NousResearch/hermes-agent

SSE keepalive frames wrongly treated as fatal errors

Cluster 111887. Data as of 2026-10-26 12:29 UTC

Nothing open on GitHub. Fix merged in #112183 on 16 Sep 2026. Check it covers your case.

open issues

open PRs

items grouped

Known?: Yes. 3 related items grouped here, 1 issue already closed.
Fix event: A fix was merged to main in PR #112183. Check it covers your case. No release data is tracked.
Tracker: The maintainers' tracker marks this resolved, deciding PR #112183. That is separate from the fix event.
Still open: Nothing open on GitHub.

Next step: read #112183, then check it covers your case.

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A bug where contentless SSE keepalive frames (bare data: or event: ping) trigger a JSONDecodeError that is mishandled as a fatal provider stream error, killing the turn. The fix makes the agent retry without streaming instead of terminating.

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.

#112183 fix(agent): contentless SSE keepalive frames retry without streaming instead of killing the turn (#111887, salvage #111888)

merged to main

files: agent/chat_completion_helpers.py, agent/error_classifier.py, tests/agent/test_run_agent.py, tests/agent/test_streaming.py, website/docs/user-guide/configuration.md

1 PR closed without merging

From the close comments: merged via another change 1

#111888 fix(agent): contentless SSE keepalive frames retry without streaming · merged via another change → eba9b55, #112183

Closed issues · 1

Closed#111887[Bug]: Contentless SSE frame (bare `data:` / `event: ping`) kills the turn — empty `JSONDecodeError.doc` reported as a fatal provider stream error

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(structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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: #112183
Closed issues: 1
Attempts: 1 PR closed without merging
Fix link checked: 16 Sep 2026

For your agent

The same facts, typed.

cluster/111887.json
cluster/111887.md