# NousResearch/hermes-agent · Tool progress SSE event suppression and configuration

## Open now

- Nothing open on GitHub.

These members concern a custom SSE event type for tool progress output and the addition of configuration options to suppress or control whether those events are sent to clients. The theme is consistent across a feature request, multiple implementation PRs, and a related fix.

## TL;DR

- 4 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 1 merged PR(s), 2 PR(s) closed without merging.
- A fix was merged to main in PR #121743. Verify it addresses your case.
- **Recommended:** read PR #121743 (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-121743`. 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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 `0.50`: 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

- #12020: \[Feature\]: How to prevent the output of the event: hermes.tool.progress and tool data messages

## Prior & competing PRs

- **#121743: fix(api_server): run SSE fan-out/replay, final answer without deltas, tool-progress opt-out**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `contributors/emails/[redacted:email]`, `gateway/platforms/api_server.py`, `gateway/platforms/api_server_openai_routes.py`, `gateway/platforms/api_server_runs.py`, `tests/gateway/test_api_server_runs.py`, `tests/gateway/test_api_server_sse_keepalive.py`, `tests/gateway/test_chat_completions_final_fallback.py`, `tests/gateway/test_chat_completions_tool_progress_optout.py`, `website/docs/user-guide/features/api-server.md`, `website/i18n/zh-Hans/docusaurus-plugin-content-docs/current/user-guide/features/api-server.md`
- **#20109: feat(api-server): add config-driven tool_progress_events and reasoning_content**. closed without merge
  - maintainer direction: category `silent_close`; implication `active`
- **#42640: feat(api_server): add tool_progress_events config to suppress custom SSE events**. closed without merge
  - maintainer direction: category `uncategorized`; implication `needs_llm`; refs `61286a889e`, `#121743`, `#12020`

## Fix status

- Merged to main in PR #121743 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-09-25`.
- Subsystem: `gateway`