# NousResearch/hermes-agent · RedactingFormatter crash on missing session_tag key

## Open now

- 1 issue, 1 PR open on GitHub.
- #91348: \[Bug\]: RedactingFormatter crashes on every log record when a plugin replaces the global record factory (session_tag KeyError) — file logs silently stop
- PR #91352: fix(logging): tolerate records missing session_tag in RedactingFormatter

A bug where RedactingFormatter raises a KeyError when log records lack a session_tag field, plus two proposed fixes to make the formatter tolerate its absence.

## TL;DR

- 4 member(s): 1 open issue(s), 0 closed issue(s), 1 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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 `0.50`: 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.

## Open related issues

- #91348: \[Bug\]: RedactingFormatter crashes on every log record when a plugin replaces the global record factory (session_tag KeyError) — file logs silently stop

## Prior & competing PRs

- **#91352: fix(logging): tolerate records missing session_tag in RedactingFormatter**. open
  - maintainer direction: category `uncategorized`; implication `needs_llm`
  - files: `agent/redact.py`, `tests/test_hermes_logging.py`
- **#91353: fix(redact): default missing session_tag so RedactingFormatter survives factory replacement**. closed without merge
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `#91352`
- **#91978: fix(agent): guard missing session_tag in RedactingFormatter (#91348)**. closed without merge
  - maintainer direction: category `duplicate_of`; implication `duplicate`; refs `#91352`

## Fix status

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