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 v2.1.227 Home All releases olderv2.1.226 v2.1.228newer
Claude Code v2.1.227

SendFile tool moved from hard-off to a feature flag

Not switched on
Useful3 Signal4
Cross-Session Messaging Notable

Sending files to another Claude session went from hard-off to a flag the server can flip.

The SendFile tool now sits behind a server flag that falls back to off, so it can be enabled remotely.

Feature flag
tengu_send_file Not enough to say

Nothing here resolved what this flag was doing on this version, so nothing here should be read as on or off.

This account: no value returned · anonymous baseline: no value returned · compiled default in v2.1.227: on

These values were read against a different version of Claude Code, so treat them as the nearest reading available instead of one taken on this release.

Read once, for one account on one subscription tier, against v2.1.227. It isn't a statement about your account. What a flag value here can and cannot tell you

What

The tool for sending files to another Claude Code session was previously disabled unconditionally. It is now behind the server flag tengu_send_file, which falls back to off when the server sends no value, so the tool can be switched on remotely without a new build.

Evidence

send files to another Claude Code session

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 v2.1.227 →