Cairn
NousResearch/hermes-agent

Browser session leaks under multiplexing, cleanup fixes

Cluster 86402 · agent. Data as of

Nothing open on GitHub. Fix merged in #101255 on 2 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 #101255. Check it covers your case. No release data is tracked.
Tracker
The maintainers' tracker marks this resolved, deciding PR #101255. That is separate from the fix event.
Still open
Nothing open on GitHub.

These items concern a bug where multiplexed browser sessions are not properly reclaimed or closed during inactivity, causing Chromium process leaks. The work involves fixes to idle session cleanup and broader multiplexing infrastructure including per-profile hooks and scoped threads.

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.

  • #101255 fix(gateway): per-profile hooks, MCP discovery, webhook skills, and scoped browser/Hindsight threads under multiplex (#92672 #95518 #86402 #92608 #67277, salvage #92682 #95542 #86472)

    merged to main

    files: agent/outbound_webhooks.py, agent/shell_hooks.py, agent/skill_commands.py, agent/skill_utils.py, contributors/emails/[redacted:email], gateway/platforms/webhook.py, gateway/run.py, hermes_cli/plugins.py, plugins/memory/hindsight/__init__.py, tests/agent/test_outbound_webhooks.py, tests/agent/test_skill_commands.py, tests/gateway/test_multiplex_adapter_registry.py, tests/gateway/test_multiplex_mcp_discovery.py, tests/gateway/test_webhook_adapter.py, tests/hermes_cli/test_plugins.py, tests/plugins/memory/test_hindsight_provider.py, tests/tools/test_browser_cleanup.py, tests/tools/test_mcp_lazy_start.py, tools/browser_tool.py, tools/mcp_tool.py (+2 more)

1 PR closed without merging

From the close comments: merged via another change 1

  • #86472 fix(browser): reclaim idle multiplexed sessions before Chromium leaks · merged via another change → bd81bf0, #101255
Closed issues · 1
  • Closed#86402[Bug]: browser inactivity cleanup thread never closes a session under multiplexing (UnscopedSecretError) — leaks one Chromium per stuck session
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(structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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

Subsystem
agent
Merged PRs
#101255
Closed issues
1
Attempts
1 PR closed without merging
Fix link checked
2 Sep 2026

For your agent

The same facts, typed.

cluster/86402.json
cluster/86402.md