CLAIM-2026-10-09-04
onFailure: "block" is an added, per-hook option rather than a changed default, so the fail-open behaviour remains the default for hooks that do not set it.
Why it matters
Carries the 2026-10-09-the-hook-that-let-it-through edition's argument about a control plane that defaults to permissive.
Sources
- anthropic2026claude