Source Intelligence

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.

All of v2.1.246 Home All releases olderv2.1.245 v2.1.247newer
Claude Code v2.1.246

Bundled Cowork plugin-authoring and data-viz skills dropped

You'll notice
Useful2 Signal3
Skills

Several bundled skills for plugin authoring, MCP discovery and chart palettes no longer ship with the CLI.

What

A block of embedded skill content no longer ships with the CLI: the Cowork plugin authoring guide with its packaging steps, the component-schema and example-plugin references, the MCP discovery reference covering registry search and connector suggestions, the JavaScript and Python chart-palette validators, and the data-visualisation anti-patterns document.

Details
  • The marker strings from that content appear eight times in v2.1.245 and not at all in v2.1.246.
Evidence

Normal-vision floor

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

See this entry in the whole of v2.1.246 →