# NousResearch/hermes-agent · TUI transport crashes from surrogate encoding and Windows stdout errors

## Open now

- 1 issue, 2 PRs open on GitHub.
- #44287: \[Bug\] TUI crashes with UnicodeEncodeError: surrogates not allowed - infinite spawn-crash loop
- PR #44297: fix(tui): escape surrogates in StdioTransport to prevent UnicodeEncodeError
- PR #55123: fix(tui_gateway): add errno.EINVAL to PEER_GONE_ERRNOS for Windows detached stdout

Most members concern the TUI raising UnicodeEncodeError when surrogate characters are written to the transport stream, with a bug report and fixes that sanitize or escape them. One member adds errno.EINVAL to PEER_GONE_ERRNOS for Windows detached stdout, which is a related but distinct transport error-handling change.

## TL;DR

- 4 member(s): 1 open issue(s), 0 closed issue(s), 2 open PR(s), 0 merged PR(s), 1 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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 `0.50`: 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

- #44287: \[Bug\] TUI crashes with UnicodeEncodeError: surrogates not allowed - infinite spawn-crash loop

## Prior & competing PRs

- **#44376: fix(tui): sanitize surrogates before writing to transport stream (#44287)**. closed without merge · fix tier `suggested`
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `#44297`, `#44287`
  - _suggested-tier fix detail withheld; re-request with `?tier=all` to include it._
- **#44297: fix(tui): escape surrogates in StdioTransport to prevent UnicodeEncodeError**. open
  - maintainer direction: category `uncategorized`; implication `needs_llm`
  - files: `tests/tui_gateway/test_protocol.py`, `tui_gateway/transport.py`
- **#55123: fix(tui_gateway): add errno.EINVAL to PEER_GONE_ERRNOS for Windows detached stdout**. open
  - maintainer direction: category `silent_close`; implication `active`
  - files: `tests/tui_gateway/test_protocol.py`, `tui_gateway/transport.py`

## Fix status

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