Add "Hookable Mail" section to all role templates explaining how mail beads
can be hooked for ad-hoc instruction handoff. Key documentation points:
- GUPP applies to hooked mail: read and execute instructions
- Two use cases: hook existing mail, create+hook via gt handoff
- Role-specific examples for each agent type
Templates updated:
- boot.md.tmpl
- crew.md.tmpl
- deacon.md.tmpl
- mayor.md.tmpl
- polecat.md.tmpl
- refinery.md.tmpl
- witness.md.tmpl
Also updated prime.go fallback output functions to include hookable mail
reference for when templates fail to render.
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>