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 v2.1.223 Home All releases olderv2.1.222 v2.1.224newer

New "unclassified" message-origin kind for injected turns

Under the hood
Useful2 Signal0
Elsewhere

Injected turns with no traceable source are now explicitly tagged and framed as non-user content.

What

Injected turns whose ingress classification finds no provenance now carry an explicit origin kind instead of an undefined one, and their content is framed to the model as coming from a non-user source.

Details
  • The SDK origin union gains w.literal("unclassified"), documented as "Injected turn whose ingress classification found no provenance. Framed by the harness as a non-user source in both drains; never presumed human, never host-replayed."
  • Synthetic turns whose inbound classification produced nothing are tagged { kind: "unclassified" } rather than left undefined.
  • Such content is prefixed with the existing non-user banner text before it reaches the model.
  • The banner literal was hoisted into a shared constant and is only prepended if not already present.
Evidence

Injected turn whose ingress classification found no provenance.

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

See this entry in the whole of v2.1.223 →