# NousResearch/hermes-agent · MCP stdio bridge null args crash fix

## Open now

- 0 issues, 2 PRs open on GitHub.
- PR #80495: fix(mcp): treat null args config as empty list in stdio bridge
- PR #80548: fix(mcp): tolerate null args in stdio bridge watchdog

A bug where null args in the MCP stdio bridge config causes a TypeError during iterable unpacking. The members cover the crash report and patches to tolerate or normalize null args as an empty list.

## TL;DR

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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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

## Closed / duplicate issues

- #80437: MCP stdio bridge crash: TypeError 'Value after * must be an iterable, not NoneType' when args is null in config

## Prior & competing PRs

- **#80495: fix(mcp): treat null args config as empty list in stdio bridge**. open
  - maintainer direction: category `silent_close`; implication `active`
  - files: `tests/tools/test_mcp_tool.py`, `tools/mcp_tool.py`
- **#80548: fix(mcp): tolerate null args in stdio bridge watchdog**. open
  - maintainer direction: category `duplicate_of`; implication `duplicate`; refs `#80495`
  - files: `tests/tools/test_mcp_stdio_watchdog.py`, `tools/mcp_tool.py`

## Fix status

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