v1.0.5 - Subagent model discovery

Highlights

Subagent model discovery

Added subagent_list_models, which lists the exact model selectors currently advertised by an
AgentShell agent. Pass a returned selector unchanged to the subagent tool's model parameter.

Model discovery is account- and workspace-aware. An empty result is valid, and a listed model does
not guarantee credentials, quota, or provider availability.

Safe upgrade behaviour

If an installed AgentShell runtime predates model discovery, existing subagent and cancellation
tools remain available. Pi shows how to update the runtime and reload the extension.

Upgrade

Update installed Pi extensions and reload the current session:

pi update --extensions
/reload

The npm package is available as
@scottrbk/pi-agentshell-extension@1.0.5.

Full changelog: v1.0.4...v1.0.5

v1.0.4 - Asynchronous subagents

Highlights

Asynchronous subagents

Subagent calls now return immediately with a Job ID while AgentShell continues working in the
background. Completed results are delivered automatically to the parent conversation as follow-up
messages, so the parent remains available while delegated work runs.

Job cancellation

Running jobs can now be cancelled either by the parent agent with the subagent_cancel tool or by
the user with:

/agentshell-cancel <job-id>

Job IDs are unique and cannot be confused with resumable AgentShell session IDs.

Background-job widget

Pi now displays a compact widget above the editor while jobs are active. It shows up to three jobs
and summarises additional work as +N more. Jobs remain visible while cancellation is completing or
while a finished result is waiting to be delivered.

Named jobs and richer job details

Every subagent call now requires a short task_name of 1–40 characters. The widget and
/agentshell-jobs display the task name together with its harness, model, effort, status, and Job ID.

Important

task_name is a new required parameter for callers using the subagent tool directly.

Other improvements

• Added /agentshell-jobs for inspecting active and delivering jobs.
• Prevented stale Job IDs from referring to unrelated work.
• Added regression coverage for asynchronous execution, cancellation, delivery, metadata, and UI
  state transitions.
• Expanded the README with asynchronous job lifecycle and cancellation guidance.
• Restored the original project architecture diagram.

Upgrade

Update installed Pi extensions and reload the current session:

pi update --extensions
/reload

The npm package is available as
@scottrbk/pi-agentshell-extension@1.0.4.

Full changelog: v1.0.3...v1.0.4