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sumup-debug

Skill

Troubleshoot common SumUp integration failures. Use when SumUp HMAC signature checks fail, checkout sessions expire, scopes aren't activated, widget mount is blocked, affiliate keys don't match, or `checkout_reference` collides.

0Debugging

Install

git clone https://github.com/sumup/sumup-skills.git ~/.claude/skills/sumup-debug

What is sumup-debug?

Troubleshoot common SumUp integration failures. Use when SumUp HMAC signature checks fail, checkout sessions expire, scopes aren't activated, widget mount is blocked, affiliate keys don't match, or `checkout_reference` collides.

What this can do

Capabilities declared in this component's own frontmatter — not inferred.

Inherit all session tools

Declares no tool restrictions — inherits every session tool

~57 tokens of context used while enabled, before you invoke anything

Documentation

README · ~3 min read

SumUp Troubleshooting Playbook

Use this skill for diagnosis and remediation of failing SumUp integrations.

Fast Triage Matrix

  1. Classify symptom:
    • Auth/signature error
    • Checkout creation/processing error
    • Widget/client-side mount or flow error
    • Async mismatch (success in UI, failure in backend state)
  2. Capture evidence:
    • request/response payloads (sanitized), HTTP status, error code/message

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