{output.session}" if config.show_stats?
if config.show_stats?
Event << { block: { header: "AGENT STATS", content: "#{output.stats}\nSession ID: #{output.session}" } }
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end
output
end

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10 changes: 5 additions & 5 deletions lib/roast/cogs/chat.rb
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Expand Up @@ -53,11 +53,11 @@ def execute(input)
end
if config.show_stats?
temperature = chat.instance_variable_get(:@temperature)
puts "[LLM STATS]"
puts "\tModel: #{response.model_id}"
puts "\tTemperature: #{format("%0.2f", temperature)}" if temperature
puts "\tInput Tokens: #{response.input_tokens}"
puts "\tOutput Tokens: #{response.output_tokens}"
lines = ["Model: #{response.model_id}"]
lines << "Temperature: #{format("%0.2f", temperature)}" if temperature
lines << "Input Tokens: #{response.input_tokens}"
lines << "Output Tokens: #{response.output_tokens}"
Event << { block: { header: "LLM STATS", content: lines.join("\n") } }
end

Output.new(Session.from_chat(chat), response.content)
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15 changes: 12 additions & 3 deletions test/examples/functional/roast_examples_test.rb
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Expand Up @@ -114,11 +114,14 @@ class RoastExamplesTest < FunctionalTest
────────────────────────────────────────
12 - 5 = 7
────────────────────────────────────────
[AGENT STATS] Turns: 3
[AGENT STATS]
────────────────────────────────────────
Turns: 3
Duration: 6 seconds
Cost (USD): $0.0747
Tokens (claude-haiku-4-5-20251001): 27 in, 198 out
Session ID: 51c68f29-7210-4c12-852f-0c169f621488
────────────────────────────────────────
((2 + 2) * 3) - 5 = 7
STDOUT
assert_equal expected_stdout, logged_stdout
Expand Down Expand Up @@ -637,11 +640,14 @@ class RoastExamplesTest < FunctionalTest
Ancient waters vast and deep,
World's largest lake gleams.
────────────────────────────────────────
[AGENT STATS] Turns: 1
[AGENT STATS]
────────────────────────────────────────
Turns: 1
Duration: 4 seconds
Cost (USD): $0.050913
Tokens (claude-haiku-4-5-20251001): 9 in, 385 out
Session ID: 6d6782cf-d193-4fc7-b5f4-414bc0cfcd3a
────────────────────────────────────────
STDOUT
assert_equal expected_stdout, logged_stdout
assert_empty logged_stderr
Expand Down Expand Up @@ -688,11 +694,14 @@ class RoastExamplesTest < FunctionalTest
Ancient waters vast and deep,
World's largest lake gleams.
────────────────────────────────────────
[AGENT STATS] Turns: 1
[AGENT STATS]
────────────────────────────────────────
Turns: 1
Duration: 0 seconds
Cost (USD): $0.024634
Tokens (claude-haiku-4-5-20251001): 9 in, 25 out
Session ID: a1b2c3d4-e5f6-7890-abcd-ef1234567890
────────────────────────────────────────
STDOUT
assert_equal expected_stdout, logged_stdout
assert_empty logged_stderr
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