# NousResearch/hermes-agent · Gemini tool schema array enum crash fixes

## Open now

- Nothing open on GitHub.

A bug where array-typed parameter schemas with enum values caused a TypeError crash during Gemini tool translation. Multiple fixes address sanitization and schema collapsing to handle this case.

## 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 #105545. Verify it addresses your case.
- **Recommended:** read PR #105545 (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-105545`. 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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

- #55645: Native Gemini tool translation crashes (TypeError: unhashable type: 'list') on array-typed parameter schemas with an enum

## Prior & competing PRs

- **#105545: fix: native Gemini tool calls survive nullable and union parameters (salvage #55643)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`; implication `superseded`
  - files: `agent/gemini_schema.py`, `contributors/emails/[redacted:email]`, `evals/gemini_type_array_probe.py`, `tests/agent/test_gemini_type_arrays.py`, `website/docs/guides/google-gemini.md`
- **#55643: fix(gemini): collapse array-typed tool schemas instead of crashing translation**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `0d6106eab8a5b8afc3357d6e1030723b8be129f2`
- **#55666: fix(agent): handle list type in Gemini schema enum sanitization**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `0d6106eab8a5b8afc3357d6e1030723b8be129f2`
- **#55691: fix(agent): guard Gemini enum sanitizer for array types**. closed without merge
  - maintainer direction: category `duplicate_of`; implication `duplicate`; refs `#55666`, `#55645`, `#55666`, `#55643`

## Fix status

- Merged to main in PR #105545 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-09-08`.
- Subsystem: `agent`