# NousResearch/hermes-agent · ACP session stuck after prompt cancel or stop

## Open now

- 1 issue, 1 PR open on GitHub.
- #79196: \[Bug\]: ACP: pressing "stop" in an ACP client can wedge the session permanently — \`is_running\` never resets, all later prompts queue forever
- PR #79215: fix(acp): unwedge session when prompt task cancelled or send fails

These issues and fixes address a bug where cancelling or stopping an in-flight ACP prompt leaves the session permanently wedged, causing all subsequent prompts to queue indefinitely instead of executing. The fix resets session state to idle when a prompt is cancelled or fails mid-flight.

## TL;DR

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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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

- #79196: \[Bug\]: ACP: pressing "stop" in an ACP client can wedge the session permanently — \`is_running\` never resets, all later prompts queue forever

## Prior & competing PRs

- **#64471: fix(acp): cancelled turn with final_response=None permanently bricks the session (every prompt queued forever)**. closed without merge
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `9a01dfc63399`, `#114912`, `#114167`, `#114168`
- **#79215: fix(acp): unwedge session when prompt task cancelled or send fails**. open
  - maintainer direction: category `uncategorized`; implication `needs_llm`
  - files: `acp_adapter/server.py`, `tests/acp_adapter/test_acp_commands.py`
- **#79216: fix(acp): reset session to idle when an in-flight prompt is cancelled (#79196)**. closed without merge
  - maintainer direction: category `duplicate_of`; implication `duplicate`; refs `#79215`, `#79196`

## Fix status

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