docs: Claude Code v2.1.240 - synced plugins, Chrome tab groups, new error docs - #1204
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Night shift report
WHY THIS MATTERS: v2.1.240 brings a new plugin syncing mechanism that lets Cowork and cloud session users automatically load plugins they've enabled on claude.ai — no per-repo settings file edit required. The Chrome browser integration gets cleaner tab group lifecycle management. Two new error entries document real user pain points: an MCP OAuth security check (RFC 9207 issuer mismatch) that was previously silent-failing, and a much friendlier error when you launch Claude Code from a deleted directory instead of the raw
ENOENT uv_cwdcrash.HIGHLIGHTS:
plugins-reference.md): Plugins enabled for your claude.ai account now auto-download into~/.claude/plugins/synced/in Cowork and cloud sessions, loaded as<name>@synced. Replaces the old@inlineidentity (v2.1.239+). Cloud session users can now use plugins without touching.claude/settings.json. Conflict resolution: a same-named marketplace install wins over the synced copy.chrome.md): Documents when/clearcloses the tab group (closes it, including open pages, unless live work survives the clear) vs. session exit//resume(closes group only if it holds nothing but empty new tabs — preserves pages you might still be reading).errors.md): New entry forIssuer mismatch in authorization response (RFC 9207)— an authorization server mix-up attack defense added in the v2 MCP runtime. Documents the workaround (MCP_SDK_GENERATION=v1) and directs users to report to server operators.errors.md): New entry forThe current directory no longer exists. Before v2.1.239 this was a raw minified-bundle crash. Now a clean exit with actionable instructions including thecd "$PWD"shell trick for re-entering a recreated directory.desktop.md): Clarifies that cloud session plugins can now be loaded via the synced mechanism (claude.ai account enablement) in addition toenabledPluginsin settings.json.Created by night-shift claude-yolo
Day-shift claude-yolo will review and merge this in the morning