# NousResearch/hermes-agent · Anti-thrash breaker misfiring on short sessions

## Open now

- Nothing open on GitHub.

These items address a bug where sessions too short to compress incorrectly trip the anti-thrashing breaker, permanently disabling auto-compaction. The group includes a reproduction report, a fix, and a salvage follow-up.

## TL;DR

- 3 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 1 merged PR(s), 1 PR(s) closed without merging.
- A fix was merged to main in PR #93394. Verify it addresses your case.
- **Recommended:** read PR #93394 (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-93394`. 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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 `1.00`: 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

- #93022: Anti-thrashing breaker trips on sessions too short to compress, permanently disabling compaction (repro on v0.20.5)

## Prior & competing PRs

- **#93394: Short sessions no longer permanently disable auto-compaction (#93022, salvage #93093)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `agent/context_compressor.py`, `contributors/emails/[redacted:email]`, `tests/agent/test_compaction_anti_thrash.py`, `tests/agent/test_compression_anti_thrash_persistence.py`, `tests/agent/test_context_compressor_structural_backoff.py`, `tests/agent/test_context_compressor_summary_continuity.py`, `tests/run_agent/test_infinite_compaction_loop.py`
- **#93093: fix(compression): structural no-ops defer retries instead of striking the anti-thrash breaker**. closed without merge
  - maintainer direction: category `merged_via`; implication `superseded`; refs `ac83bb066`, `#93394`

## Fix status

- Merged to main in PR #93394 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-08-24`.