Propagate graceful-suspend signals through detached run contexts and let
only opt-in suspendable tools re-attach cancellation, so AsTool sub-agents
can checkpoint and restore across nested trees while leaf tools keep
running detached.
Add focused agent and worker tests for single and multi-level suspend/
restore flows, plus heartbeat lease-loss and nested-restore error paths to
harden functional behavior under failure conditions.
Signed-off-by: Bryan Frimin <bryan@probo.com>
JSON null unmarshals into an empty string, so the presence-only
key check let {"input":null} through, running the nested agent
with a blank user message.
Signed-off-by: Bryan Frimin <bryan@getprobo.com>
jsonSchemaFor panicked on unsupported types, which meant
FunctionTool, NewOutputType, and RunTyped would crash the
process during setup rather than returning a normal error.
Signed-off-by: Bryan Frimin <bryan@getprobo.com>
The agentTool.Execute method accepted {} despite the schema
marking input as required. Unlike functionTool, it skipped
required-field validation, silently sending an empty message
to the sub-agent.
Signed-off-by: Bryan Frimin <bryan@getprobo.com>