# NousResearch/hermes-agent · Compression aux-route fallback state re-arming bug

## Open now

- 0 issues, 1 PR open on GitHub.
- PR #137797: fix(compression): retain tool facts and recover the served summary route

A bug where the compression fallback state can remain latched after an auxiliary model access failure, and related fixes to re-arm the auxiliary summary route after recovery or a time window.

## TL;DR

- 7 member(s): 0 open issue(s), 1 closed issue(s), 1 open PR(s), 2 merged PR(s), 3 PR(s) closed without merging.
- A fix was merged to main in PR #133054. Verify it addresses your case.
- **Recommended:** read PR #133054 (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-133040`. 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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 `0.29`: 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

- #123362: \[Bug\]: compression fallback state can remain latched after auxiliary model access failure

## Prior & competing PRs

- **#133040: fix(compression): name the main model when the aux summary falls back**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `agent/context_compressor.py`, `agent/context_compressor_summary.py`, `agent/micro_compaction.py`, `tests/agent/test_compression_auto_summary_fallback.py`, `tests/agent/test_compression_aux_fallback_route.py`, `tests/agent/test_context_compressor.py`
- **#133054: fix(telemetry): compression attempts that could not fail count as skipped, not failed**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `agent/conversation_compression.py`, `agent/conversation_compression_telemetry.py`, `hermes_cli/observability/shared_metrics_events.py`, `tests/agent/test_compression_attempt_telemetry.py`, `tests/agent/test_compression_stall_interrupt.py`, `website/docs/developer-guide/relay-shared-metrics.md`
- **#123539: fix(compression): re-arm the auxiliary summary route after a successful fallback**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `8aea05810b`, `#133040`, `#123362`
- **#123649: fix(compression): make aux-route fallback use the main model and recover after a window (fixes #123362)**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `8aea05810b`, `#133040`, `#123362`
- **#123659: fix(compression): re-arm the aux summary route after a recovered failure (fixes #123362)**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `8aea05810b`, `#133040`, `#123362`
- **#137797: fix(compression): retain tool facts and recover the served summary route**. open
  - maintainer direction: category `silent_close`; implication `active`
  - files: `agent/auxiliary_client.py`, `agent/auxiliary_relay_metadata.py`, `agent/context_compressor.py`, `agent/context_compressor_summary.py`, `agent/conversation_compression.py`, `agent/conversation_compression_ownership.py`, `agent/micro_compaction.py`, `tests/agent/test_auxiliary_relay_codec_label.py`, `tests/agent/test_auxiliary_served_dispatch.py`, `tests/agent/test_compression_adoption_window.py`, `tests/agent/test_compression_boundary_tool_coverage.py`, `tests/agent/test_compression_core2_contract.py`, `tests/agent/test_compression_core2_ownership.py`, `tests/agent/test_compression_full_input_budget.py`, `tests/agent/test_compression_ladder_route_record.py`, `tests/agent/test_compression_tool_result_summary_retention.py`, `tests/agent/test_compression_transport_bound.py`, `tests/agent/test_compression_unpinned_route.py`, `tests/agent/test_context_compressor.py`, `tests/agent/test_lean_single_aux_call.py` (+1 more)

## Fix status

- Merged to main in PR #133054 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-10-05`.
- Subsystem: `agent`