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NousResearch/hermes-agent

MCP killpg self-termination bug fixes

Cluster 47134 · mcp. Data as of

Nothing open on GitHub. Fix merged in #51507. Check it covers your case.

The short answer

0open issues
0open PRs
5items grouped
Known?
Yes. 5 related items grouped here, 1 issue already closed.
Fix event
A fix was merged to main in PR #51507. Check it covers your case. No release data is tracked.
Tracker
The maintainers' tracker marks this resolved, deciding PR #51507. That is separate from the fix event.
Still open
Nothing open on GitHub.

Multiple fixes addressing a bug where killpg sends SIGTERM to the gateway's own process group during MCP shutdown or reload, causing the gateway to kill itself. Changes add guards to skip killpg when the child process shares the gateway's process group.

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.

  • #51507 fix(mcp): skip killpg when child shares gateway's process group (#47134)

    merged to main

    files: tests/tools/test_mcp_stability.py, tools/mcp_tool.py

3 PRs closed without merging

From the close comments: done elsewhere 1 · duplicate 1 · merged via another change 1

  • #47142 fix(mcp): guard killpg against sending SIGTERM to gateway own process group · duplicate → #47152, #47134, #51507
  • #47152 fix(mcp): guard killpg against gateway own process group SIGTERM · merged via another change → #47134, #47182, #51507
  • #47182 fix(mcp): skip killpg when pgid matches gateway's own process group (#47134) · done elsewhere → 23c4737, #47134
Closed issues · 1
  • Closed#47134fix(mcp): /reload-mcp crashes gateway via killpg sending SIGTERM to gateway's own process group
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(structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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 0.40: 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

Subsystem
mcp
Merged PRs
#51507
Closed issues
1
Attempts
3 PRs closed without merging
Fix link checked
23 Jun 2026

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