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.
Added telemetry for tool_use/tool_result mismatch errors to help engineers debug message normalization issues. This internal tracking does not affect user experience but helps improve reliability.
Evidence
New Uw6() diagnostic function at line 203566 in pretty-v2.0.24.js
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
