MQTT Explorer is a client application for MQTT, a messaging protocol commonly used by connected devices, that displays messages in an organized topic hierarchy. It is used to inspect and develop MQTT-based systems, including home-automation and other IoT setups, through desktop or browser modes. The catalogue entry provides an instruction for working with the application.
Borrowing it
Nothing to install: this file belongs to thomasnordquist/MQTT-Explorer. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/thomasnordquist/MQTT-Explorer/master/.github/copilot-instructions.mdgit clone --depth 1 https://github.com/thomasnordquist/MQTT-ExplorerWrote 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/instructions/thomasnordquist/mqtt-explorer/copilot-instructions)<a href="https://agentmods.dev/instructions/thomasnordquist/mqtt-explorer/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/thomasnordquist/mqtt-explorer/copilot-instructions/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/instructions/thomasnordquist/mqtt-explorer/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/thomasnordquist/mqtt-explorer/copilot-instructions.svg" alt="Reviewed on agentmods" width="80" 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 | $0.02582 | $0.02582 |
| Opus 5.5 | $0.01033 | $0.01033 |
| Sonnet 5.5 | $0.00516 | $0.00516 |
| Haiku 4.5 | $0.00258 | $0.00258 |
Grade B, and why
MQTT-Explorer copilot-instructions.md scanned grade B with 1 finding 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 2mo 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.
Asks for rootmediumPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
sudo apt-get install xvfb mosquitto tmux ffmpeg The source is not reproduced here
Licensed CC-BY-4.0
The repository is licensed CC-BY-4.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.
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.
- 2mo ago First seen · 262 lines · 2,582 tokens per session scan B 4353fc2df6f9
MQTT-Explorer copilot-instructions.md is an instructions file published in the GitHub repository thomasnordquist/MQTT-Explorer (4,092 stars, last pushed 6mo ago), licensed CC-BY-4.0. It adds 2,582 tokens to every session, about $0.0103 per session on Opus 5.5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-04.
MQTT-Explorer copilot-instructions.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| MQTT-Explorer copilot-instructions.mdthomasnordquist/MQTT-Explorer | Instructions file | 4.1k | 6mo ago | CC-BY-4.0 | B | 2,582 | GitHub Copilot |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | today | MIT | A | 7,461 | Codex, OpenCode |
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| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |