A _meta key is [<prefix>]<name>. The optional <prefix> is a series of
dot-separated labels followed by a /. Each label MUST start with a letter
and end with a letter or digit (interior may contain hyphens). Unless empty,
the <name> MUST start and end with an alphanumeric character; the interior
may also contain -, _, and ..
Prefixes whose second label is modelcontextprotocol or mcp are reserved
for MCP use (see isReservedMetaPrefix).
A _meta key is [<prefix>]<name>. The optional <prefix> is a series of dot-separated labels followed by a /. Each label MUST start with a letter and end with a letter or digit (interior may contain hyphens). Unless empty, the <name> MUST start and end with an alphanumeric character; the interior may also contain -, _, and ..
Prefixes whose second label is modelcontextprotocol or mcp are reserved for MCP use (see isReservedMetaPrefix).