dns-filter

dns-filter is a skill for Claude Code, Codex from withoneai/one-agent-plugin. It costs 108 tokens per session (5,470 once invoked), scanned A, a copy of 2-chat, MIT.

A cloud service that protects networks and devices by filtering domain-name requests, the lookups that turn website names into internet addresses. It blocks malicious domains, unwanted content, and other threats.

In plain words
What is it for?
Use it to enforce browsing policies, block harmful domains, review DNS traffic reports, and use threat information to protect connected devices.
Why use it?
It can stop phishing, malware, and restricted websites before a device connects to them.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to enforce browsing policies, block harmful domains, review DNS traffic reports, and use threat information to protect connected devices.

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Install with agentmods
npx agentmods add skills/withoneai/one-agent-plugin/dns-filter
Install

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.

Any agent
npx skills add withoneai/one-agent-plugin --skill dns-filter
Clone the repo
git clone --depth 1 https://github.com/withoneai/one-agent-plugin

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for dns-filter

README.md
[![agentmods](https://agentmods.dev/badge/skills/withoneai/one-agent-plugin/dns-filter/github.svg)](https://agentmods.dev/skills/withoneai/one-agent-plugin/dns-filter)
Your own site
<a href="https://agentmods.dev/skills/withoneai/one-agent-plugin/dns-filter"><img src="https://agentmods.dev/badge/skills/withoneai/one-agent-plugin/dns-filter/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.

agentmods 80×15 button for dns-filter

Your own site · 80×15
<a href="https://agentmods.dev/skills/withoneai/one-agent-plugin/dns-filter"><img src="https://agentmods.dev/badge/skills/withoneai/one-agent-plugin/dns-filter.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 108 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,470 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 77% copy Near-identical to another mod in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00108 $0.05470
Opus 5 $0.00054 $0.02735
Sonnet 5 $0.00022 $0.01094
Haiku 4.5 $0.00011 $0.00547

Measured 5d ago against content hash bd22133ca3e1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

dns-filter 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 5d 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.

Origin

This is a copy

77% identical to 2-chat — 315 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

platforms/one-dns-filter/skills/dns-filter/SKILL.md · 200 lines

How it starts

The opening of the file, as written. The whole thing — 200 lines — stays where its author put it; the contents beside it link to each section on GitHub.

DNSFilter through One

A cloud-based DNS security service that protects networks and devices by blocking malicious domains, filtering unwanted content, enforcing policy controls, and providing threat intelligence to prevent malware, phishing, and cyber threats at the DNS level.

One exposes DNSFilter through four MCP tools. The table below carries real action ids from One's knowledge base, so for a common operation you can skip search and go straight to reading the action's parameters.

How to run an action

  1. Find the action in the table below, or call search_one_platform_actions with platform dns-filter if it is not listed.
  2. Call get_one_action_knowledge with the action id. Do this every time, including for actions in this table. The table gives you the id, not the parameters.
  3. Call execute_one_action with parameters copied from that knowledge.

Never guess a parameter name, a body field, or an enum value. The knowledge has the real schema, and a guessed field is either a 400 or a silent write of the wrong thing.

Before you start

Call list_one_integrations once and confirm DNSFilter is connected. If it is missing, the user has not connected it: say so and point them at https://app.withone.ai rather than reaching for raw HTTP.

Each connection carries an access field. If it reports {"policy": "methods", "methods": ["GET"]} the agent is read-only here, so plan a read-only answer instead of attempting a write that will be refused.

Before a write

Creates, updates, deletes and sends land on a real DNSFilter account and cannot be recalled. State the action and the specific target in one line before the first write in a task, and let the user stop you. Reads need no confirmation.

Actions

TrafficReports

Action Method Path Action id
Get Application Request Statistics for Users GET /v1/traffic_reports/total_applications_users_stats conn_mod_def::GKHfYWe3aAY::7x23yBnETwSQmKRRqRu3CQ
Get QPS Active Users Traffic Report GET /traffic_reports/qps_active_users conn_mod_def::GKHfZQm3wmE::1o4jyKDwS8qPSfhug4oYSA
Get QPS for Active Collections GET /v1/traffic_reports/qps_active_collections conn_mod_def::GKHfZBQa0Ic::utxq8rmLQaepK3dZ8W5glA
Get QPS for Active Roaming Clients GET /traffic_reports/qps_active_agents conn_mod_def::GKHfZCYf8RM::SAOgSeOZQWmSDN1pgw1S2Q
Get QPS for Organizations GET /v1/traffic_reports/qps_active_organizations conn_mod_def::GKHfZC4VX-A::Tc6t_YwyTCqPrY1evKGAEg
Get Queries Per Second for Traffic Reports GET /v1/traffic_reports/qps conn_mod_def::GKHfZP0Szsg::vHzg5SRJS6etP2G6FnLykQ
Get Roaming Client Application Request Statistics GET /traffic_reports/total_applications_agents_stats conn_mod_def::GKHfYKew1xg::tOQslu1LTiGACUyiJuiUjg
Get Top Organizations by Number of Requests GET /v1/traffic_reports/top_organizations_requests conn_mod_def::GKHfaAlZNh8::cKVTdU-sQ4aSrioSLzdLfg
Get Top Requested Domains Report GET /traffic_reports/top_domains conn_mod_def::GKHfZk-MIrk::Iwg0vEL8T0axLj4ArjTdlg
Get Top Traffic Report Collections GET /traffic_reports/top_collections conn_mod_def::GKHfZtcgb0Y::TbN4klCsRj-NzdGeSkC92g
Get Top Users Traffic Report GET /traffic_reports/top_users conn_mod_def::GKHfaCd90_k::DO-e7jAlSj-FLT3MFr1Slg
Get Total Application Request Statistics GET /v1/traffic_reports/total_applications_stats conn_mod_def::GKHfYZka0CI::-_GHOSqYR8qi_49DQXSwEg

Read the full file on GitHub · 200 lines

Changes

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.

  1. 5d ago First seen · 200 lines · 0 tokens per session scan A bd22133ca3e1

Subscribe to this mod's changes

dns-filter is a skill published in the GitHub repository withoneai/one-agent-plugin (1 stars, last pushed 19d ago), licensed MIT. It adds 108 tokens to every session and 5,470 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. It is 77% identical to 2-chat, differing in 315 lines, and is treated as a copy.

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