# NousResearch/hermes-agent · Schema sanitizer drops array/object default and const values

## Open now

- 1 issue, 2 PRs open on GitHub.
- #55077: schema_sanitizer rewrites array/object default and const values into empty-object schemas
- PR #55078: Preserve literal default and const values in tool schema sanitizer
- PR #56371: fix(tools): preserve array/object default and const values in schema_sanitizer

These issues and PRs concern a bug where the schema sanitizer incorrectly rewrites or discards literal array and object values in 'default' and 'const' schema fields. The members focus on identifying and fixing this specific data-loss behavior.

## TL;DR

- 4 member(s): 1 open issue(s), 0 closed issue(s), 2 open PR(s), 0 merged PR(s), 1 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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 `0.50`: 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.

## Open related issues

- #55077: schema_sanitizer rewrites array/object default and const values into empty-object schemas

## Prior & competing PRs

- **#55078: Preserve literal default and const values in tool schema sanitizer**. open
  - maintainer direction: category `uncategorized`; implication `needs_llm`
  - files: `tests/tools/test_schema_sanitizer.py`, `tools/schema_sanitizer.py`
- **#55218: fix: preserve default and const values in schema sanitizer**. closed without merge
  - maintainer direction: category `duplicate_of`; implication `duplicate`; refs `#55078`
- **#56371: fix(tools): preserve array/object default and const values in schema_sanitizer**. open
  - maintainer direction: category `duplicate_of`; implication `duplicate`; refs `#55078`, `#55077`
  - files: `tests/tools/test_schema_sanitizer.py`, `tools/schema_sanitizer.py`

## Fix status

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