# NousResearch/hermes-agent · CLI terminal escape sequence leaks and corruption

## Open now

- Nothing open on GitHub.

Multiple bug reports and fixes addressing escape sequence leakage (particularly CPR/DSR cursor position queries), garbled terminal input, and terminal state corruption after interrupting agent runs. Issues span SSH/tunnel environments, local TTYs, and various platform conditions.

## TL;DR

- 8 member(s): 0 open issue(s), 3 closed issue(s), 0 open PR(s), 3 merged PR(s), 2 PR(s) closed without merging.
- A fix was merged to main in PR #53576. Verify it addresses your case.
- **Recommended:** read PR #53576 (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: `partially_resolved` · deciding PR(s): `pr-53576,pr-54058`. This is distinct from the fix status above. Weigh it yourself.

## How this cluster was grouped

- Link evidence (`STRUCTURAL_PARTIAL`): some members are connected by structural evidence (shared changed files, or a closing/superseded reference); the rest are joined by an automated relevance judgement over their text.
- Members outside that structural core may belong to a different underlying problem.
- Pairwise link density `0.22`: 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

- #13870: \[Bug\]: CPR Leak on UI CLI
- #14692: \[Bug\]: CLI input field leaks terminal control sequences (cursor positioning / DSR responses) causing garbled input
- #33271: \[Bug\]: Terminal becomes unresponsive with raw control sequences (e.g., ^\[\[19;1R) after interrupting a running agent with a new message  Version: Hermes CLI (latest)  Platform: macOS / Linux (observed on both)

## Prior & competing PRs

- **#53576: fix(cli): disable prompt_toolkit CPR queries to stop escape-sequence leak (#13870)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`; implication `superseded`
  - files: `cli.py`, `tests/cli/test_cli_init.py`
- **#54058: fix(cli): recover terminal state after interrupting a running turn (#33271)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`; implication `superseded`
  - files: `cli.py`, `tests/cli/test_terminal_interrupt_recovery.py`
- **#68418: fix(cli): suppress CPR on POSIX local TTYs under load**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`; implication `superseded`
  - files: `cli.py`, `tests/cli/test_cli_init.py`, `tests/cli/test_cpr_local_leak.py`
- **#13910: fix(cli): disable CPR queries to prevent escape sequence leak over SSH/tunnels**. closed without merge
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `b34771fc0`, `#53576`, `#53576`
- **#34064: fix(cli): recover terminal state after interrupt to prevent raw control sequence freeze**. closed without merge
  - maintainer direction: category `merged_via`; implication `superseded`; refs `f3aaba7f8`, `#54058`

## Fix status

- Merged to main in PR #53576 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-07-21`.
- Subsystem: `hermes_cli`