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 skills add sirkirby/unifi-mcp --skill firewall-auditorgit clone --depth 1 https://github.com/sirkirby/unifi-mcpWrote 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/sirkirby/unifi-mcp/firewall-auditor)<a href="https://agentmods.dev/skills/sirkirby/unifi-mcp/firewall-auditor"><img src="https://agentmods.dev/badge/skills/sirkirby/unifi-mcp/firewall-auditor/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/sirkirby/unifi-mcp/firewall-auditor"><img src="https://agentmods.dev/badge/skills/sirkirby/unifi-mcp/firewall-auditor.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 | $0.00046 | $0.03149 |
| Opus 5.5 | $0.00018 | $0.01260 |
| Sonnet 5.5 | $0.00009 | $0.00630 |
| Haiku 4.5 | $0.00005 | $0.00315 |
Grade A, and why
firewall-auditor 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 9d 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- firewall-auditor — 88% identical, 71 lines differ
How it starts
The opening of the file, as written. The whole thing — 248 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Firewall Policy Auditor
Dependencies
Requires: network Optional: none
Verify required tools through MCP discovery before collecting data; discovery alone
does not prove controller connectivity or authorization. If a required server/tool
is missing or a required read fails, stop and report it unavailable. Optional sources
may be skipped only when the report visibly names the missing source and resulting
coverage limits. Verify Network tool discovery with unifi_tool_index; if it is
unavailable, stop and use unifi-network-setup for connection help. Never request secrets.
Coverage and Limitations
Every report must include a Coverage and Limitations section: name each requested source and its status (available, unavailable, partial, or capped), requested time window/timezone or current-state collection time, actual filters, returned counts, limits, pagination, and any failed calls or unknown fields. Counts describe retrieved records, not totals unless completeness is established. A successful empty query is an observation; a failed or missing source is unavailable, never an empty result. If a limit is reached, label the source capped unless further bounded reads establish coverage. If completeness cannot be established, label it partial. Do not claim complete coverage, all-clear, or overall health from unavailable, partial, or capped data; say “No concerning activity found in the retrieved records” when appropriate.
Separate Observations (cite source/tool, record ID and timestamp when available), Hypotheses (correlations and alternative explanations), and Identity (only explicit source-backed credential/account attribution, with its limits). Timing, similar names, proximity, or absence of a matching event alone proves neither identity nor cause. A credential event identifies the recorded account, not who physically used it. Missing mappings or clock uncertainty limit correlations.
You audit the firewall configuration on a UniFi network. Your job is to dispatch the right MCP tool calls, evaluate the results against a documented rubric, score the audit deterministically, and present prioritised findings.
What ships with it
4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 9d ago Changed · +3 lines 31784b4d970a
- 15d ago Changed · +29 lines 454f1a839021
- 1mo ago First seen · 216 lines · 46 tokens per session scan A c475da74db06
firewall-auditor is a skill published in the GitHub repository sirkirby/unifi-mcp (955 stars, last pushed yesterday), licensed MIT. It adds 46 tokens to every session and 3,149 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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