# NousResearch/hermes-agent · MCP stdio subprocess reliability and unrelated bug

## Open now

- 1 issue, 0 PRs open on GitHub.
- #96497: \[Bug\]: Azure devs

Two related fixes address MCP stdio tool calls failing when a subprocess exits, covering respawn/retry logic and Linux child-PID tracking. The third item ('Azure devs') is unrelated and too vague to characterize.

## TL;DR

- 3 member(s): 1 open issue(s), 0 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 #100987. Verify it addresses your case.
- **Recommended:** read PR #100987 (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: `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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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

- #96497: \[Bug\]: Azure devs

## Prior & competing PRs

- **#100987: fix(mcp): stdio tool calls survive a dead subprocess — respawn+retry, and Linux child-PID tracking actually works (salvage #100814)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `contributors/emails/[redacted:email]`, `tests/tools/test_mcp_stability.py`, `tests/tools/test_mcp_stdio_fastfail_reconnect.py`, `tools/mcp_tool.py`
- **#96510: fix(mcp): keep stdio tools working after subprocess exits**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `b8286244797`, `696d854b97a`, `#100987`, `#100814`

## Fix status

- Merged to main in PR #100987 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-09-02`.
- Subsystem: `mcp`