/design-sync
A Claude Code slash command, read out of the shipped bundle. No mined inventory carries it: everything below comes from what this site has written about it.
Skill. Convert your repo's React design system and upload it to Claude Design, so designs it produces use your real components. Optionally name the design system, for example /design-sync Acme DS. A first-time sync verifies every component and can take a few hours on a large repo. Available on the Anthropic API. It needs claude.ai, which the CLI doesn't contact on Amazon Bedrock, Google Cloud's Agent Platform, Microsoft Foundry, or Claude Platform on AWS, or through a Claude apps gateway, so the command is unavailable there
Anthropic's own wording. Read off Commands, captured 2026-09-28.
In the changelogs
12Releases whose published page names /design-sync.
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v2.1.317
/design-sync explains when a design system has moved to Claude
New
/design-syncmessages say a design system has moved, or is moving, to Claude, that updates can't be sent there yet, and how to open itfound in this entry's text, named in this entry
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v2.1.311
/design-loginnow says when your authorization code was refusedWhen the browser sign-in for
/design-loginhas its code refused, Claude Code now reports that specific failure and its messagefound in this entry's text, named in this entry
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v2.1.302
Notice that standalone Claude Design closes by December 14, 2026
Claude Code now tells you standalone Claude Design at claude.ai/design closes by December 14, 2026, and that Claude Design now lives in Claude
found in this entry's text
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v2.1.302
Spacing added after the /design-sync access message, and a session label fix
The /design-sync access confirmation gets extra spacing, and sessions started as local_agent are now counted as cowork
found in this entry's text, named in this entry
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v2.1.277
New hidden CLI command: claude design-login --json
New hidden command claude design-login --json backs the /design-login sign-in flow for the VS Code extension
found in this entry's text
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v2.1.277
Plugin install errors now marked as "ours" for downstream handling
Design login now accepts a manually pasted authorization code more flexibly, with clearer failure reasons
found in this entry's text
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v2.1.271
New DesignSync tool for syncing local components with claude.ai/design projects
New DesignSync tool syncs local files with claude.ai/design projects, unlocked via /design-login
named in this entry, found in this entry's text
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v2.1.187
DesignSync — improved messages in non-interactive sessions
found in this entry's text
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v2.1.181
/designCommand — Claude Design Hubfound in this entry's text
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v2.1.169
/design-syncSkill — Sync React Design Systems to Claude Designfound in this entry's text
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v2.1.169
disableBundledSkillsSettingfound in this entry's text
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v2.1.169
Claude Design Contextual Tip [In Development]
found in this entry's text
First cited
2The earliest release whose published evidence quoted /design-sync was v2.1.302, 16 Oct 2026. That is the oldest release this project wrote about it, so it is a floor on the name's age and not the release that introduced it. It is not a presence reading: which builds carried the name is the table below.
Presence across releases
0The miner has never read a build containing this name. It is here because a changelog entry of ours names it, which is evidence that it existed and not evidence of which releases carried it. The inventory starts at v2.1.138 and everything older than that was never mined.
Read out of the published npm bundle release by release, and out of Anthropic's own documentation as this site captured it. Nothing on this page is a description anybody here wrote about what the slash command does. All slash commands.