6683da5 dropped allowed-tools on the premise that the list blocked
spawning. The repo's own docs describe the field as pre-approval, so the
list was never the cause and dropping it widened the tool surface for
nothing. Restore the list and keep the parallel fan-out in steps 4-5.
The spawn tool is not added: its name is sourced for Claude Code
(Agent) but not for Copilot or Codex, so spawns prompt rather than
being pre-approved.
ADR-0027 still asserts the dropped-list premise and is corrected
separately.
Refs #116
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EGHFJextYtVQseaHPDDhxB