# NousResearch/hermes-agent · OSSBackend drops reranker and custom_instructions configs

## Open now

- Nothing open on GitHub.

Bug reports and fixes addressing OSSBackend failing to forward reranker configuration, the rerank parameter, and custom_instructions to Memory.from_config() in self-hosted mode. Multiple related patches were submitted to restore these silently dropped settings.

## TL;DR

- 6 member(s): 0 open issue(s), 3 closed issue(s), 0 open PR(s), 0 merged PR(s), 3 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evidence (`STRUCTURAL_PARTIAL`): some members are connected by structural evidence (shared changed files, or a closing/superseded reference); the rest are joined by an automated relevance judgement over their text.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 `0.31`: 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

- #57263: \[Bug\] OSSBackend ignores reranker config and rerank parameter in self-hosted mode
- #64027: \[Bug\] OSSBackend does not forward custom_instructions to Memory.from_config()
- #68625: mem0 plugin (OSS mode): custom_instructions from mem0.json is silently dropped since v2026.7.20

## Prior & competing PRs

- **#57271: fix(memory): forward reranker config and rerank param in OSSBackend**. closed without merge
  - maintainer direction: category `uncategorized`; implication `needs_llm`; refs `781334eea4`, `#133822`
- **#57451: fix(mem0): forward OSS reranker settings**. closed without merge
  - maintainer direction: category `duplicate_of`; implication `duplicate`; refs `#57271`
- **#64046: fix(mem0): OSSBackend forwards custom_instructions to Memory.from_config (#64027)**. closed without merge
  - maintainer direction: category `uncategorized`; implication `needs_llm`; refs `#71783`

## Fix status

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