# NousResearch/hermes-agent · Optimize dangerous-command detection regex performance

## Open now

- 1 issue, 0 PRs open on GitHub.
- #108451: perf(approval): dangerous-command detection still starves the GIL for seconds on long commands after #104781

These items address performance problems in approval/dangerous-command scanning, specifically preventing quadratic or GIL-starving behavior caused by unbounded regex or pipeline patterns on separator-rich or long input strings.

## TL;DR

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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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

- #108451: perf(approval): dangerous-command detection still starves the GIL for seconds on long commands after #104781

## Prior & competing PRs

- **#108485: fix(approval): bound echo|tr|shell regex to prevent O(n²) on separator-rich input**. closed without merge
  - maintainer direction: category `duplicate_of`; implication `duplicate`; refs `#108451`
- **#108548: fix(approvals): bound tr pipeline gaps to keep dangerous-command scan…**. closed without merge
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `#108485`

## Fix status

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