# Material Routing Log

## 1. Status

```text
status: not-started
blocked_reason: routing requires confirmed topic hierarchy
```

## 2. Routing Contract

Material routing may be many-to-many after topic hierarchy confirmation.

Each routed source block must record:

```text
- block_id
- primary_topic
- secondary_topics
- routing_reason
- confidence
- source_preservation_status
```

## 3. Current Gate

Do not route source blocks until `01-topic-hierarchy-proposal.md` is confirmed by the user.