# NousResearch/hermes-agent · CLI stdout flush fix for Windows streaming output

## Open now

- Nothing open on GitHub.

These items address a missing sys.stdout.flush() call in the CLI's _cprint function, which causes streaming output to stall in Windows PowerShell. The fix adds explicit flush calls to all _cprint output paths.

## TL;DR

- 5 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 1 merged PR(s), 3 PR(s) closed without merging.
- A fix was merged to main in PR #121601. Verify it addresses your case.
- **Recommended:** read PR #121601 (and any competing PRs below) before filing. Confirm the merged change covers your symptom.

## 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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 `0.40`: 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.

## Closed / duplicate issues

- #43238: fix(cli): _cprint missing sys.stdout.flush() causes streaming output to stall on Windows PowerShell

## Prior & competing PRs

- **#43244: fix(cli): add sys.stdout.flush() to all _cprint output paths**. closed without merge · fix tier `suggested`
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `#43356`
  - _suggested-tier fix detail withheld; re-request with `?tier=all` to include it._
- **#121601: fix(cli): stream answers after reasoning, no double-render of interrupted streamed replies, line-buffer headless stdout**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`; implication `superseded`
  - files: `hermes_cli/cli_chat_turn_mixin.py`, `hermes_cli/cli_init_mixin.py`, `hermes_cli/cli_stream_mixin.py`, `hermes_logging.py`, `tests/hermes_cli/test_status_lines_held_during_stream_box.py`, `tests/hermes_cli/test_stream_delta_think_tag.py`, `tests/test_hermes_logging.py`
- **#43351: fix(cli): add sys.stdout.flush() to all _cprint output paths**. closed without merge
  - maintainer direction: category `duplicate_of`; implication `duplicate`; refs `#43356`, `#43356`, `#43238`
- **#43356: fix(cli): add sys.stdout.flush() to all _cprint output paths**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `ed805bf328`, `#92281`, `#121601`

## Fix status

- Merged to main in PR #121601 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-09-24`.
- Subsystem: `hermes_cli`