# Channel Mattermost

> Mattermost channel for Claude Code — two-way messaging bridge with built-in access control for self-hosted Mattermost instances. Manage pairing, allowlists, and policy via /mattermost:access

## Facts
- Page: https://tashan.sh/capability/plugin-todd-chamberlain-claude-channel-mattermost-channel-mattermost
- tashan id: plugin:todd-chamberlain/claude-channel-mattermost/channel-mattermost
- Source: https://github.com/todd-chamberlain/claude-channel-mattermost
- Type: plugin
- Category: productivity
- tashan score: 23.0 / 100
- Adoption: 11.0
- Upkeep: 43.0
- Freshness: 53.0
- Evidence coverage: 84% of the inputs this score can use
- Health: active
- Instruction depth: not yet graded
- GitHub stars: 1
- License: Apache-2.0
- Official: no

## Install

```sh
/plugin marketplace add anthropics/claude-plugins-community
/plugin install channel-mattermost@claude-community
```

## Security audit
Not scanned. We audit npm-published capabilities; this one has no npm package we can resolve, or has not reached the queue. This is not a clean bill of health.

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Measured 2026-09-13 by tashan (https://tashan.sh) from public evidence. Scorer s5.