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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.228 ·

Plugin installs can fail closed on unreadable marketplace sources

Plugin installs can now be blocked outright when a marketplace source can't be read.

You'll notice In Development
JSON All of v2.1.228
You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
PluginsArea: what it touches
In DevelopmentKind: in v2.1.228,
In DevelopmentSection of the release
What

Resolving which marketplace a plugin dependency comes from gained a fail-closed option. When the list of known marketplaces comes back empty, an unresolvable marketplace is treated as blocked rather than quietly allowed, which can turn an install that used to succeed into a policy block.

Details
  • The option is failClosedOnUnknownSource; the block is reported as marketplace-blocked-by-policy.
  • It only applies when managed plugin policy sources are present. Without them the old permissive behaviour stands.
Evidence

failClosedOnUnknownSource

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

See this entry in the whole of v2.1.228 →

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