# NousResearch/hermes-agent · Config option to control auxiliary model fallback behavior

## Open now

- 1 issue, 1 PR open on GitHub.
- #40565: feat: option to disable auxiliary fallback to the main/local model (fail-closed auxiliary)
- PR #40664: feat(auxiliary): allow_main_fallback to opt out of main-model fallback

These items propose adding an \`allow_main_fallback\` configuration option for the auxiliary model, letting users opt out of falling back to the main or local model when the auxiliary is unavailable.

## 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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

- #40565: feat: option to disable auxiliary fallback to the main/local model (fail-closed auxiliary)

## Prior & competing PRs

- **#40672: feat(agent): add auxiliary.allow_main_fallback config option**. closed without merge · fix tier `suggested`
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `#40664`
  - _suggested-tier fix detail withheld; re-request with `?tier=all` to include it._
- **#40664: feat(auxiliary): allow_main_fallback to opt out of main-model fallback**. open
  - maintainer direction: category `uncategorized`; implication `needs_llm`
  - files: `agent/auxiliary_client.py`, `hermes_cli/config.py`, `tests/agent/test_auxiliary_client.py`

## Fix status

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