What probably matters to youSection of the release
The reworded intro sits behind CLAUDE_CODE_INTRO_FRAME or a server flag that falls back to off.
What
An experiment replaces the system prompt's opening line, in both the standard and the lean variant, with "You are an agent working with the user toward their goals, using your own judgment along the way." in place of "You are an interactive agent that helps users with software engineering tasks." It is controlled by the CLAUDE_CODE_INTRO_FRAME environment variable, and otherwise by a server-side flag named tengu_ochre_wren that falls back to off.
Details
The result is cached for the process and logged as intro_frame_arm_active source= with either env or growthbook, so you can tell which decided it.
Both the flag and the new sentence are absent from v2.1.238.
Evidence
You are an agent working with the user toward their goals, using your own judgment along the way.
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
The flag server returned off for the account this site reads and for the anonymous baseline. A reading of off cannot rule out a rollout these two readings sit outside of.
This account: off · anonymous baseline: off · compiled default in v2.1.239: off
Flag reading movedThe flag server now returns on for tengu_ochre_wren, read as this account.A reading is one sample. Claude Code evaluates its flags remotely, so no client sees the targeting rule behind a value and this says nothing about your account.
Flag reading movedThe flag server now returns off for tengu_ochre_wren, read as this account.A reading is one sample. Claude Code evaluates its flags remotely, so no client sees the targeting rule behind a value and this says nothing about your account.
Flag reading movedThe flag server now returns on for tengu_ochre_wren, read as this account.A reading is one sample. Claude Code evaluates its flags remotely, so no client sees the targeting rule behind a value and this says nothing about your account.
Flag reading movedThe flag server now returns off for tengu_ochre_wren, read as this account.A reading is one sample. Claude Code evaluates its flags remotely, so no client sees the targeting rule behind a value and this says nothing about your account.
Flag reading movedThe flag server now returns nothing at all, having stopped carrying it for tengu_ochre_wren, read as this account.A reading is one sample. Claude Code evaluates its flags remotely, so no client sees the targeting rule behind a value and this says nothing about your account.
