tailscale

tailscale is a skill for Claude Code, Codex from el-feo/ai-context. It costs 123 tokens per session (1,147 once invoked), scanned D, original, MIT.

A toolkit for managing Tailscale, a VPN that connects devices into a private network. It covers secure device access, mesh networking, routing, name resolution, access rules, and related production setup.

In plain words
What is it for?
Use it to connect devices, inspect network peers, configure subnet routers or exit nodes, enable SSH access, set access rules, use device names with MagicDNS, and publish services through Tailscale.
Why use it?
It helps replace manual network access arrangements with centrally managed private connections and permissions. It also provides commands and procedures for diagnosing connections and configuring special network roles.

Skill for Claude CodeCodex

Part of the devops plugin — 3 skills, 1 command shipped together

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.

agentmods
npx agentmods add skills/el-feo/ai-context/tailscale
Any agent
npx skills add el-feo/ai-context --skill tailscale
Clone the repo
git clone --depth 1 https://github.com/el-feo/ai-context

Made for: Claude Code, Codex.

Or install devops, the plugin that ships this one along with the rest of its 3 skills, 1 command.

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 tailscale

README.md
[![agentmods](https://agentmods.dev/badge/skills/el-feo/ai-context/tailscale.svg)](https://agentmods.dev/skills/el-feo/ai-context/tailscale)
Your own site
<a href="https://agentmods.dev/skills/el-feo/ai-context/tailscale"><img src="https://agentmods.dev/badge/skills/el-feo/ai-context/tailscale.svg" alt="Measured on agentmods" height="20"></a>
Per session 123 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,147 The whole file, excluding the scripts and references it only reads on demand.
Security scan D 3 findings. Scan, not verified.
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.

ModelPer sessionOnce invoked
Fable 5 $0.00123 $0.01147
Opus 5 $0.00062 $0.00574
Sonnet 5 $0.00025 $0.00229
Haiku 4.5 $0.00012 $0.00115

Measured 3d ago against content hash 3f45682d2ec8, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade D, and why

tailscale scanned grade D with 3 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 3d ago.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/setup_exit_node.sh, scripts/setup_subnet_router.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

sudo tailscale up

Downloads and executes remote codehighSupply chain

curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.

curl -fsSL https://tailscale.com/install.sh | sh

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -fsSL https://tailscale.com/install.sh | sh
plugins/devops/skills/tailscale/SKILL.md · 131 lines

How it starts

The opening of the file, as written. The whole thing — 131 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Tailscale Network Management

Quick Start

# Install (Linux)
curl -fsSL https://tailscale.com/install.sh | sh

# Install (macOS)
brew install tailscale

# Connect and authenticate
sudo tailscale up

# Check status
tailscale status

# Get your Tailscale IP
tailscale ip -4

Common Operations

Connection Management

tailscale up                    # Connect
tailscale down                  # Disconnect (daemon stays running)
tailscale status                # View peers
tailscale status --json | jq    # Detailed network map
tailscale ping machine-name     # Test connectivity (ignores ACLs)
tailscale ping --icmp machine-name  # Test with ACLs
tailscale set --exit-node=name  # Use exit node
tailscale set --exit-node=      # Stop using exit node

Use tailscale set to change settings without reconnecting. Use tailscale up for initial setup.

Subnet Router Setup

Run scripts/setup_subnet_router.sh <subnet_cidr> [auth_key] for automated setup.

Manual steps:

  1. Enable IP forwarding on the router device
  2. sudo tailscale up --advertise-routes=192.168.1.0/24
  3. Approve routes in admin console (Machines > device > Edit route settings)
  4. Linux clients: sudo tailscale up --accept-routes

Exit Node Setup

Run scripts/setup_exit_node.sh [auth_key] for automated setup.

Manual steps:

  1. Enable IP forwarding on the exit node
  2. sudo tailscale up --advertise-exit-node
  3. Approve in admin console (Machines > device > Edit route settings > Use as exit node)
  4. Clients: tailscale set --exit-node=node-name --exit-node-allow-lan-access

Tailscale SSH

# Enable on server
sudo tailscale set --ssh

# Connect from client (no special setup needed)
ssh machine-name

Requires both network access grant and SSH ACL rule. See acl-examples.md for SSH ACL patterns.

Serve and Funnel

# Serve locally to tailnet
tailscale serve 3000

# Expose to public internet (ports 443, 8443, or 10000 only)
tailscale funnel 3000

# TCP forwarding with TLS termination
tailscale serve --tls-terminated-tcp=5432 localhost:5432

# Check status / turn off
tailscale serve status
tailscale serve off

Read the full file on GitHub · 131 lines

Files

What ships with it

7 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.

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. 3d ago First seen · 131 lines · 123 tokens per session scan D 3f45682d2ec8

Subscribe to this mod's changes

tailscale is a skill published in the GitHub repository el-feo/ai-context (12 stars, last pushed 1mo ago), licensed MIT. It adds 123 tokens to every session and 1,147 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it D with 3 findings (asks for root, downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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