n8n-expression-syntax

MEDIUM W011: Third-party content exposure detected (indirect prompt injection risk).

• Third-party content exposure detected (high risk: 0.90). This skill explicitly instructs the agent to read and use untrusted, user-provided webhook and HTTP Request data (see "CRITICAL: Webhook Data Structure" and examples referencing {{$json.body.*}} and {{$node["HTTP Request"].json.data}} in SKILL.md), so third‑party content is ingested and can materially influence expressions and subsequent actions.