# NousResearch/hermes-agent · Classify and report failing tool stream events

## Open now

- Nothing open on GitHub.

These changes address how failing tool executions are classified and surfaced in SSE streams, ensuring they are reported as \`tool.failed\` rather than completed. Related fixes cover CORS headers and flushing behavior on SSE endpoints.

## 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 #121745. Verify it addresses your case.
- **Recommended:** read PR #121745 (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-121745`. 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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

- #70503: Session chat SSE classifies failed tools as completed

## Prior & competing PRs

- **#121745: fix(api-server): CORS on every SSE stream, flush run-events head, report failed tools as tool.failed**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `contributors/emails/195337306+0xGr1mm@users.noreply.github.com`, `gateway/platforms/api_server.py`, `gateway/platforms/api_server_openai_routes.py`, `gateway/platforms/api_server_runs.py`, `tests/gateway/test_api_server.py`, `tests/gateway/test_api_server_runs.py`, `tests/gateway/test_session_api.py`, `website/docs/user-guide/features/api-server.md`
- **#70508: fix(api): classify failed tool stream events**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `346c14a9c5`, `#121745`, `#70503`

## Fix status

- Merged to main in PR #121745 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-09-25`.
- Subsystem: `gateway`