fork-system-builder

name	fork-system-builder
description	Use when working with the skill fork system

Fork System Builder

Fork Creation

Creates new Skill with status=draft, links via forks table.

fork = Fork(
    original_skill_id=original.id,
    forked_skill_id=new_skill.id,
    forked_by=user["user_id"],
    upstream_version_at_fork=original.current_version,
)

Upstream Tracking

upstream_version_at_fork enables diff detection against newer upstream versions.

Denormalized Counter

original.fork_count += 1 on fork creation.

References

• Social router: apps/api/skillhub/routers/social.py
• Fork model: libs/db/skillhub_db/models/social.py
• MCP fork tool: apps/mcp-server/skillhub_mcp/tools/fork.py