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Sweep 22 Sep 2026 · 17:19Z Build v2.1.280 501 read Stable v2.1.267 Latest v2.1.280 Next v2.1.280 Feeds RSS JSON llms.txt Unofficial
Claude Code v2.1.269 ·

Bridged/child-session tool diffs gated behind tengu_bridge_child_tool_diff (default off)

New tengu_bridge_child_tool_diff setting controls whether child-session file edits are shown as diffs to a parent session

TierNothing to try yethow much it should matter to you
Useful3my rating, 1 to 5
Signal3worth watching, 1 to 5
AreaSessionswhat it touches
KindIn Developmentin v2.1.269,
Nothing to try yet Notable

New tengu_bridge_child_tool_diff setting controls whether child-session file edits are shown as diffs to a parent session

What

Two new functions decide whether a computed, git-style diff (a summary of changed lines) is attached to a write-tool result for background or child sessions. One function enables this either when the CLAUDE_CODE_REMOTE environment variable is set, or when an internal bridge/child check is combined with a setting called tengu_bridge_child_tool_diff. The other function caps the diff size to 65536 bytes unless CLAUDE_CODE_REMOTE is set. When active, it logs a tengu_tool_use_diff_computed event.

Why

Where enabled, this lets a coordinating parent session see a child agent's file edits as a readable diff instead of just the final file content, making it easier to review what a subagent actually changed.

Read from
Names in the bundletengu_bridge_child_tool_diffCLAUDE_CODE_REMOTE
Feature flag
tengu_bridge_child_tool_diff 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 v2.1.269: off

Read once, for one account on one subscription tier, against v2.1.269. It isn't a statement about your account. What a flag value here can and cannot tell you

What the documentation says
Since it was published

The entry above is what we published on the day. These lines were added later, as Anthropic's own pages caught up, and they sit beside the original rather than replacing it.

Added since A small documentation edit on Configure cloud environments touched a line naming CLAUDE_CODE_REMOTE after this was published. * **No cloud-only scoping**: hooks run in both local and cloud sessions. To skip local execution, exit early unless the `CLAUDE_CODE_REMOTE` environment variable is `true`, the way the [dependency install script](#install-dependencies-with… cloud-environments see the edit
How sure we are
Two sources agreeTwo things we can check say the same as this entry.
Anthropic's documentation agreesA small documentation edit on Configure cloud environments touched a line naming CLAUDE_CODE_REMOTE after this was published.
The name it cites is new in this buildNew in this build: tengu_bridge_child_tool_diff

See this entry in the whole of v2.1.269 →

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