Summary

Bug Report: Mattermost channel fails to connect after updating to v2026.2.25

Issue Description

After updating to v2026.2.25, the Mattermost channel fails to connect. Logs show:

error gateway/channels/mattermost [default] channel exited: fetch failed
error gateway/channels/mattermost [instance2] channel exited: fetch failed

Impact

• Both Mattermost accounts (default and instance2) fail to connect
• Unable to receive or send Mattermost messages

Root Cause

The compiled dist/plugin-sdk/index.js is missing the isDangerousNameMatchingEnabled function export.

The export exists in src/plugin-sdk/index.ts:94:

export { isDangerousNameMatchingEnabled } from "../config/dangerous-name-matching.js";

However, this function was not properly exported in the compiled file, causing the Mattermost plugin to throw:

TypeError: (0 , _pluginSdk.isDangerousNameMatchingEnabled) is not a function

Reproduction Steps

1. Clone the repository fresh and checkout v2026.2.25 tag
2. Run node openclaw.mjs gateway directly
3. Check logs - Mattermost channel fails to start

Temporary Solution

Rebuild the project:

pnpm build

After building, restart the gateway.

Test Environment

• OS: Windows 10.0.22621 (x64)
• Node.js: 24.13.0
• OpenClaw: v2026.2.25 (tag: 4b5d4a4)

Related Files

• src/plugin-sdk/index.ts - Function export location
• extensions/mattermost/src/mattermost/monitor.ts:217 - Function call location
• src/config/dangerous-name-matching.ts - Function definition location

Suggested Fix

This is a build/compilation issue. Recommended:

1. Check tsdown configuration to ensure all exported functions are properly compiled
2. Add tests in CI/CD to verify critical plugin-sdk functions are correctly exported
3. Or add post-build automation to verify necessary functions are exported

Steps to reproduce

1. Clone the repository fresh and checkout v2026.2.25 tag
2. Run node openclaw.mjs gateway directly
3. Check logs - Mattermost channel fails to start

Expected behavior

Mattermost channel should connect successfully and be able to:

• Connect to the Mattermost server using the configured bot token
• Receive and process messages from Mattermost
• Send replies back to Mattermost channels

Actual behavior

• Both Mattermost accounts (default and instance2) fail to connect
• Channel exits immediately with "fetch failed" error
• Auto-restart attempts continue but all fail
• Unable to receive or send Mattermost messages

OpenClaw version

v2026.2.25 (tag: 4b5d4a4)

Operating system

Windows11 ver 10.0.22621 (x64)

Install method

No response

Logs, screenshots, and evidence

Impact and severity

No response

Additional information

No response