tunnel

tunnel is a skill for Claude Code from anivaryam/anivaryam-plugins. It costs 176 tokens per session (2,464 once invoked), scanned A, original, MIT.

A command-line tool for giving a local service a public internet address through a relay that you operate. It supports HTTP, TCP, and UDP connections, including optional routing by subdomain or path.

In plain words
What is it for?
Use it to temporarily expose a local web server, webhook endpoint, Postgres or SSH service, DNS service, or game server; it is not intended for production traffic.
Why use it?
It provides a public URL for development servers, webhook receivers, or demos when a local service cannot be reached from the internet or hosted tunnel limits are a problem.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the tunnel plugin — 1 skill, 2 commands, 1 agent shipped together

Good fit Use it to temporarily expose a local web server, webhook endpoint, Postgres or SSH service, DNS service, or game server; it is not intended for production traffic.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/anivaryam/anivaryam-plugins/tunnel
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 anivaryam/anivaryam-plugins --skill tunnel
Clone the repo
git clone --depth 1 https://github.com/anivaryam/anivaryam-plugins

Made for: Claude Code.

Or install tunnel, the plugin that ships this one along with the rest of its 1 skill, 2 commands, 1 agent.

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 tunnel

README.md
[![agentmods](https://agentmods.dev/badge/skills/anivaryam/anivaryam-plugins/tunnel/github.svg)](https://agentmods.dev/skills/anivaryam/anivaryam-plugins/tunnel)
Your own site
<a href="https://agentmods.dev/skills/anivaryam/anivaryam-plugins/tunnel"><img src="https://agentmods.dev/badge/skills/anivaryam/anivaryam-plugins/tunnel/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 tunnel

Your own site · 80×15
<a href="https://agentmods.dev/skills/anivaryam/anivaryam-plugins/tunnel"><img src="https://agentmods.dev/badge/skills/anivaryam/anivaryam-plugins/tunnel.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 176 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,464 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00176 $0.02464
Opus 5 $0.00088 $0.01232
Sonnet 5 $0.00035 $0.00493
Haiku 4.5 $0.00018 $0.00246

Measured 10d ago against content hash 837b631d1355, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

tunnel 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 10d 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.

curl -sf https://test.relay.example.com/ # hit it (subdomain mode)
plugins/tunnel/skills/tunnel/SKILL.md · 169 lines

How it starts

The opening of the file, as written. The whole thing — 169 lines — stays where its author put it; the contents beside it link to each section on GitHub.

tunnel

Self-hosted ngrok alternative. CLI client + relay server. You own the relay, so the public URL stays under your domain.

Repo: github.com/anivaryam/tunnel. Binary: tunnel (install via brokit install tunnel, release tarball, or go install — note: go install skips daemon mode).

When to reach for it

  • Need a public URL for a local dev server, webhook receiver, or demo.
  • Need a public URL for TCP (Postgres, SSH) or UDP (DNS, game server).
  • ngrok rate limits / quotas are blocking work.
  • You control DNS and want the public URL under your own domain.

Do NOT use for: production traffic (deploy the app properly), bypassing corporate firewall policy, or anything where the public URL is the final delivery surface.

One-time setup

tunnel config set-server https://relay.example.com
tunnel config set-token   <your-token>
tunnel config show                # confirm (token masked)
tunnel doctor                     # validate config + relay reachability

Config lives at ~/.tunnel/config.yml (mode 0600). The doctor step is cheap and catches the common breakages (bad URL, unreachable relay, missing token) before you try to expose anything.

Expose a port

tunnel http 3000                              # random 16-char ID
tunnel http 3000 --name api                   # stable, requestable name
tunnel http 3000 --inspect                    # local inspector at :4040
tunnel tcp  5432                              # Postgres / SSH / etc.
tunnel udp  53                                # DNS / game server / etc.

URL form depends on the relay's BASE_DOMAIN:

  • Path mode (no BASE_DOMAIN): https://relay.example.com/t/<id>/
  • Subdomain mode (BASE_DOMAIN=relay.example.com): https://<id>.relay.example.com/

Named tunnels follow the same rule with <name> in place of <id>. Name rules: 1–32 chars, [a-z0-9-], no leading/trailing hyphen. Reserved names (dashboard, metrics, mail, login, app, docs, status, staging, prod, …) are rejected — full list in the relay's internal/server/names.go.

Read the full file on GitHub · 169 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. 10d ago First seen · 169 lines · 0 tokens per session scan A 837b631d1355

Subscribe to this mod's changes

tunnel is a skill published in the GitHub repository anivaryam/anivaryam-plugins (2 stars, last pushed 3mo ago), licensed MIT. It adds 176 tokens to every session and 2,464 once invoked, about $0.0009 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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