# NousResearch/hermes-agent · Kimi reasoning_details 400 error misclassification bug

## Open now

- 1 issue, 2 PRs open on GitHub.
- #108071: Kimi coding endpoint: 400 'reasoning_details ... invalid type' not classified as thinking_signature — self-heal never fires, session permanently bricked
- PR #108078: fix(agent): classify Kimi reasoning_details 400 as thinking_signature
- PR #108146: fix(classifier): classify kimi reasoning_details invalid type as thinking_signature

A bug where Kimi's 'reasoning_details invalid type' 400 error is not classified as a thinking_signature error, preventing self-heal logic from firing. The cluster covers the bug report and two fix attempts targeting the classifier and agent layers.

## TL;DR

- 3 member(s): 1 open issue(s), 0 closed issue(s), 2 open PR(s), 0 merged PR(s), 0 PR(s) closed without merging.
- No fix has been merged to main; one or more PRs were attempted (see below).
- **Recommended:** review the prior/competing PR(s) below. A fix was attempted but not merged; your case may extend or revive that work.

## Maintainer resolution verdict

- Internal-tracker verdict over this cluster's issue members: `unresolved`. 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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.

## Open related issues

- #108071: Kimi coding endpoint: 400 'reasoning_details ... invalid type' not classified as thinking_signature — self-heal never fires, session permanently bricked

## Prior & competing PRs

- **#108078: fix(agent): classify Kimi reasoning_details 400 as thinking_signature**. open
  - maintainer direction: category `uncategorized`; implication `needs_llm`; refs `cf8455fca99`
  - files: `agent/error_classifier.py`, `tests/agent/test_error_classifier.py`
- **#108146: fix(classifier): classify kimi reasoning_details invalid type as thinking_signature**. open
  - maintainer direction: category `duplicate_of`; implication `duplicate`; refs `#108078`, `#108071`, `#93035`
  - files: `agent/error_classifier.py`, `tests/agent/test_error_classifier.py`

## Fix status

- No merged fix on record.
- Subsystem: `agent`