feat: include subagent in task_metadata when resuming sessions#1798
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code-yeongyu merged 1 commit intodevfrom Feb 12, 2026
Merged
feat: include subagent in task_metadata when resuming sessions#1798code-yeongyu merged 1 commit intodevfrom
code-yeongyu merged 1 commit intodevfrom
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When delegate-task resumes a session via session_id, the response task_metadata now includes a subagent field identifying which agent was running in the resumed session. This allows the parent agent to know what type of subagent it is continuing. - sync-continuation: uses resumeAgent extracted from session messages - background-continuation: uses task.agent from BackgroundTask object - Gracefully omits subagent when agent info is unavailable
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No issues found across 4 files
Confidence score: 5/5
- Automated review surfaced no issues in the provided summaries.
- No files require special attention.
Auto-approved: Minimal additive changes (2 lines) adding optional subagent metadata to task output. Well-tested with 207 lines of new tests covering both presence and absence cases. No logic modifications, purely UI
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Summary
subagentfield in<task_metadata>when resuming sessions viasession_idin the delegate-task toolProblem
When
delegate-taskresumes a session usingsession_id, the returned<task_metadata>block only containedsession_id. The parent orchestrator (Sisyphus) had no structured way to know which agent type (oracle, explore, librarian, etc.) was being continued.Changes
sync-continuation.tssubagent: {resumeAgent}totask_metadata(uses agent extracted from session message history)background-continuation.tssubagent: {task.agent}totask_metadata(uses agent from BackgroundTask object)sync-continuation.test.tsbackground-continuation.test.tsExample Output (Before → After)
Before:
After:
Testing
Summary by cubic
Adds the subagent to <task_metadata> when resuming a session via session_id so the parent orchestrator can see which subagent is being continued without parsing text.
Written for commit 95aa759. Summary will update on new commits.