completions/zsh/_switchdocs completes the subcommands and, for `show` and `complete`, the reference argument by handing the current word to `switchdocs complete` and feeding the full reference strings to compadd (empty suffix, so dotted/slashed refs can be drilled into). Because it reuses the command's own resolver, completion covers Stdlib-open bare names, package-qualified /pkg/... paths, kind tags and section labels for free. Installed to <prefix>/share/zsh/site-functions via a dune install stanza. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>