# NousResearch/hermes-agent · read_file dedup cache: add content hashing beyond mtime

## Open now

- 1 issue, 1 PR open on GitHub.
- #53812: read_file dedup uses mtime only — stale cache on sub-second edits
- PR #53816: fix(tools): verify content hash alongside mtime in read_file dedup (#53812)

These items concern the read_file deduplication cache, which an issue describes as relying on mtime only and so potentially serving stale content after sub-second edits. Two pull requests propose hashing file content, in addition to mtime, for dedup cache entries.

## TL;DR

- 3 member(s): 1 open issue(s), 0 closed issue(s), 1 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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 `0.67`: 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

- #53812: read_file dedup uses mtime only — stale cache on sub-second edits

## Prior & competing PRs

- **#53816: fix(tools): verify content hash alongside mtime in read_file dedup (#53812)**. open
  - maintainer direction: category `uncategorized`; implication `needs_llm`
  - files: `tests/tools/test_file_tools_dedup_hash.py`, `tools/file_tools.py`
- **#54281: fix(files): hash read dedup cache entries**. closed without merge
  - maintainer direction: category `duplicate_of`; implication `duplicate`; refs `#53816`, `#53812`

## Fix status

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