# NousResearch/hermes-agent · Opaque streaming 5xx error unmasking and retry

## Open now

- Nothing open on GitHub.

These items address a bug where streaming 5xx errors hide actionable provider validation messages, with fixes involving a non-streaming retry or probe to surface the underlying error. Related handling for SSE parse error retry jitter is also included.

## TL;DR

- 3 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 1 merged PR(s), 1 PR(s) closed without merging.
- A fix was merged to main in PR #121541. Verify it addresses your case.
- **Recommended:** read PR #121541 (and any competing PRs below) before filing. Confirm the merged change covers your symptom.

## Maintainer resolution verdict

- Internal-tracker verdict over this cluster's issue members: `resolved` · deciding PR(s): `pr-121541`. This is distinct from the fix status above. Weigh it yourself.

## How this cluster was grouped

- Link evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.
- Pairwise link density `0.67`: the share of member 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.

## Closed / duplicate issues

- #107948: \[Bug\]: Opaque streaming 5xx masks the provider's actionable validation error — no non-streaming fallback

## Prior & competing PRs

- **#121541: fix(agent): unmask opaque streaming 5xx with one non-streaming probe; retry jiter SSE parse errors**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `agent/agent_init.py`, `agent/api_error_summary.py`, `agent/chat_completion_helpers.py`, `agent/turn_api_error.py`, `run_agent.py`, `tests/agent/test_stream_unmask_5xx.py`, `tests/agent/test_turn_api_error_stream_parse.py`
- **#107950: fix(agent): unmask opaque streaming 5xx with one non-streaming retry**. closed without merge
  - maintainer direction: category `merged_via`; implication `superseded`; refs `6927ccf2e0`, `#121541`, `#107948`

## Fix status

- Merged to main in PR #121541 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-09-24`.