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Sweep 10 Nov 2026 · 02:18Z Build v2.1.322 539 read Stable v2.1.311 Latest v2.1.322 Next v2.1.322 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.280 ·

Skill/agent schema gains from_plugin field

An internal schema for skills and agents now has an optional from_plugin field

Under the hood No documentation found Internal Changes
JSON All of v2.1.280
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
SkillsArea: what it touches
Internal ChangesKind: in v2.1.280,
Internal ChangesSection of the release

Unclear It is unclear what from_plugin is used for or what user-visible behavior, if any, it enables.

What

A schema Claude Code uses internally to describe skill- and agent-like entities (packaged instructions and subagents that can be loaded and run) now includes an optional from_plugin field, alongside the existing read, color, and summary fields.

Why

The finding does not say what this field is used for, so it is not clear yet what it changes for someone using skills, agents, or plugins.

Read from
Names in the bundlefrom_plugin
Since it was published

The entry above is what we published on the day. These lines were added later, as Anthropic's own pages caught up, and they sit beside the original rather than replacing it.

Confirmed since Anthropic's documentation has since written up from_plugin, on Compliance API. - `from_plugin_version_id: optional string or null` api/compliance see the edit
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 unclear what from_plugin is used for or what user-visible behavior, if any, it enables.
Anthropic's documentation agreesAnthropic's documentation has since written up from_plugin, on Compliance API.

See this entry in the whole of v2.1.280 →

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