# NousResearch/hermes-agent · ACP empty session rows persisting in database

## Open now

- Nothing open on GitHub.

These issues and fixes address a bug where ACP model-discovery probe sessions create empty, promptless history rows that accumulate in the state database. The changes aim to prevent such sessions from being persisted and to clean up legacy empty entries.

## TL;DR

- 4 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 1 merged PR(s), 2 PR(s) closed without merging.
- A fix was merged to main in PR #104929. Verify it addresses your case.
- **Recommended:** read PR #104929 (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-104929`. 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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

- #104724: \[Bug\]: ACP mints a permanent empty session row for every session/new that never receives a prompt (editor model-discovery probes flood state.db)

## Prior & competing PRs

- **#104929: fix(acp): discovery sessions no longer leave empty history rows (#104724, salvage #104726)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `acp_adapter/session.py`, `contributors/emails/5318600+Willhong@users.noreply.github.com`, `evals/acp_empty_session_wire.py`, `tests/acp/test_empty_session_persistence.py`, `tests/acp/test_session_db_private_access.py`, `website/docs/user-guide/features/acp.md`
- **#104726: fix(acp): stop persisting sessions that never received a prompt**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `780aee0deb96e14fffe9e120ac2d967682739652`, `64fda8c73fd84e21c76446dadc1bc0152cd493a6`, `#104929`
- **#104739: fix(acp): never persist empty probe sessions; prune can sweep legacy ACP shells (#104724)**. closed without merge
  - maintainer direction: category `uncategorized`; implication `needs_llm`; refs `#104726`, `#104724`

## Fix status

- Merged to main in PR #104929 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-09-07`.