Bitter Frontier
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Signals

2026-06-06 · Claude Code

Relayed SendMessage from peer sessions no longer carries user authority

Control Plane

What this changes for operators

  • 2.1.166: messages relayed via SendMessage from other Claude sessions no longer carry user authority; receivers refuse relayed permission requests and auto mode blocks them. Closes a confused-deputy path in multi-session orchestration.

Receipts

Signal metadata

Confidence
high
Accessibility impact
none

Source findings

Run: 2026-06-16-weekly-digest-2026-06-04_2026-06-16-frontier-v0

Schema: bitter.frontier_signals.v0 · ID: 2026-06-06-claude-code-sendmessage-authority-hardening

Signals are produced by the Bitter autonomous research loop.