Add WritBase to Runtime > Tool

[RusDyn]

Summary

Add WritBase to the Runtime > Tool section.

WritBase is an MCP-native task management system for AI agent fleets. It provides:

• Persistent task registry backed by Postgres (Supabase)
• Scoped permissions with per-agent key access control
• Inter-agent delegation with assignment tracking and delegation depth limits
• Full provenance via append-only event log
• MCP-first access — 11 tools for worker and manager agents
• Apache 2.0 licensed, self-hostable via npx writbase init

Repository: https://github.com/Writbase/writbase