update-completions

# Update Completions Update `_copilot`, `completions/copilot.fish`, and any affected dynamic Fish helpers from the same live CLI help capture. ## Gather the current CLI surface Capture these commands: ```sh copilot --help copilot help copilot help config copilot help commands copilot help environment copilot help logging copilot help monitoring copilot help permissions copilot help providers copilot app --help copilot completion --help copilot init --help copilot login --help copilot mcp --help copilot mcp add --help copilot mcp get --help copilot mcp list --help copilot mcp remove --help copilot plugin --help copilot plugin install --help copilot plugin list --help copilot plugin marketplace --help copilot plugin marketplace add --help copilot plugin marketplace browse --help copilot plugin marketplace list --help copilot plugin marketplace remove --help copilot plugin marketplace update --help copilot plugin uninstall --help copilot plugin update --help copilot plugins --help copilot skill --help copilot update --help copilot version --help ``` Run help for every subcommand advertised by `copilot plugins --help` and `copilot skill --help`. Run `copilot help <topic>` for any help topics not listed above. Treat the live output as authoritative. ## Update both implementations Compare the captured interface against: - `_copilot` - `completions/copilot.fish` - `functions/__fish_copilot_*.fish` Keep options, aliases, commands, help topics, models, log levels, reasoning efforts, stream modes, plugin commands, login modes, and dynamic argument helpers aligned. For Zsh: - Use `_arguments` specifications. - Prefix repeatable options with `*`. - Use exclusion groups for aliases or mutually exclusive options. - Preserve dynamic model, plugin, and marketplace helpers. - Keep the completion-context guard at the bottom of `_copilot`. For Fish: - Use `-x` for exclusive arguments, `-r` for required arguments, and `-f` when file completion is inappropriate. - Give every completion a `-d` description. - Keep private dynamic helpers under `functions/__fish_copilot_*.fish`. - Update fallback models in `functions/__fish_copilot_models.fish`. Do not introduce a shared completion schema or generator. Each shell should remain idiomatic. ## Verify ```sh zsh -n _copilot copilot.plugin.zsh fish -n completions/copilot.fish fish -n functions/*.fish fish -c 'source completions/copilot.fish complete -C"copilot --mo" complete -C"copilot help " complete -C"copilot mcp " complete -C"copilot plugin marketplace "' ``` Read back every modified file and confirm both shells represent the same live CLI surface.