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The following comment was made by an LLM, it may be inaccurate:

Based on the search results, here are potentially related PRs:

Related PRs (not duplicates, but addressing similar areas):

1. #15993 - fix(tui): restore nested subagent navigation without changing inline task UI

   • Addresses nested subagent navigation, which is related to the session visibility and navigation improvements in this PR

2. #14043 - feat(web): Show subagents under parent session, allow intuitive navigation between

   • Directly related to rendering subagents as nested sessions instead of flat lists

3. #13719 - fix: render permission and question prompts from nested subagent session

   • Related to nested subagent session handling and rendering

4. #7756 - feat(task): Add subagent-to-subagent delegation with budgets, persistent sessions, and hierarchical session navigation

   • Historical feature PR on hierarchical session navigation, foundational to this work

These PRs all deal with subagent session management and hierarchy, but PR #17855 appears to be the current work on this topic. The search confirms no exact duplicate PRs exist.

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