# NousResearch/hermes-agent · MCP server duplicate spawn and eager start issue

## Open now

- Nothing open on GitHub.

These items concern a regression where MCP servers start all instances at boot, and related fixes to prevent duplicate spawns and stale connecting entries. The fixes add guards to skip servers already in a connecting state.

## TL;DR

- 4 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 1 merged PR(s), 2 PR(s) closed without merging.
- A fix was merged to main in PR #75915. Verify it addresses your case.
- **Recommended:** read PR #75915 (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-75915`. 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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 `0.50`: 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

- #58862: \[Regression\] MCP servers eagerly start all instances at boot (config_version 33)

## Prior & competing PRs

- **#75915: fix(mcp): guard against duplicate spawns and stale connecting entries (#58862)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `tests/tools/test_mcp_tool.py`, `tools/mcp_tool.py`
- **#58867: fix(mcp): skip servers already in _server_connecting to prevent duplicate spawns**. closed without merge
  - maintainer direction: category `merged_via`; implication `superseded`; refs `#58879`, `#75915`
- **#58879: fix(mcp): guard against duplicate spawns and stale connecting entries (#58862)**. closed without merge
  - maintainer direction: category `merged_via`; implication `superseded`; refs `#75915`, `#58867`

## Fix status

- Merged to main in PR #75915 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-08-01`.
- Subsystem: `mcp`