[FEATURE] Resume Session from ToolUse #1111
Description
Problem Statement
Today, if an agent session is interrupted with the latest message being a toolUse, then the session is essentially unrecoverable. This is because the recovery mechanism is unintuitive and we never direct users on how to recover a session in this case agent().
Proposed Solution
We allow the resumption of an agent with toolUse as the latest message by adding a toolResult error message to the agent. This will be a default behavior built into the existing conversation managers of strands, which will allow users to override this behavior if they decide to.
To do this, we will register conversation managers as hook providers on agents, and on the agentInvoke hook, we will fire this management code.
We will also need to scan the agent.messages and insert a toolResult wherever there is one missing.
Use Case
Agent session interrupted during a session where the latest message is a ToolUse.
Alternatives Solutions
No response
Additional Context
No response