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DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

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Claude Code v2.1.227

Concurrent plugin syncs no longer share a staging directory

You'll notice
Useful3 Signal1
Plugins

Two Claude Code processes syncing plugins at once no longer trample each other's downloads.

What

Plugin and skill sync now stages files in a directory named after the process ID, so two Claude Code processes syncing at once cannot overwrite each other's in-progress downloads.

Details
  • Paths went from <root>/.staging to <root>/.staging/<pid> for both synced plugins and synced skills.
  • Cleanup now tracks a list of stale staging directories left by processes that exited, with dedicated helpers for the plugin and skill staging roots.
Evidence

".staging"

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.227 →