ucp

ucp is a skill for Claude Code from vercel-labs/agentic-commerce-skills. It costs 43 tokens per session (18,858 once invoked), scanned A, original, no licence file.

An implementation assistant for the Universal Commerce Protocol (UCP), a standard for connecting ecommerce systems and services.

In plain words
What is it for?
Use it to plan, implement, test, and validate UCP support in Next.js ecommerce codebases.
Why use it?
It helps developers understand and add UCP support to an existing Next.js online store, including checks that the implementation works.

Skill for Claude Code ✓ vendor

Written for Claude Code: user-invocable in frontmatter.

Good fit Use it to plan, implement, test, and validate UCP support in Next.js ecommerce codebases.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/vercel-labs/agentic-commerce-skills/ucp
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 vercel-labs/agentic-commerce-skills --skill ucp
Clone the repo
git clone --depth 1 https://github.com/vercel-labs/agentic-commerce-skills

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.

agentmods badge for ucp

README.md
[![agentmods](https://agentmods.dev/badge/skills/vercel-labs/agentic-commerce-skills/ucp/github.svg)](https://agentmods.dev/skills/vercel-labs/agentic-commerce-skills/ucp)
Your own site
<a href="https://agentmods.dev/skills/vercel-labs/agentic-commerce-skills/ucp"><img src="https://agentmods.dev/badge/skills/vercel-labs/agentic-commerce-skills/ucp/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 ucp

Your own site · 80×15
<a href="https://agentmods.dev/skills/vercel-labs/agentic-commerce-skills/ucp"><img src="https://agentmods.dev/badge/skills/vercel-labs/agentic-commerce-skills/ucp.svg" alt="Reviewed on agentmods" width="80" 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 18,858 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. Third-party audits
  • Socket pass 18 Mar 2026
  • Snyk warn 15 Feb 2026
How audits are shown
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00043 $0.18858
Opus 5 $0.00022 $0.09429
Sonnet 5 $0.00009 $0.03772
Haiku 4.5 $0.00004 $0.01886

Measured 9d ago against content hash c7cc2e016450, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

ucp 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 9d 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.

Makes network callslowCapability

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

const response = await fetch(platformProfileUrl, {
ucp/SKILL.md · 2,923 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 9d ago First seen · 2,923 lines · 43 tokens per session scan A c7cc2e016450

Subscribe to this mod's changes

ucp is a skill published in the GitHub repository vercel-labs/agentic-commerce-skills (13 stars, last pushed 7mo ago), with no licence file. It adds 43 tokens to every session and 18,858 once invoked, about $0.0002 per session on Opus 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 2026-08-30.

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