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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.

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Claude Code v2.1.219

Tools can opt out of the aggregate tool-result budget

Under the hood
Useful2 Signal0
Elsewhere

Individual tools can now skip the shared output size budget and just use the hard ceiling.

What

A tool definition can now declare that its output is not subject to the shared tool-result budget lookup.

Details
  • The tool-result size limiter takes a new fourth argument; when set it clamps straight to the ceiling instead of consulting the per-tool remote-config override.
  • The caller passes e.skipAggregateToolResultBudget === !0 from the tool definition, so the behaviour is gated per tool.
Evidence

skipAggregateToolResultBudget

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

See this entry in the whole of v2.1.219 →