# NousResearch/hermes-agent · Fix stale cross-model compression snapshot bugs

## Open now

- 1 issue, 1 PR open on GitHub.
- #98975: \[Bug\] Compression counters disagree 2.3x: hygiene "actual" is a stale cross-model snapshot; rough estimate double-counts persisted reasoning blobs
- PR #99017: fix(compression): stop stale snapshots and reasoning blobs from misfiring compaction

These items address bugs where compression counters and compaction triggers misbehave due to stale snapshots being reused across different models and reasoning blobs being double-counted. Fixes enforce model-matching checks before trusting stored compression state.

## TL;DR

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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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

## Open related issues

- #98975: \[Bug\] Compression counters disagree 2.3x: hygiene "actual" is a stale cross-model snapshot; rough estimate double-counts persisted reasoning blobs

## Prior & competing PRs

- **#99017: fix(compression): stop stale snapshots and reasoning blobs from misfiring compaction**. open
  - maintainer direction: category `silent_close`; implication `active`
  - files: `agent/model_metadata.py`, `agent/turn_context.py`, `gateway/run.py`, `gateway/session.py`, `tests/agent/test_model_metadata.py`, `tests/agent/test_native_preflight_estimate.py`, `tests/cli/test_compress_focus.py`, `tests/gateway/test_compress_focus.py`, `tests/gateway/test_session.py`, `tests/gateway/test_session_hygiene.py`
- **#99081: fix(gateway): trust stored compression snapshot only when model matches**. closed without merge
  - maintainer direction: category `uncategorized`; implication `needs_llm`; refs `#99017`, `#98975`

## Fix status

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