Packages
fnord
0.4.40
0.9.40
0.9.39
0.9.38
0.9.37
0.9.36
0.9.35
0.9.34
0.9.33
0.9.32
0.9.31
0.9.30
0.9.29
0.9.28
0.9.27
0.9.26
0.9.25
0.9.24
0.9.23
0.9.22
0.9.21
0.9.20
0.9.19
0.9.18
0.9.17
0.9.16
0.9.15
0.9.14
0.9.13
0.9.12
0.9.11
0.9.10
0.9.9
0.9.8
0.9.7
0.9.6
0.9.5
0.9.4
0.9.3
0.9.2
0.9.1
0.9.0
0.8.99
0.8.98
0.8.97
0.8.96
0.8.95
0.8.94
0.8.93
0.8.92
0.8.91
0.8.90
0.8.89
0.8.88
0.8.87
0.8.86
0.8.85
0.8.84
0.8.83
0.8.82
0.8.81
0.8.80
0.8.79
0.8.78
0.8.77
0.8.76
0.8.75
0.8.74
0.8.73
0.8.72
0.8.71
0.8.70
0.8.69
0.8.68
0.8.67
0.8.66
0.8.65
0.8.64
0.8.63
0.8.62
0.8.61
0.8.60
0.8.59
0.8.58
0.8.57
0.8.56
0.8.55
0.8.54
0.8.53
0.8.52
0.8.51
0.8.50
0.8.49
0.8.48
0.8.47
0.8.46
0.8.45
0.8.44
0.8.43
0.8.42
0.8.41
0.8.40
0.8.39
0.8.38
0.8.37
0.8.36
0.8.35
0.8.34
0.8.33
0.8.32
0.8.31
0.8.30
0.8.29
0.8.27
0.8.26
0.8.25
0.8.24
0.8.23
0.8.22
0.8.21
0.8.20
0.8.19
0.8.18
0.8.17
0.8.16
0.8.15
0.8.14
0.8.13
0.8.12
0.8.11
0.8.1
0.8.0
0.7.24
0.7.23
0.7.22
0.7.21
0.7.20
0.7.19
0.7.18
0.7.17
0.7.16
0.7.15
0.7.14
0.7.13
0.7.12
0.7.11
0.7.10
0.7.9
0.7.8
0.7.7
0.7.6
0.7.5
0.7.3
0.7.2
0.7.1
0.7.0
0.6.9
0.6.8
0.6.7
0.6.6
0.6.5
0.6.4
0.6.3
0.6.1
0.6.0
0.5.9
0.5.8
0.5.7
0.5.6
0.5.5
0.5.4
0.5.3
0.5.2
0.5.1
0.5.0
0.4.44
0.4.43
0.4.42
0.4.41
0.4.40
0.4.39
0.4.38
0.4.37
0.4.36
0.4.35
0.4.34
0.4.33
0.4.32
0.4.30
0.4.29
0.4.28
0.4.27
0.4.26
0.4.25
0.4.24
0.4.23
0.4.22
0.4.21
0.4.20
0.4.19
0.4.18
0.4.17
0.4.16
0.4.15
0.4.14
0.4.13
0.4.12
0.4.11
0.4.10
0.4.9
0.4.8
0.4.7
0.4.6
0.4.5
0.4.4
0.4.3
0.4.2
0.4.1
0.4.0
0.3.0
0.2.0
0.1.0
AI code archaeology
Current section
Files
Jump to
Current section
Files
lib/ai/response.ex
defmodule AI.Response do
@moduledoc """
This module sends a request to the model and handles the response. It is able
to handle tool calls and responses. If the caller includes an `on_event`
function, it will be called whenever a tool call is performed or if a tool
call results in an error.
"""
@type response :: {
:ok,
String.t(),
context_window_usage
}
@type context_window_usage :: {
# "Context window usage"
String.t(),
# "50.00% | 500 / 1000"
String.t()
}
@spec get(AI.t(), keyword) :: response
def get(ai, opts) do
with {:ok, max_tokens} <- Keyword.fetch(opts, :max_tokens),
{:ok, model} <- Keyword.fetch(opts, :model),
{:ok, system} <- Keyword.fetch(opts, :system),
{:ok, user} <- Keyword.fetch(opts, :user) do
tools = Keyword.get(opts, :tools, nil)
on_event = Keyword.get(opts, :on_event, fn _, _ -> :ok end)
use_planner = Keyword.get(opts, :use_planner, false)
%{
ai: ai,
opts: Enum.into(opts, %{}),
max_tokens: max_tokens,
model: model,
use_planner: use_planner,
tools: tools,
on_event: on_event,
messages: [AI.Util.system_msg(system), AI.Util.user_msg(user)],
tool_call_requests: [],
response: nil
}
|> send_request()
|> then(fn state ->
{:ok, state.response, context_window_usage(state)}
end)
end
end
defp context_window_usage(%{model: model, messages: msgs, max_tokens: max_tokens}) do
tokens = msgs |> inspect() |> AI.Tokenizer.encode(model) |> length()
pct = tokens / max_tokens * 100.0
pct_str = Number.Percentage.number_to_percentage(pct, precision: 2)
tokens_str = Number.Delimit.number_to_delimited(tokens, precision: 0)
max_tokens_str = Number.Delimit.number_to_delimited(max_tokens, precision: 0)
{"Context window usage", "#{pct_str} | #{tokens_str} / #{max_tokens_str}"}
end
# -----------------------------------------------------------------------------
# Response handling
# -----------------------------------------------------------------------------
defp send_request(state) do
state
|> maybe_use_planner()
|> get_completion()
|> handle_response(state)
end
def get_completion(state) do
AI.get_completion(state.ai, state.model, state.messages, state.tools)
end
defp handle_response({:ok, :msg, response}, state) do
%{state | response: response}
end
defp handle_response({:ok, :tool, tool_calls}, state) do
%{state | tool_call_requests: tool_calls}
|> handle_tool_calls()
|> send_request()
end
defp handle_response({:error, reason}, state) do
reason =
if is_binary(reason) do
reason
else
inspect(reason)
end
%{
state
| response: """
I encountered an error while processing your request.
The error message was:
#{reason}
"""
}
end
# -----------------------------------------------------------------------------
# Planner
# -----------------------------------------------------------------------------
defp maybe_use_planner(%{use_planner: false} = state) do
state
end
defp maybe_use_planner(%{ai: ai, use_planner: true, messages: msgs, tools: tools} = state) do
UI.report_step("Planning next step(s)")
case AI.Agent.Planner.get_response(ai, %{msgs: msgs, tools: tools}) do
{:ok, response, _usage} ->
UI.report_step("Current plan", response)
planner_msg = AI.Util.system_msg(response)
%{state | messages: state.messages ++ [planner_msg]}
{:error, reason} ->
state.on_event.(:planner_error, reason)
state
end
end
# -----------------------------------------------------------------------------
# Tool calls
# -----------------------------------------------------------------------------
defp handle_tool_calls(%{tool_call_requests: tool_calls} = state) do
{:ok, queue} = Queue.start_link(&handle_tool_call(state, &1))
outputs =
tool_calls
|> Queue.map(queue)
|> Enum.flat_map(fn {:ok, msgs} -> msgs end)
Queue.shutdown(queue)
Queue.join(queue)
%{
state
| tool_call_requests: [],
messages: state.messages ++ outputs
}
end
def handle_tool_call(state, %{id: id, function: %{name: func, arguments: args_json}}) do
request = AI.Util.assistant_tool_msg(id, func, args_json)
UI.debug("Tool call", "#{func} -> #{args_json}")
with {:ok, output} <- perform_tool_call(state, func, args_json) do
response = AI.Util.tool_msg(id, func, output)
{:ok, [request, response]}
else
{:error, reason} ->
state.on_event.(:tool_call_error, {func, args_json, reason})
response = AI.Util.tool_msg(id, func, reason)
{:ok, [request, response]}
end
end
defp perform_tool_call(state, func, args_json) when is_binary(args_json) do
with {:ok, args} <- Jason.decode(args_json) do
state.on_event.(:tool_call, {func, args})
AI.Tools.perform_tool_call(state, func, args)
end
end
end