convex-domains

convex-domains is a skill for Claude Code, Codex from get-convex/agent-skills. It costs 29 tokens per session (553 once invoked), scanned A, a copy of convex-domains, Apache-2.0.

A setup guide for connecting a domain you already own to a Convex app, including DNS records and authentication settings.

In plain words
What is it for?
Adding a custom domain to a Convex app, changing DNS records, attaching the domain, and updating the authentication origin.
Why use it?
It explains the configuration needed to use your own web address with the app and keep sign-in origins aligned.

Skill for Claude CodeCodex

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

Good fit Adding a custom domain to a Convex app, changing DNS records, attaching the domain, and updating the authentication origin.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/get-convex/agent-skills/convex-domains
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 get-convex/agent-skills --skill convex-domains
Clone the repo
git clone --depth 1 https://github.com/get-convex/agent-skills

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 convex-domains

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/get-convex/agent-skills/convex-domains"><img src="https://agentmods.dev/badge/skills/get-convex/agent-skills/convex-domains.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 29 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 553 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
  • Socket pass 4 Aug 2026
  • Snyk pass 4 Aug 2026
How audits are shown
Origin 100% copy Near-identical to another mod 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 $0.00029 $0.00553
Opus 5 $0.00015 $0.00277
Sonnet 5 $0.00006 $0.00111
Haiku 4.5 $0.00003 $0.00055

Measured 11d ago against content hash 580164712552, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

convex-domains 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.

Origin

This is a copy

100% identical to convex-domains — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/convex-domains/SKILL.md · 27 lines

How it starts

The opening of the file, as written. The whole thing — 27 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Set up a custom domain with your own provider

Walk the user's own registrar through pointing their domain at the Convex app: identify the target (hosting or deployment URL), create the DNS records, attach the custom domain, and rebind the auth origin if the app uses auth.

Workflow

  1. Identify the target: the published site host (for *.convex.app static hosting) or the deployment's HTTP actions URL.
  2. Detect an ALREADY-AUTHENTICATED DNS CLI for the user's provider and OFFER to create the records automatically: Cloudflare → flarectl dns create (note: wrangler itself doesn't manage DNS records) or the CF API via their token env; Route53 → aws route53 change-resource-record-sets; Google Cloud DNS → gcloud dns record-sets create; DigitalOcean → doctl compute domain records create; Vercel DNS → vercel dns add. Check auth read-only first (flarectl user info / aws sts get-caller-identity / doctl account get); show the exact commands and get a yes before running.
  3. If no authed CLI (or the user declines), tell the user exactly which records to create at THEIR registrar: the CNAME (or A/ALIAS at the apex) plus the TXT verification record — with concrete host/value strings, not placeholders.
  4. Attach the domain as a Convex custom domain (dashboard or CLI) and wait for verification; note DNS propagation can take minutes to hours. Verify records landed with dig +short.
  5. If the app uses auth (passkeys/OAuth), rebind the auth origin (SITE_URL / RP_ID / ORIGIN env vars) to the new domain and re-deploy/re-publish.
  6. Verify: the domain serves the app over HTTPS, including the apex → www redirect if configured.

Rules

  • Never ask for or handle registrar credentials. A CLI already authenticated on the user's machine is fine — the credential stays in the tool; never install a CLI or run its login/auth flow for this, and never echo tokens.
  • DNS changes on a live domain are user-visible: show the exact commands and confirm before running them; verify afterwards with dig.
  • Always include the TXT verification record, not just the CNAME.
  • Rebinding the domain changes the auth origin — re-publish after, or sign-in breaks.

Read the full file on GitHub · 27 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 · 27 lines · 29 tokens per session scan A 580164712552

Subscribe to this mod's changes

convex-domains is a skill published in the GitHub repository get-convex/agent-skills (56 stars, last pushed yesterday), licensed Apache-2.0. It adds 29 tokens to every session and 553 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to convex-domains, differing in 0 lines, and is treated as a copy.

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