# NousResearch/hermes-agent · Windows MCP stdio probe holds stderr log open

## Open now

- Nothing open on GitHub.

A bug where stdio MCP probing leaves the stderr log file handle open on Windows, causing profile deletion to fail. The members cover the issue report and related fix attempts.

## TL;DR

- 3 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 1 merged PR(s), 1 PR(s) closed without merging.
- A fix was merged to main in PR #111400. Verify it addresses your case.
- **Recommended:** read PR #111400 (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-111400`. 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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

- #110953: Windows: profile deletion fails after stdio MCP probe leaves stderr log open

## Prior & competing PRs

- **#111400: fix(mcp): Windows profile deletion no longer fails on the cached mcp-stderr.log after a stdio probe (#110953, salvage #110954)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `contributors/emails/[redacted:email]`, `hermes_cli/profiles.py`, `tests/hermes_cli/test_profile_delete_mcp_log.py`, `tests/tools/test_mcp_stderr_lifecycle.py`, `tools/mcp_tool_config.py`, `tools/mcp_tool_lifecycle.py`
- **#110954: fix(mcp): release profile stderr handles before deletion**. closed without merge
  - maintainer direction: category `silent_close`; implication `active`

## Fix status

- Merged to main in PR #111400 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-09-15`.