Requirements
- Target platform
- OpenClaw
- Install method
- Manual import
- Extraction
- Extract archive
- Prerequisites
- OpenClaw
- Primary doc
- SKILL.md
Tencent SkillHub ยท Communication & Collaboration
MQTT
Implement MQTT messaging avoiding security, QoS, and connection management pitfalls.
skill openclawclawhub Free
Implement MQTT messaging avoiding security, QoS, and connection management pitfalls.
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Install for OpenClaw
Quick setup
- Download the package from Yavira.
- Extract the archive and review SKILL.md first.
- Import or place the package into your OpenClaw setup.
Package facts
- Download mode
- Yavira redirect
- Package format
- ZIP package
- Source platform
- Tencent SkillHub
- What's included
- SKILL.md
Validation
- Use the Yavira download entry.
- Review SKILL.md after the package is downloaded.
- Confirm the extracted package contains the expected setup assets.
Install with your agent
Agent handoff
Hand the extracted package to your coding agent with a concrete install brief instead of figuring it out manually.
- Download the package from Yavira.
- Extract it into a folder your agent can access.
- Paste one of the prompts below and point your agent at the extracted folder.
New install
I downloaded a skill package from Yavira. Read SKILL.md from the extracted folder and install it by following the included instructions. Tell me what you changed and call out any manual steps you could not complete.
Upgrade existing
I downloaded an updated skill package from Yavira. Read SKILL.md from the extracted folder, compare it with my current installation, and upgrade it while preserving any custom configuration unless the package docs explicitly say otherwise. Summarize what changed and any follow-up checks I should run.
Trust & source
Release facts
- Source
- Tencent SkillHub
- Verification
- Indexed source record
- Version
- 1.0.0
Provenance
- Publisher
- ivangdavila
- Source page
- View original listing
- Canonical URL
- Open canonical page
Documentation
Security Traps
Default Mosquitto allows anonymous connections โ bots scan constantly, always configure auth TLS mandatory for external access โ credentials travel plaintext otherwise Duplicate client IDs cause connection fights โ both clients repeatedly disconnect each other ACLs should restrict topic access โ one compromised device shouldn't read all topics
QoS Misunderstandings
Effective QoS is minimum of publisher and subscriber โ broker downgrades if subscriber requests lower QoS 1 may duplicate messages โ handlers must be idempotent QoS 2 has significant overhead โ only use for commands where duplicates cause problems QoS applies per-message โ can mix within same topic
Topic Design Pitfalls
Starting with / creates empty first level โ home/temp not /home/temp Wildcards only work in subscriptions โ can't publish to home/+/temperature # matches everything including nested โ home/# gets home/a/b/c/d Some brokers limit topic depth โ check before designing deep hierarchies
Connection Management
Clean session false preserves subscriptions โ messages queue while disconnected, can surprise Keep-alive too long = delayed dead client detection โ 60s is reasonable default Reconnection logic is client responsibility โ most libraries don't auto-reconnect by default Will message only fires on unexpected disconnect โ clean disconnect doesn't trigger it
Retained Message Traps
Retained messages persist until explicitly cleared โ old data confuses new subscribers Clear retained with empty message + retain flag โ not obvious from docs Birth/will pattern: publish "online" retained on connect, will publishes "offline"
Mosquitto Specifics
persistence true survives restarts โ without it, retained messages and subscriptions lost max_queued_messages prevents memory exhaustion โ one slow subscriber shouldn't crash broker listener 1883 0.0.0.0 binds all interfaces โ use 127.0.0.1 for local-only
Debugging
Subscribe to # sees all traffic โ never in production, leaks everything $SYS/# exposes broker metrics โ client count, bytes, subscriptions Retained messages persist after fixing issues โ explicitly clear them mosquitto_sub -v shows topic with message โ essential for debugging
Category context
Messaging, meetings, inboxes, CRM, and teammate communication surfaces.
Source: Tencent SkillHub
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Package contents
Included in package
1 Docs
- SKILL.md