# NousResearch/hermes-agent · ACP tool completion events silently dropped bug

## Open now

- 1 issue, 2 PRs open on GitHub.
- #33023: \[Bug\]: ACP tool completion events silently lost — _send_update fire-and-forget with silent exception swallowing
- PR #33032: fix(acp): recover silently lost tool completion events with retry mechanism
- PR #67062: fix(acp): recover dropped tool-completion events instead of silently losing them (#33023)

These members concern a bug where ACP tool completion events are silently lost due to fire-and-forget sending with swallowed exceptions. A retry or recovery mechanism is being discussed or implemented to address this.

## TL;DR

- 4 member(s): 1 open issue(s), 0 closed issue(s), 2 open PR(s), 0 merged PR(s), 1 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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 `0.50`: 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.

## Open related issues

- #33023: \[Bug\]: ACP tool completion events silently lost — _send_update fire-and-forget with silent exception swallowing

## Prior & competing PRs

- **#33032: fix(acp): recover silently lost tool completion events with retry mechanism**. open
  - maintainer direction: category `uncategorized`; implication `needs_llm`
  - files: `acp_adapter/events.py`, `tests/acp/test_events.py`
- **#67062: fix(acp): recover dropped tool-completion events instead of silently losing them (#33023)**. open
  - maintainer direction: category `partial_fix`; implication `needs_llm`; refs `9114f2ba867b`, `#33023`, `#33032`, `#57510`, `#67062`, `#374151`
  - files: `acp_adapter/events.py`, `acp_adapter/server.py`, `tests/acp/test_events.py`, `tests/acp/test_events_67062_accepted_failure.py`, `tests/acp/test_mcp_e2e.py`
- **#124083: fix(acp): confirm delivery of tool-completion updates and requeue lost ones (#33023)**. closed without merge
  - maintainer direction: category `stale_abandoned`; implication `active`; refs `e4b57bbec47`

## Fix status

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