Unclear What the two gating checks require, and whether they are met for any current users, is not stated.
What
A new local slash command called output-style was added, described as letting you "List output styles or switch to one." It is currently hidden from the command list unless certain internal conditions are met.
Why
Output styles change how Claude Code's responses are formatted or presented; this command would give a direct way to see or switch between them from the command line, but since it is gated behind internal checks, most users won't see it yet.
Names in the bundle/output-style
The entry above is what we published on the day. These lines were added later, as Anthropic's own pages caught up, and they sit beside the original rather than replacing it.
Confirmed since
Anthropic's documentation has since written up /output-style, on Error reference.
You ran [`/output-style`](/docs/en/output-styles#change-your-output-style) from the mobile app or web via [Remote Control](/docs/en/remote-control), or the command arrived in a message relayed into the session. Because such a turn may not …errors see the edit
Added since
A small documentation edit on Modifying system prompts touched a line naming /output-style after this was published.
* **CLI**: run `/output-style <style>`, for example `/output-style concise`, or run `/config` and select one. The `/output-style` command requires Claude Code v2.1.269 or later.agent-sdk/modifying-system-prompts see the edit
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubt
What the two gating checks require, and whether they are met for any current users, is not stated.
Anthropic's documentation agrees
A small documentation edit on Modifying system prompts touched a line naming /output-style after this was published.
Anthropic's release notes agree
Added /output-style [name] to list and switch output styles, including over Remote Control and in cloud and other headless sessions