# NousResearch/hermes-agent · Fix overly restrictive permissions in atomic file writes

## Open now

- Nothing open on GitHub.

A bug report and corresponding fix addressing that _atomic_write in tools/file_operations.py leaves newly created files at 0600 (mkstemp default) without applying the process umask, repeating a known bug class.

## TL;DR

- 4 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 2 merged PR(s), 1 PR(s) closed without merging.
- A fix was merged to main in PR #74918. Verify it addresses your case.
- **Recommended:** read PR #74918 (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: `resolved` · deciding PR(s): `pr-74897`. 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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.

## Closed / duplicate issues

- #70856: tools/file_operations.py::_atomic_write leaves newly-created files at mktemp's 0600, umask never applied (third instance of #14181/#23613's bug class)

## Prior & competing PRs

- **#74897: fix(file_ops): apply umask-default permissions in _atomic_write for new files (#70856)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `tests/tools/test_file_operations.py`, `tools/file_operations.py`
- **#74918: fix(file_ops): replace umask arithmetic with chmod "=rw" — zsh silently corrupts new-file perms**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `tests/tools/test_file_operations.py`, `tools/file_operations.py`
- **#70888: fix(file_ops): apply umask-default permissions in _atomic_write for new files (#70856)**. closed without merge
  - maintainer direction: category `merged_via`; implication `superseded`; refs `fbfee8e40`, `#74897`, `#70856`, `#74918`

## Fix status

- Merged to main in PR #74918 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-07-31`.
- Subsystem: `agent`