A tool for controlling Pi-hole version 6, a DNS service that can block unwanted internet domains. It shows DNS activity by device and can pause blocking or change allowed and denied domains.

Use it to inspect DNS statistics, find the top domains or clients, review a device’s internet destinations, pause or resume blocking, and add allow or deny rules.

It makes it easier to see which devices contact which websites and to manage blocking from scripts. Credentials are kept outside the code and loaded when needed.

pihole — Skill for Claude Code by larsboes

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 larsboes/Axon --skill pihole

Clone the repo

git clone --depth 1 https://github.com/larsboes/Axon

Made for: Claude Code.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/larsboes/axon/pihole/github.svg)](https://agentmods.dev/skills/larsboes/axon/pihole)

Your own site

<a href="https://agentmods.dev/skills/larsboes/axon/pihole"><img src="https://agentmods.dev/badge/skills/larsboes/axon/pihole/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/larsboes/axon/pihole"><img src="https://agentmods.dev/badge/skills/larsboes/axon/pihole.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 139 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,152 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 original No closer match found 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.

Model	Per session	Once invoked
Fable 5.1	$0.00139	$0.01152
Opus 5	$0.00069	$0.00576
Sonnet 5	$0.00028	$0.00230
Haiku 4.5	$0.00014	$0.00115

Measured 8d ago against content hash e16bdb1532e8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

pihole 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 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.

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.

Packs/home-automation/skills/pihole/SKILL.md · 79 lines

How it starts

The opening of the file, as written. The whole thing — 79 lines — stays where its author put it; the contents beside it link to each section on GitHub.

pihole

Drive the home Pi-hole over its v6 REST API (/api/..., auth via X-FTL-SID). Pi-hole logs every DNS query, so it answers "what does this device talk to on the internet" — per-device egress, the payoff after isolating IoT onto its own VLAN. Pure Python 3 stdlib, no deps: python3 on the host is enough.

Setup (once)

In the overlay config (non-secret): set PIHOLE_HOST (base URL/host of the Pi-hole; scheme + :port optional) in <overlay>/config/home-assistant.vars (override its root with $AXON_HOME_ROOT). The tool fails cleanly, naming a missing/TODO- key, until it's filled in.
In Bitwarden (secret only): an item home-assistant/pihole (override with $PIHOLE_BW_ITEM) with the custom field PIHOLE_PASSWORD (the admin/API password). Provision via Axon setup-secret.sh. The item may not exist yet — the tool fails cleanly, naming the missing field, until it does.
Point bw at the vault once: bw config server <vault-url>.
On the network: the Fritz!Box DHCP DNS must point at the Pi for whole-house coverage, and Pi-hole must run in network_mode: host so per-client source IPs survive (Docker NAT would hide them and break per-device egress).

Run

Unlock Bitwarden interactively, then call (the tool reads $BW_SESSION, never the master password):

export BW_SESSION=$(bw unlock --raw)
scripts/pihole status                       # overview + blocking state
scripts/pihole egress <device-ip>           # what one device phones home to
scripts/pihole top-domains 20
scripts/pihole top-clients
scripts/pihole block-off 300                # pause blocking 5 min
scripts/pihole block-on
scripts/pihole deny telemetry.example.com
scripts/pihole allow updates.example.com

scripts/pihole --help (or <command> --help) lists every command and its args.

Egress allow-listing (turn isolation into containment)

After isolating an IoT device, lock it to only its needed vendor domains: review egress <ip>, then deny everything else (or build a per-device allowlist in the UI). A compromised camera then can't exfiltrate or pivot — DNS for anything but its vendor is refused.

Read the full file on GitHub · 79 lines

Files

What ships with it

1 file 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.

scripts/pihole 12 KB

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.

8d ago First seen · 79 lines · 139 tokens per session scan A e16bdb1532e8

Subscribe to this mod's changes

pihole is a skill published in the GitHub repository larsboes/Axon (1 stars, last pushed yesterday), licensed MIT. It adds 139 tokens to every session and 1,152 once invoked, about $0.0007 per session on Opus 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 2026-08-31.

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pihole

Getting it into your agent

Wrote this? Show the measurements

What it costs to keep this loaded

Grade A, and why

Nothing flagged

How it starts

pihole

Setup (once)

Run

Egress allow-listing (turn isolation into containment)

What ships with it

What this file has done since we first saw it

Other skills, from other repositories

eng-runbook

remote-compute-ssh

compute-env-setup

Tencent Cloud Infra

terraform-ops

cloud-migration