# Phase 67 Summary

Status: implemented on `main`

## Goal

Turn the compiled source catalog into bounded queryable reuse surfaces instead
of leaving source intelligence as static counts.

## What Landed

- new source catalog commands:
  - `aitp trace-source-citations --canonical-source-id <id>`
  - `aitp compile-source-family --source-type <type>`
- `source_catalog.py` now materializes:
  - bounded one-hop citation traversal reports
  - source-family reuse reports
- traversal artifacts now land under:
  - `source-layer/compiled/citation_traversals/`
- source-family artifacts now land under:
  - `source-layer/compiled/source_families/`
- the traversal surface exposes:
  - seed source identity
  - outgoing linked canonical sources
  - incoming linked canonical sources
  - related topics touched by the bounded traversal
- the family surface exposes:
  - most reused sources for one source type
  - multi-topic reuse counts
  - topic spread for that family

## Outcome

Phase `67` is complete.
The next active milestone step is Phase `68`
`source-fidelity-ranking-and-runtime-read-surfaces`.
