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 v2.1.224 Home All releases olderv2.1.223 v2.1.225newer

Read-only memory stores are refused up front

You'll notice
Useful3 Signal2
Memory

Saving to a read-only memory store now fails immediately and lists stores you can write to.

What

Saving to a memory store that is read-only in the current session now fails immediately with the reason read_only and a list of the stores you can write to, instead of appearing to succeed and not persisting.

Details
  • The system prompt describing the memory index now names the store that owns each entry and marks read-only indexes.
  • Only reached when connected memory stores are in play; which flag enables those is not settled by anything in this build.
Evidence

is read-only in this session; changes will not persist.

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

See this entry in the whole of v2.1.224 →