# NousResearch/hermes-agent · MCP stdio case-insensitive env key lookup correction

## Open now

- 1 issue, 1 PR open on GitHub.
- #127091: \[Audit regression\] #56536: MCP stdio PATH lookup ignores mixed-case config env keys
- PR #127216: fix(mcp): resolve mixed-case Windows PATH keys

These items address a bug where MCP stdio PATH and environment key lookups were failing to handle mixed-case or case-insensitive keys, particularly on Windows. The work involves corrections and a related audit regression report (\`#56536\`) tracking this specific behavior.

## 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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

- #127091: \[Audit regression\] #56536: MCP stdio PATH lookup ignores mixed-case config env keys

## Prior & competing PRs

- **#127216: fix(mcp): resolve mixed-case Windows PATH keys**. open
  - maintainer direction: category `uncategorized`; implication `needs_llm`; refs `7728574ad4b`, `f8f9e213708`, `#127592`
  - files: `tests/tools/test_mcp_tool_config_windows.py`, `tests/tools/test_mcp_tool_issue_948.py`, `tools/mcp_tool_common.py`, `tools/mcp_tool_config.py`
- **#127592: fix(mcp): honor case-insensitive stdio env keys**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `979ec159eb5`, `7728574ad4b`, `#127216`

## Fix status

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