Borrowing it
Nothing to install: this file belongs to netboxlabs/netbox-mcp-server. 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/netboxlabs/netbox-mcp-server/main/.claude/skills/netbox-mcp-testing/SKILL.mdgit clone --depth 1 https://github.com/netboxlabs/netbox-mcp-serverWrote 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/skills/netboxlabs/netbox-mcp-server/netbox-mcp-testing)<a href="https://agentmods.dev/skills/netboxlabs/netbox-mcp-server/netbox-mcp-testing"><img src="https://agentmods.dev/badge/skills/netboxlabs/netbox-mcp-server/netbox-mcp-testing/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/skills/netboxlabs/netbox-mcp-server/netbox-mcp-testing"><img src="https://agentmods.dev/badge/skills/netboxlabs/netbox-mcp-server/netbox-mcp-testing.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00053 | $0.01363 |
| Opus 5.5 | $0.00021 | $0.00545 |
| Sonnet 5.5 | $0.00011 | $0.00273 |
| Haiku 4.5 | $0.00005 | $0.00136 |
Grade A, and why
netbox-mcp-testing 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 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.
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.
How it starts
The opening of the file, as written. The whole thing — 177 lines — stays where its author put it; the contents beside it link to each section on GitHub.
NetBox MCP Testing
When to Use
Use this skill when:
- After code/configuration changes or new tool additions
- Validating MCP server functionality with NetBox instance
Prerequisites Check
Before testing, verify:
- NetBox MCP server is connected (run
/mcpcommand) - Access to a live NetBox instance with test data exists
- NETBOX_URL and NETBOX_TOKEN environment variables are configured
If prerequisites aren't met, testing cannot proceed reliably.
Testing Approach
Execute comprehensive test scenarios autonomously, prioritizing high-value tests first.
Core Testing Mindset
- Provide clear, actionable feedback - Include specific metrics whenever possible (response times, data sizes, error counts)
- Investigate immediately - When encountering issues, don't just report symptoms, immediately investigate root causes and propose solutions
- Be metrics-driven - Quantify results wherever possible rather than relying on qualitative assessments
Core Testing Protocol
1. Pre-Test Analysis
Before beginning testing, assess the current state:
- Identify what has changed (if this is post-code-change validation)
- Determine testing scope (all tools vs. specific tools)
- Establish baseline expectations (what should work?)
- Note any known issues or limitations in the environment
2. Tool Discovery & Documentation
Discover available NetBox MCP tools by listing them. For each tool, document:
- Tool name and purpose
- Expected parameters (required and optional)
- Return data structure
- Error conditions
3. Systematic Testing with Performance Monitoring
Apply systematic testing to each discovered tool. Capture response times and metrics throughout.
For each tool, test:
-
Valid inputs - Execute with typical, valid parameters
- Verify returns expected data structure
- Confirm data is from NetBox instance
- Record response time for baseline
-
Invalid inputs - Execute with incorrect parameters
- Verify proper error messages
- Ensure errors are informative (not generic)
- Confirm server doesn't crash
- Note error handling performance
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 · 177 lines · 53 tokens per session scan A 5ce6c7a2ef12
netbox-mcp-testing is a skill published in the GitHub repository netboxlabs/netbox-mcp-server (252 stars, last pushed today), licensed Apache-2.0. It adds 53 tokens to every session and 1,363 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-08-30.
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