# NousResearch/hermes-agent · Recursion depth limit in tool-argument walker

## Open now

- 1 issue, 1 PR open on GitHub.
- #132016: \[Bug\]: Deeply nested tool-call arguments crash tool-argument coercion with RecursionError (no depth budget)
- PR #132051: fix(tools): budget tool-argument walker depth and scan arguments iteratively (#132016)

A bug where deeply nested tool-call arguments trigger a RecursionError due to no depth budget in the tool-argument coercion walker, along with related fix attempts addressing the recursion depth and iterative scanning approach.

## TL;DR

- 3 member(s): 1 open issue(s), 0 closed issue(s), 1 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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 `0.67`: 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

- #132016: \[Bug\]: Deeply nested tool-call arguments crash tool-argument coercion with RecursionError (no depth budget)

## Prior & competing PRs

- **#132050: fix(tools): budget dispatch-side tool-arg walker depth (#132016)**. closed without merge
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `#132051`
- **#132051: fix(tools): budget tool-argument walker depth and scan arguments iteratively (#132016)**. open
  - maintainer direction: category `silent_close`; implication `active`
  - files: `agent/tool_dispatch_helpers.py`, `tests/agent/test_tool_arg_coercion.py`, `tests/agent/test_tool_call_guardrail_runtime.py`, `tools/arg_coercion.py`, `tools/schema_sanitizer.py`

## Fix status

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