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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
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/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
npx claudepluginhub jeremylongshore/claude-code-plugins-plus-skills --plugin guidewire-packTriages Guidewire production incidents: API errors via OAuth/API roles, batch log reviews, JVM/query performance checks in GCC; guides mitigation, recovery, escalation.
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.
Defines structured error contracts for APIs with machine-readable codes, human-readable messages, and actionable remediation guidance. Use when designing error response shapes or auditing inconsistent error patterns.