Tutorial

OpenClaw Plugin Channels: Mattermost and Lark

February 21, 20263 min readReviewed March 8, 2026

OpenClaw supports Mattermost and Lark/Feishu through channel plugins. This is useful when teams need enterprise chat coverage beyond default channels while keeping the same routing and policy model[1][2].

Mattermost Basics

Mattermost support is plugin-based and supports DMs, groups, and channels. Default behavior is conservative, with pairing and mention-aware channel responses[1].

Lark (Feishu) Basics

The Feishu channel docs describe onboarding through wizard or channel-add CLI flow, then gateway restart and log validation[2][3].

Plugin Operations

openclaw plugins list
openclaw plugins install <plugin>
openclaw channels add
openclaw channels status --probe
openclaw logs --follow

Policy Configuration Pattern

{
  "channels": {
    "mattermost": { "dmPolicy": "pairing", "groupPolicy": "allowlist", "requireMention": true },
    "feishu": { "dmPolicy": "pairing", "groupPolicy": "allowlist", "requireMention": true }
  }
}

Production Advice

Roll out one plugin channel at a time.
Confirm capabilities before enabling actions.
Keep logs attached to deployment automation for quick rollback decisions.

Vendor Documentation Still Matters

For token scopes, bot permissions, and tenant controls, validate against vendor docs too[4][5]. OpenClaw channel docs define integration behavior, while vendor docs define platform security boundaries.

References

OpenClaw Docs: Mattermost Channel - Accessed February 21, 2026
OpenClaw Docs: Feishu (Lark) Channel - Accessed February 21, 2026
OpenClaw Docs: CLI Plugins - Accessed February 21, 2026
Mattermost Docs: Incoming Webhooks - Accessed February 21, 2026
Lark/Feishu Developer Docs - Accessed February 21, 2026