NousResearch/hermes-agent

MCP stdio server Node.js PATH ordering issues

Cluster 124264. Data as of

Nothing open on GitHub. Fix merged in #125644 on 28 Sep 2026. Check it covers your case.

The short answer

0open issues
0open PRs
3items grouped
Known?
Yes. 3 related items grouped here, 1 issue already closed.
Fix event
A fix was merged to main in PR #125644. Check it covers your case. No release data is tracked.
Tracker
The maintainers' tracker marks this resolved, deciding PR #125644. That is separate from the fix event.
Still open
Nothing open on GitHub.

These items concern how managed Node.js installations interact with MCP stdio servers, specifically around PATH precedence and native addon compatibility when a different Node version built the addon.

Open issues0

No open issues.

Open PRs0

No open pull requests.

Fixes on record

Merged to main. A stamp counts the issues a fix is linked to.

  • #125644 MCP servers with a native addon built by another Node now say so and name the rebuild under Hermes's Node (#124264)

    merged to main

    files: hermes_cli/mcp_config.py, tests/e2e/core/upgrade/hosts/test_path_shapes.py, tests/tools/test_mcp_node_abi.py, tools/mcp_tool_config.py, tools/mcp_tool_errors.py, tools/mcp_tool_node_abi.py, tools/mcp_tool_transport.py

1 PR closed without merging

From the close comments: other 1

  • #124304 fix(mcp): keep the user's Node ahead of PM's for stdio MCP servers · other → #124264, #125644
Closed issues · 1
  • Closed#124264hermes update installs a managed Node and prepends it to MCP child PATH, breaking npm MCP servers with native addons
How this cluster was grouped
  • Link evidence (structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.
  • Pairwise link density 0.67: the share of item 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.

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At a glance

Merged PRs
#125644
Closed issues
1
Attempts
1 PR closed without merging
Fix link checked
28 Sep 2026

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