vocapablecc_requirement_invalid
A skill requirement written as text cannot be routed: an unknown skill, a level outside 1–5, a syntax or bracket error, more than 20 terms, more than 10 alternatives, a skill named twice at one level, or an OR nested too deep. reason, position (0-based) and term name the failing term.
Problem shape
Every non-2xx response is an RFC 9457 application/problem+json body. The type URI below is stable and machine-matchable, so branch on the final path segment (the code) and treat the status as redundant confirmation. See the error-handling guide.
{
"type": "https://docs.vocapable.com/errors/cc_requirement_invalid",
"title": "…",
"status": 422,
"detail": "…",
"instance": "/v1/…"
}