NousResearch/hermes-agent

SSE event order errors trigger non-stream fallback

Cluster 72833 · agent. Data as of 2026-10-25 11:21 UTC

Nothing open on GitHub. Fix merged in #121554 on 24 Sep 2026. Check it covers your case.

open issues

open PRs

items grouped

Known?: Yes. 4 related items grouped here, 1 issue already closed.
Fix event: A fix was merged to main in PR #121554. Check it covers your case. No release data is tracked.
Tracker: The maintainers' tracker marks this resolved, deciding PR #121554. That is separate from the fix event.
Still open: Nothing open on GitHub.

Next step: read #121554, then check it covers your case.

Read #121554 Pick up a Lab task

These items address a bug where out-of-order SSE events from custom and Anthropic providers should trigger a fallback to non-streaming mode. The work spans bug identification and fixes across multiple providers.

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.

#121554 fix(anthropic): normalize usage:null streams, non-stream fallback on out-of-order SSE, Messages-shaped partial stubs

merged to main

files: agent/anthropic_adapter.py, agent/chat_completion_helpers.py, tests/agent/test_anthropic_stream_fallbacks.py, tests/agent/test_streaming.py

2 PRs closed without merging

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

#72862 fix(streaming): fall back to non-stream on custom provider SSE order error (#72833) · merged via another change → 44f6d3b, #121554, #72833
#73125 fix(anthropic): trigger non-stream fallback on SSE event order errors (#72833) · duplicate → #72862, #72833

Closed issues · 1

Closed#72833bug(streaming): custom provider SSE event order error should trigger non-stream fallback

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(structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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 0.50: 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: #121554
Closed issues: 1
Attempts: 2 PRs closed without merging
Fix link checked: 24 Sep 2026

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