# NousResearch/hermes-agent · Matrix send_voice rejecting unexpected is_voice kwarg

## Open now

- 0 issues, 1 PR open on GitHub.
- PR #104248: fix(matrix): accept \`is_voice kwarg\` in \`send_voice\` to match base contract

A bug where Matrix (and related backends) incorrectly rejected the is_voice keyword argument in send_voice(), breaking voice message delivery. Multiple fix attempts address accepting the kwarg to match the expected interface contract.

## TL;DR

- 4 member(s): 0 open issue(s), 1 closed issue(s), 1 open PR(s), 1 merged PR(s), 1 PR(s) closed without merging.
- A fix was merged to main in PR #117615. Verify it addresses your case.
- **Recommended:** read PR #117615 (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-117615`. 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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

- #102221: Matrix voice delivery broken in v0.21.0: send_voice() got unexpected kwarg 'is_voice'

## Prior & competing PRs

- **#117615: fix(gateway): Matrix/LINE/Mattermost/Weixin deliver audio MEDIA instead of rejecting the is_voice kwarg (#102221, #116776, salvage #116864)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `gateway/platforms/weixin.py`, `plugins/platforms/line/adapter.py`, `plugins/platforms/matrix/adapter.py`, `plugins/platforms/mattermost/adapter.py`, `tests/gateway/test_matrix_send_voice_dispatch.py`, `tests/gateway/test_send_voice_dispatch_signatures.py`, `website/docs/user-guide/messaging/matrix.md`
- **#102344: fix(gateway): accept is_voice kwarg in matrix/mattermost send_voice**. closed without merge
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `#100021`, `#100679`
- **#104248: fix(matrix): accept \`is_voice kwarg\` in \`send_voice\` to match base contract**. open
  - maintainer direction: category `duplicate_of`; implication `duplicate`; refs `#100679`, `#102221`, `#99712`
  - files: `plugins/platforms/matrix/adapter.py`, `tests/gateway/test_matrix_send_voice_is_voice.py`

## Fix status

- Merged to main in PR #117615 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-09-20`.
- Subsystem: `gateway`