# NousResearch/hermes-agent · ACP reasoning_config handling fixes

## Open now

- Nothing open on GitHub.

These issues and pull requests address bugs in how ACP resolves or applies reasoning_config, including cases where thinking text is lost or reasoning_effort settings are ignored for certain model types.

## TL;DR

- 5 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 1 merged PR(s), 3 PR(s) closed without merging.
- A fix was merged to main in PR #115765. Verify it addresses your case.
- **Recommended:** read PR #115765 (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-115765`. 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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 `0.40`: 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

- #85153: \[Bug\]: ACP ignores reasoning_effort: none for non-reasoning models

## Prior & competing PRs

- **#115765: fix(codex): reasoning_effort none is sent on OpenAI Responses, gpt-4o/4.1 no longer 400 on openai-api, ACP honors reasoning config (#75227, #76255, #85153, salvage #85164)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`; implication `superseded`
  - files: `acp_adapter/session.py`, `agent/auxiliary_client.py`, `agent/curator.py`, `agent/model_metadata.py`, `agent/transports/codex.py`, `contributors/emails/[redacted:email]`, `gateway/slash_commands_session.py`, `plugins/platforms/feishu/feishu_comment.py`, `tests/acp_adapter/test_session_reasoning_config.py`, `tests/agent/test_auxiliary_client.py`, `tests/agent/test_curator.py`, `tests/agent/test_error_classifier.py`, `tests/agent/transports/test_codex_transport.py`, `tests/gateway/test_compress_command.py`, `tests/gateway/test_feishu_comment.py`, `website/docs/user-guide/configuration.md`
- **#85164: fix(acp): resolve reasoning_config for ACP and oneshot agents (#85153)**. closed without merge
  - maintainer direction: category `merged_via`; implication `superseded`; refs `80009fbd6f6d`, `#115765`, `#75227`, `#76255`, `#85153`, `#85164`
- **#89496: fix(acp): resolve reasoning_config so thinking text isn't lost**. closed without merge
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `#100713`, `#100713`, `#100713`
- **#100713: fix(agent): resolve reasoning_config at the init chokepoint, not per call site**. closed without merge
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `#116513`

## Fix status

- Merged to main in PR #115765 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-09-19`.
- Subsystem: `acp`