Act on this, mostly facts

Unattended Claude Code runs may stall after October 16 update

What to do

Set a permission mode for claude -p runs, and check hooks, which are capped at 12 per event.

Why

Sessions without a permission mode now start in default mode under third-party platforms, disabled telemetry or fresh installs.

Read the source at note.com

What the research found

Claude Code 2.1.302 (Oct 16 2026) changes unattended claude -p runs: sessions without a permission mode start in default mode under third-party platforms, disabled telemetry, or fresh installs, so they can stall; hooks capped at 12 concurrent per event; standalone Claude Design ends by Dec 14 2026.

Claims and how well the evidence supports them

claude -p sessions without a permission mode start in default mode under third-party platforms, disabled telemetry, or fresh install 98%
Hooks are capped at 12 concurrent per event 98%
Standalone Claude Design ends by December 14 2026 97%
Fork subagents are enabled by default in claude -p 98%

Evidence

note.com https://note.com/claudecodestudio/n/na042b1299126?hl=en
code.claude.com https://code.claude.com/docs/en/changelog#2-1-302

Actionability rated high.