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.
npx skills add vineetu/simple-host --skill connect-domaingit clone --depth 1 https://github.com/vineetu/simple-hostWrote 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.
[](https://agentmods.dev/skills/vineetu/simple-host/connect-domain)<a href="https://agentmods.dev/skills/vineetu/simple-host/connect-domain"><img src="https://agentmods.dev/badge/skills/vineetu/simple-host/connect-domain/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.
<a href="https://agentmods.dev/skills/vineetu/simple-host/connect-domain"><img src="https://agentmods.dev/badge/skills/vineetu/simple-host/connect-domain.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00178 | $0.02829 |
| Opus 5.5 | $0.00071 | $0.01132 |
| Sonnet 5.5 | $0.00036 | $0.00566 |
| Haiku 4.5 | $0.00018 | $0.00283 |
Grade A, and why
connect-domain 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 7d 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.
How it starts
The opening of the file, as written. The whole thing — 165 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Connect a custom domain
Open ChatGPT Plugins. Click Add, then choose Add custom MCP server. Name it Simple Host, paste https://simple-host.app/mcp, and save. In the sign-in window, sign in with Google or an email code, then choose Allow. In a chat, pick Simple Host from the + menu, or just ask.
Open Claude, then Settings, then Connectors, then Browse connectors. Search for Simple Host, choose Connect, sign in, then choose Allow. It works on web, desktop, and phone. Claude also lists a Simple Host plugin (Customize → Plugins → Discover) that adds the connector and skills in one step.
A Simple Host site is already live at its own address, https://<site>.<handle>.simple-host.app/,
where visitor sign-in and private collections already work. This is optional and gives it a
nicer or shorter address, served over HTTPS: a free <name>.simple-host.app, or the person's
own domain. You do the Simple Host side with the
tools; the person adds two DNS records where their domain is managed. The person's own explicit
instructions take priority over this guidance.
You are already signed in as the person. Never ask for a Simple Host email, code or password. If a tool says the connection is no longer signed in, ask them to reconnect Simple Host in the app's settings.
Ask first. Connecting an address moves the site there. Before any connect_domain call,
name the site and the exact address and wait for a yes. The same goes for remove_domain and
for any DNS change you make yourself.
The free address: <name>.simple-host.app
One call, no DNS step. Offer it first when the person wants a shorter address and has no domain of their own.
connect_domainwithsiteanddomain: "clay-studio.simple-host.app". It answersstatus: "active"at once. Give the personhttps://clay-studio.simple-host.app/.- First come, first served.
domain_taken: another site has it; suggest another name.name_reserved: reserved names (www,api,admin,mailand others) are refused.invalid_name: one label, lowercase letters, digits and hyphens. - It behaves exactly like a custom domain: everything below applies, and the site's
<site>.<handle>.simple-host.appaddress redirects there. - A site has one bound address. Claiming the free address replaces a custom domain at once; a custom domain replaces the free address only once it is live, and until then the site keeps serving at the free address. A free address the site lets go keeps redirecting to it.
What ships with it
2 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.
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.
- 7d ago Changed 238d3b1706bc
- 11d ago Changed · +4 lines 3644f394fa2e
- 21d ago Changed · +24 lines bac79f6b9b85
- 23d ago Changed · +4 lines 90b21e5a34de
- 24d ago Changed · +34 lines · +3 tokens per session 91ed2dc0d30f
- 25d ago Changed · +18 lines · +43 tokens per session e8a00a7eba59
- 27d ago Changed · -152 lines · +13 tokens per session 1cd8151d8b10
- 1mo ago Changed · +91 lines · +11 tokens per session 689e4164ea42
- 1mo ago First seen · 142 lines · 108 tokens per session scan A 131ab6ab4438
connect-domain is a skill published in the GitHub repository vineetu/simple-host (1 stars, last pushed today), licensed MIT. It adds 178 tokens to every session and 2,829 once invoked, about $0.0007 per session on Opus 5.5. 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.
Other skills, from other repositories
cloud-administration
Administers the cloud the company runs on rather than the one it sells — tenant and subscription structure, the SaaS estate and who owns each app, identity as the real perimeter, cloud spend that arrives as a surprise, and what the provider does not do for you. Use this to structure subscriptions or tenants, get…
telephony-and-conferencing
Runs voice and meeting infrastructure — phone systems and numbers, emergency calling obligations, conference rooms and their AV, call recording and its retention consequences, and the porting that makes provider changes go badly. Use this to replace a phone system, fix rooms nobody can start a meeting in, meet…
virtualization-operations
Runs the hypervisor layer beneath the servers — host capacity and consolidation ratios, VM sprawl, snapshot discipline, resilience and live migration, and licensing that counts cores rather than instances. Use this to size or expand a cluster, work out why VMs are slow when the hosts look idle, clean up sprawl, set…
network-administration
Designs and operates the corporate network — segmentation, remote access, wireless, DNS and addressing, and diagnosing network problems. Use this to segment a network, set up or fix remote access, diagnose intermittent connectivity, plan addressing or DNS, or assess whether the network's trust assumptions still hold.
business-continuity-and-resilience
Plans for operating through disruption — impact analysis, recovery objectives, continuity plans, and the exercises that prove they work. Use this to run a business impact analysis, set RTO and RPO, write or test a continuity plan, prepare for a supplier or site failure, or answer a customer's resilience questionnaire.
cloud-infrastructure
Designs and runs cloud infrastructure — environments, infrastructure as code, networking and isolation, scaling, and cost. Use this to design a cloud environment, control infrastructure spend, set up environment separation, plan for scale or region failure, or review infrastructure someone configured by hand.