# NousResearch/hermes-agent · SessionDB API signature mismatch bug and fixes

## Open now

- Nothing open on GitHub.

A bug was identified where SessionDB methods had mismatched API signatures causing runtime errors. Related fixes address absorbing extra caller kwargs and correcting signatures in \`_insert_session_row\` and \`append_message\`.

## 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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

- #48531: \[Bug\]: SessionDB API signature mismatch causes runtime errors

## Prior & competing PRs

- **#48610: fix: SessionDB API signature mismatch in _insert_session_row and append_message**. closed without merge
  - maintainer direction: category `merged_via`; implication `superseded`; refs `#47253`, `#20059`
- **#48631: fix(state): absorb extra caller kwargs in SessionDB (#48531)**. closed without merge
  - maintainer direction: category `duplicate_of`; implication `duplicate`; refs `#48610`, `#48531`

## Fix status

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