Execution context passed to every tool (SPEC §1).
answer is set only on the §10 re-execution after a wait_for resolved a suspension.
signal is the cooperative cancellation token: a zero-arity predicate
(aborted when it returns true — the caller owns the backing state) or a pid
(aborted when the process is no longer alive). nil means never cancelled.
Summary
Types
@type t() :: %Toolnexus.Context{ agent: String.t() | nil, answer: Toolnexus.Answer.t() | nil, call_id: String.t() | nil, extra: map() | nil, message_id: String.t() | nil, session_id: String.t() | nil, signal: (-> boolean()) | pid() | nil, timeout: non_neg_integer() | nil }