custom-domain-troubleshooting

custom-domain-troubleshooting is a skill for Claude Code, Codex from qaml-ai/camelAI. It costs 49 tokens per session (1,417 once invoked), scanned A, original, MIT.

A troubleshooting guide for connecting an app to a custom domain, such as www.example.com, and securing it with SSL, the encryption used for HTTPS.

In plain words
What is it for?
Setting up or fixing a custom hostname, adding the required DNS record, resolving certificate problems, and diagnosing domain activation issues.
Why use it?
It helps identify DNS mistakes, certificate delays, SSL errors, 522 errors, and apps that fail to load at their custom address.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Setting up or fixing a custom hostname, adding the required DNS record, resolving certificate problems, and diagnosing domain activation issues.

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Install with agentmods
npx agentmods add skills/qaml-ai/camelai/custom-domain-troubleshooting
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 qaml-ai/camelAI --skill custom-domain-troubleshooting
Clone the repo
git clone --depth 1 https://github.com/qaml-ai/camelAI

Made for: Claude Code, Codex.

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 custom-domain-troubleshooting

README.md
[![agentmods](https://agentmods.dev/badge/skills/qaml-ai/camelai/custom-domain-troubleshooting/github.svg)](https://agentmods.dev/skills/qaml-ai/camelai/custom-domain-troubleshooting)
Your own site
<a href="https://agentmods.dev/skills/qaml-ai/camelai/custom-domain-troubleshooting"><img src="https://agentmods.dev/badge/skills/qaml-ai/camelai/custom-domain-troubleshooting/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 custom-domain-troubleshooting

Your own site · 80×15
<a href="https://agentmods.dev/skills/qaml-ai/camelai/custom-domain-troubleshooting"><img src="https://agentmods.dev/badge/skills/qaml-ai/camelai/custom-domain-troubleshooting.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 49 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,417 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Excessive Agency · line 18
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
How audits are shown
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 $0.00049 $0.01417
Opus 5 $0.00024 $0.00709
Sonnet 5 $0.00010 $0.00283
Haiku 4.5 $0.00005 $0.00142

Measured 11d ago against content hash 675a6a0594aa, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

custom-domain-troubleshooting 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 11d 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.

sandbox/skills/custom-domain-troubleshooting/SKILL.md · 110 lines

How it starts

The opening of the file, as written. The whole thing — 110 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Custom Domain Troubleshooting

camelAI custom domains are configured per deployed app. Each app can have one exact custom hostname, such as www.example.com, app.example.com, or example.com.

How It Works

  • Users choose the exact hostname they want for a specific app.
  • Wildcards are not supported.
  • A hostname can only be assigned to one app at a time.
  • Apex/root domains are allowed if the user's DNS provider supports CNAME-like flattening/ALIAS/ANAME at the apex.
  • camelAI provides the DNS target. Users should not invent their own target.
  • Cloudflare provisions one custom hostname certificate per exact hostname.
  • SSL validation uses HTTP validation through Cloudflare for SaaS. Do not ask users to add _acme-challenge or other DCV records.

Required DNS Record

There is one DNS record per custom hostname:

Field Value
Host The exact hostname the user chose, for example www.example.com or app.example.com
Type CNAME
Target Shown by get_custom_domain as dns_target, normally custom-domains.camelai.app

For apex/root domains like example.com, many DNS providers do not allow a normal CNAME at the root. In that case tell the user to use the provider's CNAME flattening, ALIAS, or ANAME feature pointing to the same dns_target. If their provider has no apex aliasing feature, they should use a subdomain such as www.example.com.

When the Custom Domain URL Works

The custom domain should work when all of these are true:

  1. The app has a custom hostname configured.
  2. The hostname's DNS resolves to the dns_target.
  3. The Cloudflare hostname status is active.
  4. The Cloudflare ssl_status is active.

Until then, the app still works on its default *.camelai.app URL.

Diagnostic Workflow

Step 1: Call get_custom_domain

This returns:

  • dns_target — the target all custom hostnames should point to
  • apps[] — each app's configured hostname, Cloudflare hostname status, SSL status, error, and DNS check
  • apps[].dns_checks.routing_cname — live DNS resolution for that exact app hostname

Read the full file on GitHub · 110 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. 11d ago First seen · 110 lines · 49 tokens per session scan A 675a6a0594aa

Subscribe to this mod's changes

custom-domain-troubleshooting is a skill published in the GitHub repository qaml-ai/camelAI (367 stars, last pushed 6d ago), licensed MIT. It adds 49 tokens to every session and 1,417 once invoked, about $0.0002 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 2026-08-30.

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