convex-quickstart

convex-quickstart is a skill for Claude Code, Codex from waynesutton/markdown-site. It costs 43 tokens per session (2,696 once invoked), scanned A, a copy of convex-quickstart, MIT.

A setup guide for adding Convex, a backend service, to a new or existing web app. It covers creating a project or connecting Convex to frameworks such as React, Next.js, Vue, or Svelte.

In plain words
What is it for?
Starting a new Convex project, adding Convex to an existing frontend, choosing a starter template, and checking that the development setup works.
Why use it?
It removes the uncertainty of the first setup steps, including installing Convex, connecting the app, configuring environment values, and starting the development connection.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/waynesutton/markdown-site/convex-quickstart
Any agent
npx skills add waynesutton/markdown-site --skill convex-quickstart
Clone the repo
git clone --depth 1 https://github.com/waynesutton/markdown-site

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-quickstart

README.md
[![agentmods](https://agentmods.dev/badge/skills/waynesutton/markdown-site/convex-quickstart.svg)](https://agentmods.dev/skills/waynesutton/markdown-site/convex-quickstart)
Your own site
<a href="https://agentmods.dev/skills/waynesutton/markdown-site/convex-quickstart"><img src="https://agentmods.dev/badge/skills/waynesutton/markdown-site/convex-quickstart.svg" alt="Measured on agentmods" height="20"></a>
Per session 43 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,696 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00043 $0.02696
Opus 5 $0.00022 $0.01348
Sonnet 5 $0.00009 $0.00539
Haiku 4.5 $0.00004 $0.00270

Measured 4d ago against content hash 1dbb9be931ae, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

convex-quickstart 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 4d 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-quickstart — 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.

.agents/skills/convex-quickstart/SKILL.md · 348 lines

How it starts

The opening of the file, as written. The whole thing — 348 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Convex Quickstart

Set up a working Convex project as fast as possible.

When to Use

  • Starting a brand new project with Convex
  • Adding Convex to an existing React, Next.js, Vue, Svelte, or other app
  • Scaffolding a Convex app for prototyping

When Not to Use

  • The project already has Convex installed and convex/ exists - just start building
  • You only need to add auth to an existing Convex app - use the convex-setup-auth skill

Workflow

  1. Determine the starting point: new project or existing app
  2. If new project, pick a template and scaffold with npm create convex@latest
  3. If existing app, install convex and wire up the provider
  4. Run npx convex dev to connect a deployment and start the dev loop
  5. Verify the setup works

Use the official scaffolding tool. It creates a complete project with the frontend framework, Convex backend, and all config wired together.

Pick a template

Template Stack
react-vite-shadcn React + Vite + Tailwind + shadcn/ui
nextjs-shadcn Next.js App Router + Tailwind + shadcn/ui
react-vite-clerk-shadcn React + Vite + Clerk auth + shadcn/ui
nextjs-clerk Next.js + Clerk auth
nextjs-convexauth-shadcn Next.js + Convex Auth + shadcn/ui
nextjs-lucia-shadcn Next.js + Lucia auth + shadcn/ui
bare Convex backend only, no frontend

If the user has not specified a preference, default to react-vite-shadcn for simple apps or nextjs-shadcn for apps that need SSR or API routes.

You can also use any GitHub repo as a template:

npm create convex@latest my-app -- -t owner/repo
npm create convex@latest my-app -- -t owner/repo#branch

Scaffold the project

Always pass the project name and template flag to avoid interactive prompts:

Read the full file on GitHub · 348 lines

Files

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.

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. 4d ago First seen · 348 lines · 43 tokens per session scan A 1dbb9be931ae

Subscribe to this mod's changes

convex-quickstart is a skill published in the GitHub repository waynesutton/markdown-site (631 stars, last pushed 3mo ago), licensed MIT. It adds 43 tokens to every session and 2,696 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to convex-quickstart, differing in 0 lines, and is treated as a copy.

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