continuation.md

Continuing a call

agent.call(prompt, {resume: handle}) continues the thread of a call. resume takes a handle string or a CallResult; a bare object, a copy of a CallResult, null and anything else is a TypeError (crw.classify is the same: there is no implicit "last call"). The continuation inherits role, pair, node and stepDecision from the handle's journal record, adds one turn to the same thread and gets a handle of its own. An explicit value that differs from the inherited one is refused:

• A handle from another run, another role family or another node, and a handle that names no call with a thread in this run, is refused with reason foreign_handle. The run of a handle is judged by the journal row of the call it names, not by the run id written in the handle's text.

• The same role family on another role, a model that is not the thread's model or an alias of it, an effort that is not the thread's effort, or another stepDecision is refused with reason pair_refused.

• A thread whose pair read back wrong when it started (its call was refused with pair_refused) stays refused: continuing it is refused with pair_refused too. A continuation carries the thread's read-back pair, not the role's.

A refused continuation sends nothing to the host.