# NousResearch/hermes-agent · Guard stderr writes against BrokenPipeError on shutdown

## Open now

- 1 issue, 2 PRs open on GitHub.
- #90434: \[Bug\]: Clean TUI shutdown logs an unhandled BrokenPipeError from _log_exit (unguarded stderr write on the peer-closed path)
- PR #68614: fix(tui-gateway): wrap stderr prints in try/except to prevent BrokenPipeError crash loop
- PR #90445: fix(tui): guard exit loggers against BrokenPipeError on shutdown

These issues and fixes address unhandled BrokenPipeError exceptions occurring when TUI exit/shutdown code writes to stderr after the pipe has been closed by the peer. The proposed fixes wrap the relevant stderr writes in try/except blocks.

## TL;DR

- 3 member(s): 1 open issue(s), 0 closed issue(s), 2 open PR(s), 0 merged PR(s), 0 PR(s) closed without merging.
- No fix has been merged to main; one or more PRs were attempted (see below).
- **Recommended:** review the prior/competing PR(s) below. A fix was attempted but not merged; your case may extend or revive that work.

## Maintainer resolution verdict

- Internal-tracker verdict over this cluster's issue members: `unresolved`. This is distinct from the fix status above. Weigh it yourself.

## How this cluster was grouped

- Link evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.
- Pairwise link density `0.67`: the share of member pairs that carry a link, counting a structural link in full and a relevance-only link at 0.36. `1.00` means every pair is linked.

## Open related issues

- #90434: \[Bug\]: Clean TUI shutdown logs an unhandled BrokenPipeError from _log_exit (unguarded stderr write on the peer-closed path)

## Prior & competing PRs

- **#68614: fix(tui-gateway): wrap stderr prints in try/except to prevent BrokenPipeError crash loop**. open
  - maintainer direction: category `uncategorized`; implication `needs_llm`
  - files: `tests/tui_gateway/test_broken_pipe_resilience.py`, `tui_gateway/entry.py`, `tui_gateway/server.py`
- **#90445: fix(tui): guard exit loggers against BrokenPipeError on shutdown**. open
  - maintainer direction: category `uncategorized`; implication `needs_llm`
  - files: `tests/tui_gateway/test_log_exit_broken_pipe.py`, `tui_gateway/entry.py`, `tui_gateway/slash_worker.py`

## Fix status

- No merged fix on record.
- Subsystem: `gateway`