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 v2.1.128 Home All releases olderv2.1.126 v2.1.129newer

Better Large Input and Media Result Messages

Claude Code now explains size and media limits more directly.

Details
  • Piped stdin that exceeds the size cap tells users to pass large content as a file path.
  • Oversized remote requests tell users to shorten the prompt or send it in parts.
  • Media rejected by the API is replaced with an explicit placeholder instead of failing opaquely.
  • PDF content returned by inner Read calls can be surfaced as document content blocks.
Evidence

User-facing limit messages (search for "piped stdin input exceeds", "request exceeds", "(media removed — rejected by API)", and "PDFs returned by inner Read calls")

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

See this entry in the whole of v2.1.128 →