Home / orcaqubits / agentic-commerce-skills-plugins · GitHub

ap2-dev-patterns SKILL.md skillA

ap2-dev-patterns from orcaqubits/agentic-commerce-skills-plugins is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned

mdr add orcaqubits/agentic-commerce-skills-plugins/ap2-dev-patterns@git:20260914.08f85a3

Pins git:20260914.08f85a3 in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 17 of 17 checks passed
Kind: SKILL.md skill
Repository: orcaqubits/agentic-commerce-skills-plugins
Path: ap2-agentic-payments/skills/ap2-dev-patterns/SKILL.md
Versions recorded: 2
Latest version: git:20260914.08f85a3, committed Sep 14, 2026
First version recorded: Mar 9, 2026
Size: 7,030 bytes
Repository stars: 40
License: MIT

Apply AP2 cross-cutting development patterns — multi-agent payment architecture, UCP integration, x402 crypto payments, testing with mock providers, and production deployment. Use when architecting agentic payment systems or solving cross-cutting payment concerns.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# AP2 Development Patterns

## Before writing code

**Fetch live docs**:
1. Fetch `https://ap2-protocol.org/ap2/specification/` for the latest protocol details
2. Fetch `https://ap2-protocol.org/overview/` for UCP integration patterns
3. Fetch `https://ap2-protocol.org/overview/` for x402 crypto integration
4. Web-search `site:github.com google-agentic-commerce AP2 samples` for reference architectures

## Conceptual Architecture

### Multi-Agent Payment Architecture

The standard AP2 architecture involves four agents communicating via A2A:

```
┌──────────────────────────────────────────────────┐
│                    User                           │
│          (trusted device surface)                 │
└──────────┬───────────────────────────────────────┘
           │ intent + signatures
┌──────────▼───────────────────────────────────────┐
│            Shopping Agent (SA)                     │
│    Orchestrator — coordinates the full flow        │
└──┬──────────────┬────────────────────────────────┘
   │              │
   │ A2A          │ A2A
   │              │
┌──▼──────┐  ┌───▼──────────┐
│ Merchant │  │ Credentials  │
│ Agent    │  │ Provider     │
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add orcaqubits/agentic-commerce-skills-plugins/ap2-dev-patterns@sha256:2bb310aac12abc36

The line at the top of this page pins the label git:20260914.08f85a3, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

[![mdr](https://markdownregistry.com/badge/art_7eeuganpays2h4mk.svg)](https://markdownregistry.com/a/art_7eeuganpays2h4mk)

5 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 2 versions of this file, between Mar 9, 2026 and Sep 14, 2026, about one every 189 days.

version	committed	commit	size	audit
git:20260914.08f85a3 latest	2026-09-14	08f85a3	7,030 B	A	view · diff
git:20260309.786511c	2026-03-09	786511c	7,035 B	A	view

Audit of the latest version

A 17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.

pass: Frontmatter block present
pass: Frontmatter declares a name
pass: Frontmatter declares a description
pass: Size between 200 bytes and 200 KB (7030 bytes)
pass: No zero-width or bidi control characters
pass: No instruction hidden inside an HTML comment
pass: No link to an exfiltration or paste host
pass: No credential-shaped string
pass: No instruction to send local credentials anywhere
pass: No text hidden with inline styles
pass: No prompt-injection phrasing
pass: No curl or wget piped into a shell
pass: No recursive delete of root, home or parent
pass: No instruction to read or print local credentials
pass: No base64 blob over 200 characters
pass: No link to a raw IP address
pass: No script tag

Source

GitHub

orcaqubits/agentic-commerce-skills-plugins · 40 stars · license MIT · pushed 2026-09-14 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_7eeuganpays2h4mk
GET https://markdownregistry.com/api/v1/resolve?ref=orcaqubits/agentic-commerce-skills-plugins/ap2-dev-patterns
GET https://markdownregistry.com/api/v1/blob/2bb310aac12abc36d9d77df7b861cc02f005219423e4bebf16b3ee7ce23f679e

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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