# NousResearch/hermes-agent · Session recovery column mapping bug and fixes

## Open now

- Nothing open on GitHub.

A bug where session recovery maps salvaged 'lost_and_found' cells by declared column order rather than physical column names, causing shifted field values. The members cover the bug report and several related fix attempts addressing column mapping and verification status of mis-mapped salvage data.

## TL;DR

- 5 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 2 merged PR(s), 2 PR(s) closed without merging.
- A fix was merged to main in PR #101665. Verify it addresses your case.
- **Recommended:** read PR #101665 (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-101984`. 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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 `0.40`: 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

- #101409: \[Bug\]: sessions recover --allow-partial maps lost_and_found cells onto declared column order, not physical order — every session gets started_at=0 and shifted fields on upgraded DBs

## Prior & competing PRs

- **#101665: fix(recovery): never report a mis-mapped lost_and_found salvage as verified (salvage #101423)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`; implication `superseded`
  - files: `hermes_cli/session_lost_and_found.py`, `hermes_cli/session_recovery.py`, `tests/hermes_cli/test_session_recovery_lost_and_found.py`
- **#101984: Session recovery maps salvaged cells by the store's real column layout (#101409, supersedes #101723)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`; implication `superseded`
  - files: `hermes_cli/session_lost_and_found.py`, `hermes_cli/session_recovery.py`, `hermes_cli/session_schema_history.py`, `tests/hermes_cli/test_session_recovery_lost_and_found.py`, `tests/hermes_cli/test_session_schema_history.py`
- **#101423: fix(cli): flag mis-mapped lost_and_found salvage as not verified**. closed without merge
  - maintainer direction: category `merged_via`; implication `superseded`; refs `#101665`, `#101409`
- **#101723: fix(sessions): map lost_and_found cells by physical column names**. closed without merge
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `58facc4c2a`, `#101984`, `#101665`, `#101984`, `#101409`

## Fix status

- Merged to main in PR #101665 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-09-09`.