X_DOC_COMMAND_UNKNOWN
Means
a page in wiki/ or docs/ hands the reader an x invocation this build cannot run
Typical cause
the command, its subcommand, its positional or one of its flags does not exist — a renamed flag (--from for --from-step), a plural that moved (x entity for x entities), or a command that never shipped
Fix
bun run scripts/doc-commands.ts --json; x help --json lists every command, subcommand and flag