@spec calculate_cost([ClaudeCodeSDK.Message.t()]) :: float()

Calculates total cost from messages.

Examples

messages = ClaudeCodeSDK.query("Analyze code") |> Enum.to_list()
cost = ClaudeCodeSDK.Session.calculate_cost(messages)
# => 0.025

@spec count_turns([ClaudeCodeSDK.Message.t()]) :: non_neg_integer()

Counts conversation turns (assistant messages).

Examples

messages = ClaudeCodeSDK.query("Multi-step task") |> Enum.to_list()
turns = ClaudeCodeSDK.Session.count_turns(messages)
# => 5

@spec extract_model([ClaudeCodeSDK.Message.t()]) :: String.t() | nil

Extracts the model used from messages.

Examples

messages = ClaudeCodeSDK.query("Hello") |> Enum.to_list()
model = ClaudeCodeSDK.Session.extract_model(messages)
# => "claude-sonnet-4-5-20250929"

@spec extract_session_id([ClaudeCodeSDK.Message.t()]) :: String.t() | nil

Extracts the session ID from a list of messages.

Examples

messages = ClaudeCodeSDK.query("Hello") |> Enum.to_list()
session_id = ClaudeCodeSDK.Session.extract_session_id(messages)
# => "550e8400-e29b-41d4-a716-446655440000"

@spec get_summary([ClaudeCodeSDK.Message.t()]) :: String.t()

Gets a summary of the conversation.

Returns first assistant message (truncated to 200 chars).

Examples

messages = ClaudeCodeSDK.query("Build feature") |> Enum.to_list()
summary = ClaudeCodeSDK.Session.get_summary(messages)
# => "I'll help you build that feature. First, let me..."