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 v2.1.246 Home All releases olderv2.1.245 v2.1.247newer
Claude Code v2.1.246

A third file-sync transfer path, "direct", is built on both sides but unreachable

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Useful2 Signal0
File Sync

File sync gained a third "direct" transfer path through a file store, but it never runs.

Both halves of a direct file transfer path are built, but the client driving it defaults to null and nothing supplies one.

What

File syncing gained a third way to move file contents, called direct, which uploads and downloads through a file store endpoint instead of inline. Both the sending and receiving halves exist, with size and deadline options, but the client that would drive it defaults to null and nothing in this build supplies one, so the path never runs.

Details
  • Tuning options exist as directMinBytes, directInboundMaxBytes and directDeadlineMs.
  • Even with a client supplied, the path only activates if the server answers that it offers the lane.
  • The record of how each file was transferred changed from a fixed two-value choice to a free string of up to 32 characters; anything unrecognised becomes "unknown", and a record marked "unknown" is refused on write.
  • Three new server refusal codes accompany it: synced_file_direct_upload_unavailable, synced_file_direct_download_unavailable and synced_file_lane_denied.
Evidence

synced_file_direct_upload_unavailable

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

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

See this entry in the whole of v2.1.246 →