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 v2.1.172 Home All releases olderv2.1.170 v2.1.173newer
Claude Code v2.1.172

Plugin Disuse Tracking

What

Claude Code now tracks the last time each plugin was used (lastUsedAt and lastUsedNumStartups). This data enables the tip system to surface a warning when a plugin hasn't been used in a while.

Details
  • Tip shown: "You haven't used the [plugin] in a while. It still adds startup and context cost — review it with…"
  • Tracks both calendar days and session count since last use
Evidence

Plugin usage tracking functions (search for "plugin in a while. It still adds startup and context cost")

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

See this entry in the whole of v2.1.172 →