# NousResearch/hermes-agent · MCP interrupt cause reporting in tool loop

## Open now

- 1 issue, 2 PRs open on GitHub.
- #133539: MCP tool loop raises InterruptedError("User sent a new message") for system interrupts too
- PR #133547: fix(mcp): render the recorded interrupt cause, not a hardcoded user message
- PR #138202: fix(mcp): preserve MCP interrupt causes

All three members concern how MCP interrupts are reported, in particular an InterruptedError that says "User sent a new message" even for system interrupts. Two titles describe changes to preserve or render the recorded interrupt cause instead of a hardcoded message, and one describes the underlying issue.

## TL;DR

- 3 member(s): 1 open issue(s), 0 closed issue(s), 2 open PR(s), 0 merged PR(s), 0 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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 `0.67`: 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.

## Open related issues

- #133539: MCP tool loop raises InterruptedError("User sent a new message") for system interrupts too

## Prior & competing PRs

- **#133547: fix(mcp): render the recorded interrupt cause, not a hardcoded user message**. open
  - maintainer direction: category `uncategorized`; implication `needs_llm`; refs `#133539`, `#133271`, `#133271`
  - files: `tests/tools/test_mcp_tool_loop_interrupt_reason.py`, `tools/interrupt.py`, `tools/mcp_tool_handlers.py`, `tools/mcp_tool_loop.py`
- **#138202: fix(mcp): preserve MCP interrupt causes**. open
  - maintainer direction: category `uncategorized`; implication `needs_llm`
  - files: `tests/tools/test_mcp_tool.py`, `tools/mcp_tool_loop.py`

## Fix status

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