# NousResearch/hermes-agent · Title generation sends unsupported reasoning_effort to custom endpoints

## Open now

- Nothing open on GitHub.

A bug where auxiliary title generation incorrectly forwards the \`reasoning_effort\` parameter to custom or OpenAI-compatible endpoints that don't support it, causing HTTP 400 errors. Multiple fix attempts address omitting or recovering from this parameter rejection on primary and fallback routes.

## TL;DR

- 4 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 2 merged PR(s), 1 PR(s) closed without merging.
- A fix was merged to main in PR #113958. Verify it addresses your case.
- **Recommended:** read PR #113958 (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-113114`. 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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

- #112781: \[Bug\]: Auxiliary title_generation sends top-level \`reasoning_effort\` on custom/OpenAI-compatible endpoints - HTTP 400 on models that don't support it

## Prior & competing PRs

- **#113114: fix(aux): title generation survives custom endpoints that reject reasoning_effort (#112781, supersedes #112789)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `agent/auxiliary_client.py`, `tests/agent/test_auxiliary_reasoning_field_rejection_retry.py`, `website/docs/user-guide/configuration.md`, `website/i18n/zh-Hans/docusaurus-plugin-content-docs/current/user-guide/configuration.md`
- **#113958: fix(aux): title generation recovers from stacked parameter rejections on primary and fallback routes (#78273, #72351, #109774, salvage #72515)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `agent/auxiliary_client.py`, `agent/auxiliary_fallback_recovery.py`, `agent/title_generator.py`, `plugins/model-providers/fireworks/__init__.py`, `tests/agent/test_auxiliary_parameter_rung_chaining.py`, `tests/plugins/model_providers/test_fireworks_profile.py`
- **#112789: fix(agent): omit reasoning effort for custom title routes**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `cbe2413b54c`, `#113958`, `#83390`

## Fix status

- Merged to main in PR #113958 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-09-17`.