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 tuanductran/nextdns-skills --skill nextdns-cligit clone --depth 1 https://github.com/tuanductran/nextdns-skillsWrote 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/tuanductran/nextdns-skills/nextdns-cli)<a href="https://agentmods.dev/skills/tuanductran/nextdns-skills/nextdns-cli"><img src="https://agentmods.dev/badge/skills/tuanductran/nextdns-skills/nextdns-cli/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/tuanductran/nextdns-skills/nextdns-cli"><img src="https://agentmods.dev/badge/skills/tuanductran/nextdns-skills/nextdns-cli.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 | $0.00076 | $0.01013 |
| Opus 5 | $0.00038 | $0.00507 |
| Sonnet 5 | $0.00015 | $0.00203 |
| Haiku 4.5 | $0.00008 | $0.00101 |
Grade A, and why
nextdns-cli scanned grade A 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 8d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
| [installation](rules/installation.md) | install, setup, curl, nextdns install | Install NextDNS CLI on various platforms | How it starts
The opening of the file, as written. The whole thing — 50 lines — stays where its author put it; the contents beside it link to each section on GitHub.
NextDNS CLI skills
Capability rules
| Rule | Keywords | Description |
|---|---|---|
| installation | install, setup, curl, nextdns install | Install NextDNS CLI on various platforms |
| windows-installation | Windows, GUI, CLI, installation, Systray, EXE | Windows-specific installation methods |
| macos-installation | macOS, Homebrew, App Store, installer | Install and configure NextDNS CLI on macOS |
| daemon-control | start, stop, restart, status, daemon | Control NextDNS daemon service |
| system-configuration | activate, deactivate, DNS resolver | Configure system DNS settings |
| profile-configuration | config, profile ID, settings | Configure NextDNS profile and settings |
| advanced-features | conditional forwarder, MAC address, subnet | Advanced routing and filtering |
| monitoring | log, cache-stats, discovered clients | Monitor and debug DNS queries |
| platform-specific | router, OpenWrt, pfSense, Synology | Platform-specific configurations |
| ddwrt-installation | DD-WRT, JFFS, NTP, router, time sync, dnsmasq | DD-WRT router installation and setup |
| docker-deployment | docker, container, DockerHub, host network, port mapping | Deploy NextDNS CLI via Docker containers |
| troubleshooting | diagnostic, connection test, DNS leak | Troubleshoot DNS issues |
| cache-configuration | cache-size, max-age, ttl, performance, optimization | Optimize DNS performance with CLI caching |
| config-file-format | nextdns.conf, automation, paths, structure | Manage the nextdns.conf file format |
| split-horizon | internal dns, lan, forwarder, local resolution | Resolve internal domains with NextDNS |
| conditional-profiles | cli, profile, conditional, subnet, mac-address | Apply different profiles based on clients |
| linux-advanced | linux, arch, alpine, aur, apk | Advanced Linux installation methods |
| nix | nix, nixos, declarative, configuration.nix, services.nextdns | Install NextDNS on NixOS declaratively |
| freebsd | freebsd, bsd, pkg, ports, rc.conf | Install NextDNS on FreeBSD via pkg/ports |
| raspberry-pi | raspberry pi, linux, dhcp, pi-hole alternative, network-wide | Deploy NextDNS CLI on Raspberry Pi as LAN DNS server |
| gl-inet | gl.inet, gl-mt3000, gl-axt1800, adguard, travel router | Install NextDNS CLI on GL.iNet routers |
| systemd-advanced | systemd-resolved, resolvectl, stub resolver, port 53, linux | Integrate NextDNS with systemd-resolved on modern Linux |
What ships with it
25 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.
- AGENTS.md 49 KB
- rules/advanced-features.md 2.2 KB
- rules/best-practices.md 1.7 KB
- rules/cache-configuration.md 1.6 KB
- rules/conditional-profiles.md 1.9 KB
- rules/config-file-format.md 1.4 KB
- rules/daemon-control.md 1.9 KB
- rules/ddwrt-installation.md 4.2 KB
- rules/docker-deployment.md 4.7 KB
- rules/freebsd.md 3.6 KB
- rules/gl-inet.md 3.8 KB
- rules/installation.md 2.5 KB
- rules/linux-advanced.md 2.2 KB
- rules/macos-installation.md 4.5 KB
- rules/monitoring.md 1.3 KB
- rules/nix.md 3.8 KB
- rules/platform-specific.md 2.5 KB
- rules/profile-configuration.md 2.1 KB
- rules/raspberry-pi.md 4.4 KB
- rules/split-horizon.md 1.3 KB
- rules/system-configuration.md 1.2 KB
- rules/systemd-advanced.md 4.7 KB
- rules/troubleshooting.md 2.2 KB
- rules/upgrade-uninstall.md 1.8 KB
- rules/windows-installation.md 2.5 KB
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.
- 8d ago First seen · 50 lines · 76 tokens per session scan A d438dbf6d325
nextdns-cli is a skill published in the GitHub repository tuanductran/nextdns-skills (4 stars, last pushed today), licensed MIT. It adds 76 tokens to every session and 1,013 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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