A guide for using ngrok to make a local service reachable over the internet through a tunnel. A tunnel forwards internet requests to a program running on your computer.

For sharing a local server publicly, testing it from another network, or exposing tmux-adapter through ngrok.

It removes the need to deploy a local service before someone outside your network can test or access it.

How gastownhall/tmux-adapter configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to gastownhall/tmux-adapter. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/gastownhall/tmux-adapter/main/.claude/skills/ngrok-start/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/gastownhall/tmux-adapter

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/gastownhall/tmux-adapter/ngrok-start/github.svg)](https://agentmods.dev/skills/gastownhall/tmux-adapter/ngrok-start)

Your own site

<a href="https://agentmods.dev/skills/gastownhall/tmux-adapter/ngrok-start"><img src="https://agentmods.dev/badge/skills/gastownhall/tmux-adapter/ngrok-start/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/gastownhall/tmux-adapter/ngrok-start"><img src="https://agentmods.dev/badge/skills/gastownhall/tmux-adapter/ngrok-start.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 47 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 466 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 unknown 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	$0.00047	$0.00466
Opus 5.5	$0.00019	$0.00186
Sonnet 5.5	$0.00009	$0.00093
Haiku 4.5	$0.00005	$0.00047

Measured 2mo ago against content hash 68dc987d6ca2, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ngrok-start 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 2mo ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/expose.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.

Makes network callslowCapability

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

- **Tunnels not appearing**: Query `curl -s http://localhost:4040/api/tunnels` to check status.

.claude/skills/ngrok-start/SKILL.md · 52 lines

The source is not reproduced here

No licence file

Read it on GitHub

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/expose.sh 2.9 KB runs code

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.

2mo ago First seen · 52 lines · 47 tokens per session scan A 68dc987d6ca2

Subscribe to this mod's changes

ngrok-start is a skill published in the GitHub repository gastownhall/tmux-adapter (2 stars, last pushed 17d ago), with no licence file. It adds 47 tokens to every session and 466 once invoked, about $0.0002 per session on Opus 5.5. 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.

Cloud DevOps and cloud

ngrok-start next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
ngrok-startgastownhall/tmux-adapter	Skill	2	17d ago	none	A	47	Claude Code
gke-compute-classesgoogle/skills	Skill	22k	yesterday	Apache-2.0	A	83	Claude Code, Codex
gke-reliabilitygoogle/skills	Skill	22k	yesterday	Apache-2.0	A	85	Claude Code, Codex
gke-workload-securitygoogle/skills	Skill	22k	yesterday	Apache-2.0	A	171	Claude Code, Codex
cloud-architectJeffallan/claude-skills	Skill	12k	7d ago	MIT	A	71	Claude Code
nemo-automodel-launcher-configNVIDIA/skills	Skill	3.9k	yesterday	Apache-2.0	A	30	Claude Code
azure-mgmt-botservice-dotnetmicrosoft/skills	Skill	3.2k	yesterday	MIT	A	78	Claude Code

tmux-adapter: Skill for Claude Code

Borrowing it

Wrote this? Show the measurements

What it costs to keep this loaded

Grade A, and why

Makes network callslowCapability

The source is not reproduced here

No licence file

What ships with it

What this file has done since we first saw it

ngrok-start compared with skills from other repositories