# NousResearch/hermes-agent · Memory manager thread-safety and shared instance fixes

## Open now

- Nothing open on GitHub.

These items address a bug where the background review agent creates a duplicate provider instance on the same database, and introduce fixes including sharing the MemoryManager instance and making it thread-safe with a reentrant lock plus multi-provider support.

## TL;DR

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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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

## Closed / duplicate issues

- #5129: bug: background memory review creates second provider instance on same DB

## Prior & competing PRs

- **#5140: fix(agent): share memory manager with background review agent (#5129)**. closed without merge · fix tier `suggested`
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `973f27e95631aaecbda5e32e3fa9e5d7f6a2e1d3`
  - _suggested-tier fix detail withheld; re-request with `?tier=all` to include it._
- **#35551: feat(agent): make MemoryManager thread-safe with RLock + multi-provider support**. closed without merge
  - maintainer direction: category `duplicate_of`; implication `duplicate`; refs `#21466`

## Fix status

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