Router

The router is the workflow control plane. It runs once per stage transition. It does not implement any stage logic itself; it only moves state forward and loads the next stage skill.

Contract

Input:

• state.md (workflow state with current_stage set)
• The previous skill's ## Hand-off (workflow mode) block
• STELOW_WORKFLOW=1 + STELOW_STATE=<path-to-state.md> markers

Output:

• state.md advanced (via scripts/stelow advance <next-candidate>)
• The next stage's SKILL.md loaded for the next agent turn
• A new ## Hand-off (router) block appended to state.md