paypal-integration

Integrate PayPal payment processing with support for express checkout, subscriptions, and refund management. Use when implementing PayPal payments, processing online transactions, or building e-commerce checkout flows.

Install with Tessl CLI

npx tessl i github:wshobson/agents --skill paypal-integration

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Review — 86%

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Validation — 11 / 11 Passed

Validation for skill structure

SKILL.md

Review

Evals

Evaluation results

100%

10%

PayPal Payment Backend for Online Shop

Express Checkout and IPN Handling

Criteria

Without context

With context

v2 order endpoint

100%

CAPTURE intent

100%

Explicit currency_code

100%

v2 capture endpoint

100%

OAuth token acquisition

100%

IPN cmd parameter

100%

IPN VERIFIED check

100%

IPN URL

100%

All payment statuses handled

100%

Duplicate transaction guard

100%

Custom exception class

100%

Without context: $0.4109 · 4m 34s · 15 turns · 113 in / 7,503 out tokens

With context: $0.6007 · 7m 53s · 21 turns · 762 in / 6,858 out tokens

100%

Recurring Billing Integration for SaaS Platform

Subscription Billing Setup

Criteria

Without context

With context

Billing plans endpoint

100%

tenure_type field

100%

sequence field

100%

total_cycles zero

100%

auto_bill_outstanding

100%

setup_fee_failure_action

100%

payment_failure_threshold

100%

Subscriptions endpoint

100%

application_context URLs

100%

Approval URL extraction

100%

Pricing currency_code

100%

OAuth authentication

100%

Without context: $0.2726 · 6m 31s · 11 turns · 89 in / 4,271 out tokens

With context: $0.4983 · 3m 58s · 18 turns · 401 in / 5,936 out tokens

100%

Customer Refund Processing Tool

Refund Workflow and Error Handling

Criteria

Without context

With context

Refund endpoint

100%

Partial refund amount

100%

Full refund omits amount

100%

note_to_payer field

100%

Custom PayPalError class

100%

RequestException handling

100%

Environment-configurable URL

100%

Refund currency_code

100%

Transaction logging

100%

OAuth token used

100%

get_refund_details function

100%

Without context: $0.4438 · 7m 49s · 19 turns · 145 in / 6,599 out tokens

With context: $0.4361 · 3m 59s · 16 turns · 407 in / 5,788 out tokens

Evaluated: about 19 hours ago
Agent: Claude Code

Table of Contents

PayPal Payment Backend for Online Shop Recurring Billing Integration for SaaS Platform Customer Refund Processing Tool

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