# NousResearch/hermes-agent · MoA fallback model resolution and persistence errors

## Open now

- Nothing open on GitHub.

These issues and fixes address a bug where using a MoA preset as a fallback model causes the preset name to be stored instead of the looked-up aggregator slug. Multiple fix attempts refine how the computed MoA model identity is preserved through the fallback chain.

## TL;DR

- 4 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 1 merged PR(s), 2 PR(s) closed without merging.
- A fix was merged to main in PR #113131. Verify it addresses your case.
- **Recommended:** read PR #113131 (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-113131`. 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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.

## Closed / duplicate issues

- #112525: \[Bug\]: fallback to provider=moa keeps the preset name as agent.model — the resolved aggregator slug is discarded

## Prior & competing PRs

- **#113131: fix(agent): a MoA preset in the fallback chain runs the preset, not the aggregator with a virtual identity (#112525, #112623, supersedes #112528 #112532 #112629)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `agent/agent_init.py`, `agent/agent_runtime_helpers.py`, `agent/chat_completion_helpers.py`, `agent/moa_loop.py`, `tests/agent/test_provider_fallback.py`, `website/docs/user-guide/features/fallback-providers.md`, `website/docs/user-guide/features/mixture-of-agents.md`, `website/i18n/zh-Hans/docusaurus-plugin-content-docs/current/user-guide/features/fallback-providers.md`
- **#112528: fix(agent): preserve resolved MoA fallback model**. closed without merge
  - maintainer direction: category `merged_via`; implication `superseded`; refs `#113131`
- **#112532: fix(agent): persist resolved fallback model, not the MoA preset name**. closed without merge
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `c810640a8a`, `#113131`, `#112525`, `#112623`

## Fix status

- Merged to main in PR #113131 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-09-17`.