How do I install the Ucp Conformance skill?

Run npx skillmds@latest add orcaqubits/ucp-conformance in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Ucp Conformance safe to use?

This skill has not completed SkillMD's automated safety review yet. Capability flags: makes network calls, reads secrets. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Ucp Conformance?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Ucp Conformance free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Ucp Conformance?

OrcaQubits (@orcaqubits) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Ucp Conformance by orcaqubits — Agent Skill

Name: Ucp Conformance
Rating: 4.2 (5 reviews)
Author: OrcaQubits

Ucp Conformance

Run and write UCP conformance tests — validate a UCP implementation against the official test suite covering checkout lifecycle, orders, fulfillment, payments, idempotency, webhooks, and security. Use when testing or validating a UCP implementation.

OrcaQubits Updated Sep 10, 2026

File contents

UCP Conformance Testing

Before running tests

Fetch the latest test suite: Web-search github Universal-Commerce-Protocol conformance and fetch the README for current setup instructions, test data format, and CLI flags.

Repository: https://github.com/Universal-Commerce-Protocol/conformance

Conceptual Architecture

What the Conformance Suite Tests

The official suite contains ~13 test files covering:

Test File	What It Validates
Checkout lifecycle	Full create → update → complete → verify flow
Order management	Order creation, status transitions, data integrity
Fulfillment	Shipping/pickup methods, group selection, option validation
Card credentials	Payment credential format, tokenization
Webhooks	Delivery, retry, signature verification
Idempotency	Duplicate request handling, cache behavior
Invalid input	Error responses for malformed requests
Protocol compliance	Headers, TLS, version negotiation
Data validation	Schema compliance, required fields, type correctness
Service bindings	REST/MCP/A2A transport correctness
Business logic	Totals calculation, tax, discount application
AP2 integration	Mandate generation, signing, verification
Security (simulation URLs)	URL validation, injection prevention

How to Run

Clone the conformance repo
Install dependencies with uv sync
Start your UCP server locally
Run tests pointing at your server:

uv run checkout_lifecycle_test.py \
  --server_url=http://localhost:8182 \
  --simulation_secret=your-secret \
  --conformance_input=test_data/your_store/conformance_input.json

Test Data

Tests require a conformance_input.json file that describes your store's products, prices, and expected behaviors. Check the sample test data in the repo for the format.

Writing Custom Conformance Tests

When extending UCP with custom capabilities:

Use the same test patterns as the official suite
Test capability negotiation (extension present/absent)
Test schema validation against your custom schemas
Test error cases specific to your extension
Test idempotency for all mutating operations

Integration with CI/CD

Run conformance tests as part of your CI pipeline
Use the --server_url flag to point at staging environments
Track test pass rates as a quality gate for deployments

Always fetch the latest test suite before running — new tests are added as the spec evolves.

---name: ucp-conformancedescription: Run and write UCP conformance tests — validate a UCP implementation against the official test suite covering checkout lifecycle, orders, fulfillment, payments, idempotency, webhooks, and security. Use when testing or validating a UCP implementation.---# UCP Conformance Testing## Before running tests**Fetch the latest test suite**: Web-search `github Universal-Commerce-Protocol conformance` and fetch the README for current setup instructions, test data format, and CLI flags.Repository: https://github.com/Universal-Commerce-Protocol/conformance## Conceptual Architecture### What the Conformance Suite TestsThe official suite contains ~13 test files covering:| Test File | What It Validates ||-----------|-------------------|| Checkout lifecycle | Full create → update → complete → verify flow || Order management | Order creation, status transitions, data integrity || Fulfillment | Shipping/pickup methods, group selection, option validation || Card credentials | Payment credential format, tokenization || Webhooks | Delivery, retry, signature verification || Idempotency | Duplicate request handling, cache behavior || Invalid input | Error responses for malformed requests || Protocol compliance | Headers, TLS, version negotiation || Data validation | Schema compliance, required fields, type correctness || Service bindings | REST/MCP/A2A transport correctness || Business logic | Totals calculation, tax, discount application || AP2 integration | Mandate generation, signing, verification || Security (simulation URLs) | URL validation, injection prevention |### How to Run1. Clone the conformance repo2. Install dependencies with `uv sync`3. Start your UCP server locally4. Run tests pointing at your server:```bashuv run checkout_lifecycle_test.py \ --server_url=http://localhost:8182 \ --simulation_secret=your-secret \ --conformance_input=test_data/your_store/conformance_input.json```### Test DataTests require a `conformance_input.json` file that describes your store's products, prices, and expected behaviors. Check the sample test data in the repo for the format.### Writing Custom Conformance TestsWhen extending UCP with custom capabilities:1. Use the same test patterns as the official suite2. Test capability negotiation (extension present/absent)3. Test schema validation against your custom schemas4. Test error cases specific to your extension5. Test idempotency for all mutating operations### Integration with CI/CD- Run conformance tests as part of your CI pipeline- Use the `--server_url` flag to point at staging environments- Track test pass rates as a quality gate for deploymentsAlways fetch the latest test suite before running — new tests are added as the spec evolves.

Frequently asked questions