When gt doctor --fix detects stale Claude settings at town root, it was
automatically killing ALL Gas Town sessions (gt-* and hq-*). This is too
disruptive because:
1. Deacon runs gt doctor automatically, creating a restart loop
2. Active crew/polecat work could be lost mid-task
3. Settings are only read at startup, so running agents already have
the config loaded in memory
Instead, warn the user and tell them to restart agents manually:
"Town-root settings were moved. Restart agents to pick up new config:
gt up --restart"
Addresses PR #239 feedback.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
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