# NousResearch/hermes-agent · Kimi K2 HTTP 400 thinking/reasoning_effort conflict fixes

## Open now

- Nothing open on GitHub.

Multiple bug reports and fix attempts addressing HTTP 400 errors when OpenCode Go sends both 'thinking' and 'reasoning_effort' parameters simultaneously to Kimi K2 models. Also includes adjacent work on Moonshot schema cleanup and minor catalog/routing changes for Kimi and related models.

## 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 #18271. Verify it addresses your case.
- **Recommended:** read PR #18271 (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-18271`. 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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

- #16875: \[Bug\]: HTTP 400 error when using kimi-k2.6 model via OpenCode Go in Hermes Agent

## Prior & competing PRs

- **#18271: fix(moonshot): strip null-type anyOf branches + null/empty enum values (salvages #18177)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `agent/moonshot_schema.py`, `scripts/release.py`, `tests/agent/test_moonshot_schema.py`
- **#17011: fix(opencode-go): normalize Kimi and MiMo runtime routing**. closed without merge
  - maintainer direction: category `silent_close`; implication `active`
- **#18177: fix(moonshot): fill missing type before enum cleanup**. closed without merge
  - maintainer direction: category `merged_via`; implication `superseded`; refs `#18271`, `#16875`

## Fix status

- Merged to main in PR #18271 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-05-01`.