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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
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Claude Code v2.1.305 ·

Plugin commands now carry the plugin's identity, and a new check can refuse plugins

Commands a plugin runs now carry that plugin's storage identity, and a new check can refuse a plugin with manifest_containment_refused

Under the hood Internal Changes
JSON All of v2.1.305
Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
PluginsArea: what it touches
Internal ChangesKind: in v2.1.305,
Internal ChangesSection of the release

Unclear It is not clear what the new manifest check looks for, so which plugins it refuses is unknown.

What

Plugins are add-on packages for Claude Code. When a plugin runs a program, Claude Code now passes along the plugin's own storage identity, not only the folder and a cancel signal as before.

There is also a new error code, manifest_containment_refused, for a check on a plugin's manifest, the file that describes the plugin.

Why

Programs a plugin starts are now tied to that plugin, and the new check means some plugins may be refused.

How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtIt is not clear what the new manifest check looks for, so which plugins it refuses is unknown.

See this entry in the whole of v2.1.305 →

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