# NousResearch/hermes-agent · Adding emoji reaction support across chat platforms

## Open now

- 2 issues, 3 PRs open on GitHub.
- #37308: Matrix: forward message reactions into the agent session (inbound) + agent-initiated reactions (outbound)
- #49724: \[Feature\]: Mattermost: Support emoji reaction events from users
- PR #43745: feat(matrix): opt-in reaction answers on the bot's own messages
- PR #79275: feat(mattermost): add reaction lifecycle (eyes / check / x)
- PR #116827: feat(mattermost): forward inbound emoji reaction events to the agent

These items add support for emoji/message reaction events in Mattermost and Matrix integrations, covering both inbound reactions from users and outbound reactions initiated by agents.

## TL;DR

- 5 member(s): 2 open issue(s), 0 closed issue(s), 3 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evidence (`STRUCTURAL_PARTIAL`): some members are connected by structural evidence (shared changed files, or a closing/superseded reference); the rest are joined by an automated relevance judgement over their text.
- Members outside that structural core may belong to a different underlying problem.
- Pairwise link density `0.34`: 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

- #37308: Matrix: forward message reactions into the agent session (inbound) + agent-initiated reactions (outbound)
- #49724: \[Feature\]: Mattermost: Support emoji reaction events from users

## Prior & competing PRs

- **#43745: feat(matrix): opt-in reaction answers on the bot's own messages**. open
  - maintainer direction: category `merged_via`; implication `superseded`
  - files: `plugins/platforms/matrix/adapter.py`, `plugins/platforms/matrix/adapter_reactions.py`, `tests/gateway/test_matrix_reaction_answers.py`, `website/docs/reference/environment-variables.md`, `website/docs/user-guide/messaging/matrix.md`
- **#79275: feat(mattermost): add reaction lifecycle (eyes / check / x)**. open
  - maintainer direction: category `uncategorized`; implication `needs_llm`
  - files: `plugins/platforms/mattermost/adapter.py`, `plugins/platforms/mattermost/plugin.yaml`, `tests/gateway/test_mattermost_reactions.py`
- **#116827: feat(mattermost): forward inbound emoji reaction events to the agent**. open
  - maintainer direction: category `uncategorized`; implication `needs_llm`; refs `86587e9165`
  - files: `plugins/platforms/mattermost/adapter.py`, `plugins/platforms/mattermost/plugin.yaml`, `tests/gateway/test_mattermost_reaction_events.py`, `website/docs/user-guide/features/hooks.md`, `website/docs/user-guide/messaging/mattermost.md`

## Fix status

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