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From guidewire-pack
Diagnoses and fixes Guidewire Cloud API errors like 400/401/403/404/409/422 and Gosu exceptions including ClassNotFoundException, NPE, ValidationException.
How this skill is triggered — by the user, by Claude, or both
Slash command
/guidewire-pack:guidewire-common-errorsThis skill is limited to the following tools:
The summary Claude sees in its skill listing — used to decide when to auto-load this skill
Fix 400 (validation), 401 (OAuth token expired), 403 (missing API role), 404 (wrong endpoint path), 409 (stale checksum - re-GET and retry), 422 (business rule violation - read userMessage). Gosu errors: ClassNotFoundException (wrong module), NPE (null entity reference), ValidationException (missing required fields).
Fix 400 (validation), 401 (OAuth token expired), 403 (missing API role), 404 (wrong endpoint path), 409 (stale checksum - re-GET and retry), 422 (business rule violation - read userMessage). Gosu errors: ClassNotFoundException (wrong module), NPE (null entity reference), ValidationException (missing required fields).
For detailed implementation, see: implementation guide
4plugins reuse this skill
First indexed Jul 10, 2026
npx claudepluginhub luxdevnet/claude-plus-lux --plugin guidewire-packBuilds a production-grade Guidewire Cloud API client handling 409 checksum conflicts, 429 rate limiting, offsetToken pagination, retry-safe POSTs, and structured error responses.
Guides HTTP status code selection (2xx-5xx) and API error response design with envelopes, validation errors, per-field messages, RFC 9457, and Stripe/GitHub/Twilio patterns.
Guides error mapping for API integration tasks including third-party APIs, webhooks, SDK generation, and OAuth patterns.