# NousResearch/hermes-agent · Anthropic stream missing message_stop retry fix

## Open now

- Nothing open on GitHub.

These items address a bug where Anthropic (and Bedrock) streams closing before a message_stop event were not retried, causing truncated responses to be delivered and persisted. The fix treats such incomplete streams as dropped and triggers a retry.

## 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 #121535. Verify it addresses your case.
- **Recommended:** read PR #121535 (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-121535`. 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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

- #121320: \[Bug\]: Anthropic Messages stream closed before message_stop is accepted as a complete answer (truncated text delivered + persisted, no retry)

## Prior & competing PRs

- **#121535: fix(anthropic,bedrock): treat a stream that ends without message_stop/messageStop as dropped and retry**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `agent/anthropic_adapter.py`, `agent/bedrock_adapter.py`, `agent/chat_completion_helpers.py`, `tests/agent/test_anthropic_message_stop.py`, `tests/agent/test_anthropic_mid_tool_call_drop.py`, `tests/agent/test_aux_stream_host_deadline_sibling_wires.py`, `tests/agent/test_auxiliary_client.py`, `tests/agent/test_bedrock_stream_completion.py`, `tests/agent/test_run_agent.py`, `tests/agent/test_stream_stale_circuit_breaker.py`, `tests/agent/test_streaming.py`, `tests/agent/transports/test_transport.py`, `tests/e2e/core/providers/test_anthropic_errors.py`, `tests/e2e/core/providers/test_native_bedrock_converse_faults.py`
- **#121334: fix(anthropic): retry streams missing message_stop**. closed without merge
  - maintainer direction: category `partial_fix`; implication `needs_llm`; refs `#121535`

## Fix status

- Merged to main in PR #121535 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-09-24`.