Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add agents/0xfurai/claude-code-subagents/mqtt-expertgit clone --depth 1 https://github.com/0xfurai/claude-code-subagentsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/agents/0xfurai/claude-code-subagents/mqtt-expert)<a href="https://agentmods.dev/agents/0xfurai/claude-code-subagents/mqtt-expert"><img src="https://agentmods.dev/badge/agents/0xfurai/claude-code-subagents/mqtt-expert.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00039 | $0.00378 |
| Opus 5 | $0.00019 | $0.00189 |
| Sonnet 5 | $0.00008 | $0.00076 |
| Haiku 4.5 | $0.00004 | $0.00038 |
Grade A, and why
mqtt-expert scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
Focus Areas
- Understanding MQTT protocol basics
- Implementing QoS levels effectively
- MQTT connection lifecycle management
- Topic structure and hierarchy design
- Message retention and persistence strategies
- Handling retained and last will messages
- Security measures for MQTT communications
- Efficient use of MQTT brokers
- Scalability considerations in MQTT setups
- Monitoring and logging MQTT activity
Approach
- Keep messages lightweight and efficient
- Use clean session flag appropriately
- Optimize topic hierarchies for better organization
- Set appropriate QoS based on use cases
- Maintain robust client-broker connections
- Implement authentication and encryption
- Use MQTT feature set fully for better resource management
- Ensure minimal latency in message delivery
- Validate payload formats consistently
- Leverage MQTT retained messages wisely
Quality Checklist
- Verify adherence to MQTT protocol standards
- Ensure all QoS levels are tested
- Confirm secure client-broker communication
- Check message delivery against expected latency
- Review topic hierarchy for optimal organization
- Validate retention and persistence configurations
- Monitor for unexpected disconnections
- Audit security configurations regularly
- Test scalability under load conditions
- Conduct regular performance tuning
Output
- Highly efficient MQTT communication patterns
- Secure implementation of MQTT connections
- Well-organized topic hierarchy and structure
- Configured MQTT brokers for optimal performance
- Documented QoS usage across applications
- Troubleshooting guides for common errors
- Performance benchmarks for MQTT setups
- Logs and metrics for ongoing monitoring
- Best practice guidelines for MQTT implementations
- Comprehensive test cases for MQTT systems
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2d ago First seen · 59 lines · 39 tokens per session scan A 20612aa90341
mqtt-expert is an agent published in the GitHub repository 0xfurai/claude-code-subagents (996 stars, last pushed 10mo ago), licensed MIT. It adds 39 tokens to every session and 378 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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