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Show provider subagents in the subagents track (#2013)

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* Add provider-owned subagent stream contract

* OpenCode provider: detect child sessions, attach adopted children to the hosting server, synthesize external turns

- Emit internal provider_child_session_detected / provider_session_deleted stream events from the global event stream (before the no-active-turn gate), including BFS hydration of existing descendants on subscribe
- Track child sessions in a registry mapping child session id -> hosting server url; resumeSession attaches via acquireExisting() so adopted children share the parent's server generation and keep receiving live events
- Synthesize external turns for adopted (externally driven) sessions so timeline, tool calls, and permission requests stream without a Paseo-initiated prompt
- Honor launchContext.env in resumeSession (acquireDedicated parity with createSession)
- Stop folding child tool parts into the parent's sub_agent action log; the parent row stays as a pointer

* Render provider subagents in workspace timelines

* fix provider subagent timeline reliability

* fix provider subagent lifecycle edge cases

* fix provider subagent event fidelity

* Fix provider subagent history fidelity

* Fix restored provider subagent state

* Fix provider subagent visibility edges

* Restore provider subagent timelines

* Page provider subagent history

* Forward subagent questions reliably

* fix(subagents): preserve OpenCode child context

* fix(subagents): harden provider timeline routing

* fix(subagents): preserve provider page continuity

* fix(subagents): retain live child prompts

---------

Co-authored-by: Omer <639682+omercnet@users.noreply.github.com>
This commit is contained in:
Mohamed Boudra
2026-07-12 21:13:00 +02:00
committed by GitHub
parent 41d882859c
commit 66445adc07
46 changed files with 5056 additions and 337 deletions
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12
docs/agent-lifecycle.md
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@@ -71,13 +71,21 @@ Workspace status is an aggregate activity signal computed **per `workspaceId`**:
## The subagents track
The collapsible track above the composer in an agent's pane (`packages/app/src/subagents/track.tsx`). Membership rule (`packages/app/src/subagents/select.ts`):
The collapsible track above the composer in an agent's pane (`packages/app/src/subagents/track.tsx`) combines two kinds of children:
- **Paseo subagents** are full managed agents. Their membership rule (`packages/app/src/subagents/select.ts`) is:
```
parentAgentId === thisAgent.id AND !archivedAt
```
Archived subagents disappear from the track, by design. To remove a subagent from the track without closing its tab, use the **archive button (X)** on the row — it opens a confirm dialog and archives the subagent on confirm. That same archive shows the subagent leave the track on every connected client.
- **Provider subagents** are child executions owned by Claude, Codex, or OpenCode. They are not inserted into `AgentManager` as managed agents. Providers emit a separate descriptor and timeline stream through `agent.provider_subagents.*`; the client keeps that state outside the normal agent store and merges only the presentation rows into the track.
Clicking either kind opens a workspace tab. A Paseo subagent tab is a normal interactive agent pane. A provider subagent tab is a read-only timeline pane with no composer, archive, detach, rewind, or fork actions. Both panes use `AgentStreamView`, so message, reasoning, tool-call, and layout rendering stay identical.
Provider timelines use the same structural timeline item format but deliberately have a separate lifecycle and transport. A provider thread/session identifier is not a Paseo agent identifier, and closing its tab is always layout-only.
Archived Paseo subagents disappear from the track, by design. To remove one from the track without closing its tab, use the **archive button (X)** on the row — it opens a confirm dialog and archives the subagent on confirm. Provider-owned rows have no Paseo lifecycle controls and disappear only when the provider removes them or the parent session is discarded.
To keep the agent alive but remove it from the parent's track, use **detach**. The daemon clears the parent label, emits the normal agent update, and every client reclassifies the agent from subagent to root/sibling from that updated snapshot.