Sweep 19 Sep 2026 · 02:36Z Build v2.1.278 500 read Stable v2.1.267 Latest v2.1.278 Next v2.1.278 Feeds RSS JSON llms.txt Unofficial
Claude Code v2.1.274 ·

Files can now be shared into a project's Library folder

Claude can now send files into a project's shared Library folder in bridge sessions, backed by a multi-host projectFilesDoor lookup

TierNothing to try yethow much it should matter to you
Useful4my rating, 1 to 5
Signal4worth watching, 1 to 5
AreaFile Sharingwhat it touches
KindIn Developmentin v2.1.274,
Group of 2 Nothing to try yet

Claude can now send files into a project's shared Library folder in bridge sessions, backed by a multi-host projectFilesDoor lookup

What

  • The SendUserFile tool can now place files in a project's shared Library folder (the "project files door"), in addition to its previous destinations. Claude must declare attached_outputs: [{ kind: 'file', ref: <path> }] for delivered files to show up on the thread. This destination is gated to bridge child sessions.
  • SendUserFile also gained a checkPermissions step before it runs, on top of the existing validateInput step.
  • The projectFilesDoor lookup (which supplies channel id, session id, API base URL, and a bearer-token getter) is now aggregated across every active mount host at session startup, returning the first host that has one, instead of assuming a single host. This matters for bridge/multi-agent sessions where more than one host connection can be live at once.

Why This lets Claude deliver files to a shared project location visible to the whole project, not just the current conversation, and makes that delivery work correctly when a session is bridged across multiple hosts at once.

Read from
Feature flag
tengu_bridge_child_file_upload 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 v2.1.274: 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 v2.1.274. It isn't a statement about your account. What a flag value here can and cannot tell you

How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtWhether this project-Library delivery path is active for any given account is unknown, since nothing has been read yet about the…
The name it cites is new in this buildNew in this build: tengu_bridge_child_file_upload

See this entry in the whole of v2.1.274 →