Source Intelligence
Follow Discord

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 v2.1.219 Home All releases ←olderv2.1.218 v2.1.220newer→
Claude Code v2.1.219

Tool-result eviction no longer double-counts already-seen results

You'll notice
Useful3 Signal0
Compaction

Duplicate tool results no longer inflate the size math that decides what gets dropped.

What

The size accounting that decides which tool results to evict no longer inflates its running total when the same result appears more than once.

Details
  • In the previously-seen-results total, ids already marked seen contribute zero.
  • Budget comparisons therefore reflect distinct results rather than repeats.
Evidence

toolUseId

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

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

See this entry in the whole of v2.1.219 →