# NousResearch/hermes-agent · Truncation logic bugs causing message loss

## Open now

- Nothing open on GitHub.

These issues and fixes relate to incorrect truncation ordinal/address space handling in gateway state and desktop session history, where stale or mis-aimed truncation values risk silently deleting messages. Multiple recurrences of the same class of bug are represented.

## 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 #82950. Verify it addresses your case.
- **Recommended:** read PR #82950 (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-82950`. 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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

- #82756: \[Bug\]: Desktop plain-Enter submit silently deleted ~65 messages — stale truncate_before_user_ordinal + auto-attached confirm_truncate (3rd occurrence after #70516, #80763)

## Prior & competing PRs

- **#82950: fix(gateway/state): correct the truncate ordinal address space and make rewind truncation recoverable (#82756)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `apps/desktop/src/lib/chat-messages.test.ts`, `apps/desktop/src/lib/chat-messages.ts`, `apps/desktop/src/types/hermes.ts`, `contributors/emails/StanleyStetson@users.noreply.github.com`, `contributors/emails/[redacted:email]`, `hermes_state.py`, `tests/hermes_state/test_replace_messages_archive_siblings.py`, `tests/test_tui_gateway_server.py`, `tui_gateway/methods_prompt.py`, `tui_gateway/methods_session.py`, `tui_gateway/server.py`, `ui-tui/src/domain/messages.ts`, `website/docs/developer-guide/programmatic-integration.md`
- **#82766: fix(desktop): preserve session history using message_id truncation**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `#82756`, `#82811`, `#82950`
- **#82811: fix(gateway/state): fix the truncate ordinal address space and make a mis-aimed rewind recoverable (#82756)**. closed without merge
  - maintainer direction: category `merged_via`; implication `superseded`; refs `#82950`, `#82766`

## Fix status

- Merged to main in PR #82950 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-08-10`.