X_DOC_FIX_UNRUNNABLE
Means
a Fix cell of this page cannot be run as written
Typical cause
the cell cites an x command, subcommand or flag this build does not ship, passes a bare word its command's usage line has no slot for (x routes list --json), or it says "check"/"see the docs" and names no command, call or file. The page an agent is sent to on an error answering with a second error is axiom 4 broken at the one point it is needed
Fix
bun run scripts/doc-fixes.ts --json — each finding names the code, the line and the exact reason