# NousResearch/hermes-agent · Plugin provider resolution in model switching

## Open now

- Nothing open on GitHub.

These items address a gap where plugin-registered providers (such as Vertex) were not checked during model/provider resolution, causing 'Unknown provider' errors in the model picker and related flows. The work targets the lookup logic to include plugin provider registries alongside built-in ones.

## 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 #116853. Verify it addresses your case.
- **Recommended:** read PR #116853 (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-116853`. 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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.

## Closed / duplicate issues

- #69576: bug(model-switch): resolve_provider_full does not check plugin provider registry — vertex and other plugin-registered providers fail with "Unknown provider" in desktop model picker

## Prior & competing PRs

- **#116853: Plugin providers resolve in /model, the model picker and hermes model, aliases land on the canonical name (#69576, salvage #52549 #54705 #65968 #34368)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `contributors/emails/[redacted:email]`, `hermes_cli/providers.py`, `hermes_cli/runtime_provider.py`, `tests/hermes_cli/test_provider_profile_identity.py`, `website/docs/developer-guide/model-provider-plugin.md`
- **#69993: fix(models): resolve plugin-only providers during switches**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `7072fc4f87e04fccbb30767387bc72ff0bc3f15b`, `052fe7240ab7a78bac740aed8e09bef44acc6756`

## Fix status

- Merged to main in PR #116853 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-09-20`.
- Subsystem: `apps/desktop`