Bills are collected from official legislative systems and Congress.gov where available. The source record matters as much as the bill record: freshness, coverage, collector behavior, and gaps should be visible.
Method
Official sources first. Aggregate output second.
Harbor Legal Independent Index is built around source discipline. The project tracks legislatures, Congress, federal appeals circuits, and the Supreme Court, then reduces that public movement into records that can be reported, queried, and eventually exposed to MCP.
Court coverage is limited to federal appeals circuits and the Supreme Court, including opinions and selected order activity. Local courts and trial-level decisions stay out of scope for the MVP.
Records are mapped to plain-language domains so people and agents can ask about legal movement without knowing every statutory code, bill number, or case citation in advance.
Public access should begin with cacheable read-only endpoints: reports, source status, aggregate movement, and topic summaries. Write-side ingest stays private.
What we don't claim