# NousResearch/hermes-agent · Langfuse trace ID uniqueness across turns and modes

## Open now

- Nothing open on GitHub.

Multiple bugs and fixes addressing Langfuse plugin behavior where distinct turns, sessions, or requests share the same trace ID, causing traces to collapse. Covers CLI, Gateway, and ACP modes.

## TL;DR

- 6 member(s): 0 open issue(s), 2 closed issue(s), 0 open PR(s), 0 merged PR(s), 4 PR(s) closed without merging.
- No fix has been merged to main; one or more PRs were attempted (see below).
- **Recommended:** review the prior/competing PR(s) below. A fix was attempted but not merged; your case may extend or revive that work.

## Maintainer resolution verdict

- Internal-tracker verdict over this cluster's issue members: `unresolved`. 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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 `0.42`: 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

- #29776: \[Bug\]: Langfuse traces collapse into single trace when task_id == session_id (ACP mode)
- #32005: bug: Langfuse plugin reuses same trace ID for all turns in a session

## Prior & competing PRs

- **#29784: fix(langfuse): differentiate ACP-mode trace keys by thread ID**. closed without merge
  - maintainer direction: category `silent_close`; implication `active`
- **#34316: fix(langfuse): generate distinct trace_id per turn in CLI and Gateway modes**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`
- **#72562: Fix Langfuse trace finalization for gateway turns**. closed without merge
  - maintainer direction: category `partial_fix`; implication `needs_llm`; refs `e82af71a9451`, `#29784`, `#34316`, `#72562`, `#29776`, `#32005`, `#374151`
- **#110582: fix(langfuse): scope trace IDs by turn**. closed without merge
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `c2a95963c442f3f23e4bc6fe0da898e1dd1fb63d`, `#74`

## Fix status

- No merged fix on record.
- Subsystem: `acp`